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Chapter 37: Coding: Sequential and Concurrent Events

Learn Grade 4 mathematics with very-beginner explanations, original worked examples, practice, reasoning, and review.

Grade 4Beginner Friendly10 Examples Per Topic30 Q&APractice + Review
Estimated reading time0% read
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Chapter Overview

This chapter teaches Coding: Sequential and Concurrent Events in original, simple language with step-by-step reasoning, worked examples, practice exercises, common mistakes, and review questions.

37.1 Algorithm meaning

Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 9 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 2

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 16 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 3

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 3 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 4

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 9 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 5

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 7 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 6

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 18 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 7

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 3 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 8

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 17 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 9

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 6 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Worked Example 10

Problem: Create a simple Grade 4 example about Algorithm meaning using the numbers 17 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Algorithm meaning.

Practice Exercise

Create and solve one new example of Algorithm meaning. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.2 Sequential instructions

Sequential instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 13 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 2

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 8 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 3

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 7 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 4

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 18 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 5

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 17 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 6

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 18 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 7

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 2 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 8

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 7 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 9

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 19 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Worked Example 10

Problem: Create a simple Grade 4 example about Sequential instructions using the numbers 14 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Sequential instructions.

Practice Exercise

Create and solve one new example of Sequential instructions. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.3 Order of instructions

Order of instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 15 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 2

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 12 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 3

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 16 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 4

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 9 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 5

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 20 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 6

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 2 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 7

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 2 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 8

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 18 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 9

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 4 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Worked Example 10

Problem: Create a simple Grade 4 example about Order of instructions using the numbers 12 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Order of instructions.

Practice Exercise

Create and solve one new example of Order of instructions. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.4 Concurrent events

Probability describes how likely an event is. Predictions can be checked by carrying out simple experiments and recording outcomes. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: A bag has 6 red and 5 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: red

Worked Example 2

Problem: A bag has 4 red and 1 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: red

Worked Example 3

Problem: A bag has 5 red and 4 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: red

Worked Example 4

Problem: A bag has 4 red and 6 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: blue

Worked Example 5

Problem: A bag has 2 red and 4 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: blue

Worked Example 6

Problem: A bag has 5 red and 6 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: blue

Worked Example 7

Problem: A bag has 6 red and 2 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: red

Worked Example 8

Problem: A bag has 5 red and 5 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: equally likely

Worked Example 9

Problem: A bag has 2 red and 5 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: blue

Worked Example 10

Problem: A bag has 6 red and 1 blue counters. Which colour is more likely to be drawn?

  1. Compare the numbers of each colour.
  2. More possible outcomes means a greater chance.

Very beginner explanation: Probability compares how likely outcomes are.

Answer: red

Practice Exercise

Create and solve one new example of Concurrent events. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.5 Coordinates in simple code

Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 7 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 2

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 13 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 3

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 18 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 4

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 5 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 5

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 2 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 6

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 4 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 7

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 20 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 8

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 17 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 9

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 15 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Worked Example 10

Problem: Create a simple Grade 4 example about Coordinates in simple code using the numbers 8 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Coordinates in simple code.

Practice Exercise

Create and solve one new example of Coordinates in simple code. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.6 Movement commands

Movement commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Movement commands using the numbers 6 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 2

Problem: Create a simple Grade 4 example about Movement commands using the numbers 4 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 3

Problem: Create a simple Grade 4 example about Movement commands using the numbers 12 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 4

Problem: Create a simple Grade 4 example about Movement commands using the numbers 8 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 5

Problem: Create a simple Grade 4 example about Movement commands using the numbers 4 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 6

Problem: Create a simple Grade 4 example about Movement commands using the numbers 19 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 7

Problem: Create a simple Grade 4 example about Movement commands using the numbers 2 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 8

Problem: Create a simple Grade 4 example about Movement commands using the numbers 17 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 9

Problem: Create a simple Grade 4 example about Movement commands using the numbers 14 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Worked Example 10

Problem: Create a simple Grade 4 example about Movement commands using the numbers 12 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Movement commands.

Practice Exercise

Create and solve one new example of Movement commands. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.7 Turning commands

Turning commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Turning commands using the numbers 16 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 2

Problem: Create a simple Grade 4 example about Turning commands using the numbers 20 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 3

Problem: Create a simple Grade 4 example about Turning commands using the numbers 16 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 4

Problem: Create a simple Grade 4 example about Turning commands using the numbers 15 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 5

Problem: Create a simple Grade 4 example about Turning commands using the numbers 20 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 6

Problem: Create a simple Grade 4 example about Turning commands using the numbers 8 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 7

Problem: Create a simple Grade 4 example about Turning commands using the numbers 13 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 8

Problem: Create a simple Grade 4 example about Turning commands using the numbers 19 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 9

Problem: Create a simple Grade 4 example about Turning commands using the numbers 3 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Worked Example 10

Problem: Create a simple Grade 4 example about Turning commands using the numbers 20 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Turning commands.

Practice Exercise

Create and solve one new example of Turning commands. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.8 Drawing simple line designs

Drawing simple line designs is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 17 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 2

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 2 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 3

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 14 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 4

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 5 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 5

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 11 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 6

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 10 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 7

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 8 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 8

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 13 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 9

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 10 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Worked Example 10

Problem: Create a simple Grade 4 example about Drawing simple line designs using the numbers 19 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Drawing simple line designs.

Practice Exercise

Create and solve one new example of Drawing simple line designs. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.9 Predicting code output

Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 18 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 2

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 14 and 10.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 3

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 18 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 4

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 14 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 5

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 12 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 6

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 8 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 7

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 15 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 8

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 19 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 9

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 14 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Worked Example 10

Problem: Create a simple Grade 4 example about Predicting code output using the numbers 9 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Predicting code output.

Practice Exercise

Create and solve one new example of Predicting code output. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.10 Tracing code by hand

Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 13 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 2

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 6 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 3

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 10 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 4

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 3 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 5

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 20 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 6

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 4 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 7

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 5 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 8

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 7 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 9

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 20 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Worked Example 10

Problem: Create a simple Grade 4 example about Tracing code by hand using the numbers 9 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Tracing code by hand.

Practice Exercise

Create and solve one new example of Tracing code by hand. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.11 Finding an incorrect instruction

Finding an incorrect instruction is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 19 and 10.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 2

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 2 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 3

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 20 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 4

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 8 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 5

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 6 and 10.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 6

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 8 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 7

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 7 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 8

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 17 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 9

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 5 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Worked Example 10

Problem: Create a simple Grade 4 example about Finding an incorrect instruction using the numbers 2 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Finding an incorrect instruction.

Practice Exercise

Create and solve one new example of Finding an incorrect instruction. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

37.12 Explaining how code represents math

Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 6 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 2

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 13 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 3

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 8 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 4

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 18 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 5

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 14 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 6

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 18 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 7

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 5 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 8

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 14 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 9

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 5 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Worked Example 10

Problem: Create a simple Grade 4 example about Explaining how code represents math using the numbers 20 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Explaining how code represents math.

Practice Exercise

Create and solve one new example of Explaining how code represents math. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

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30 Review Questions and Answers

Q1. What is important to understand about Algorithm meaning?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q2. What is important to understand about Sequential instructions?

Answer: Sequential instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q3. What is important to understand about Order of instructions?

Answer: Order of instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q4. What is important to understand about Concurrent events?

Answer: Probability describes how likely an event is. Predictions can be checked by carrying out simple experiments and recording outcomes.

Q5. What is important to understand about Coordinates in simple code?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q6. What is important to understand about Movement commands?

Answer: Movement commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q7. What is important to understand about Turning commands?

Answer: Turning commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q8. What is important to understand about Drawing simple line designs?

Answer: Drawing simple line designs is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q9. What is important to understand about Predicting code output?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q10. What is important to understand about Tracing code by hand?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q11. What is important to understand about Finding an incorrect instruction?

Answer: Finding an incorrect instruction is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q12. What is important to understand about Explaining how code represents math?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q13. How would you explain Algorithm meaning?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q14. How would you explain Sequential instructions?

Answer: Sequential instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q15. How would you explain Order of instructions?

Answer: Order of instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q16. How would you explain Concurrent events?

Answer: Probability describes how likely an event is. Predictions can be checked by carrying out simple experiments and recording outcomes.

Q17. How would you explain Coordinates in simple code?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q18. How would you explain Movement commands?

Answer: Movement commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q19. How would you explain Turning commands?

Answer: Turning commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q20. How would you explain Drawing simple line designs?

Answer: Drawing simple line designs is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q21. How would you explain Predicting code output?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q22. How would you explain Tracing code by hand?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q23. How would you explain Finding an incorrect instruction?

Answer: Finding an incorrect instruction is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q24. How would you explain Explaining how code represents math?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q25. What should a beginner check when working with Algorithm meaning?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q26. What should a beginner check when working with Sequential instructions?

Answer: Sequential instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q27. What should a beginner check when working with Order of instructions?

Answer: Order of instructions is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q28. What should a beginner check when working with Concurrent events?

Answer: Probability describes how likely an event is. Predictions can be checked by carrying out simple experiments and recording outcomes.

Q29. What should a beginner check when working with Coordinates in simple code?

Answer: Coding gives precise instructions. Mathematical code can represent movement, shapes, patterns, repeated steps, and problem-solving rules.

Q30. What should a beginner check when working with Movement commands?

Answer: Movement commands is an important Grade 4 mathematics idea in Coding: Sequential and Concurrent Events. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.