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Chapter 37: Coding: Moving Multiple Objects

Learn Grade 2 mathematics with very-beginner explanations, original worked examples, practice, reasoning, and review.

Grade 2Very Beginner Friendly10 Examples Per Topic30 Q&APractice + Review
Estimated reading time0% read
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Chapter Overview

This chapter teaches Coding: Moving Multiple Objects with simple explanations, visual thinking, worked examples, practice, and review.

37.1 Two objects on one grid

Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: A command moves 3 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 9

Worked Example 2

Problem: A command moves 3 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 6

Worked Example 3

Problem: A command moves 4 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 8

Worked Example 4

Problem: A command moves 5 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 15

Worked Example 5

Problem: A command moves 4 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 12

Worked Example 6

Problem: A command moves 2 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 8

Worked Example 7

Problem: A command moves 4 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 16

Worked Example 8

Problem: A command moves 3 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 6

Worked Example 9

Problem: A command moves 3 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 6

Worked Example 10

Problem: A command moves 3 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 9

37.2 Giving each object instructions

Giving each object instructions is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 19 and 10 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 2

Problem: Use 8 and 12 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 3

Problem: Use 15 and 15 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 4

Problem: Use 6 and 7 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 5

Problem: Use 14 and 1 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 6

Problem: Use 17 and 17 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 7

Problem: Use 5 and 20 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 8

Problem: Use 6 and 4 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 9

Problem: Use 6 and 12 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

Worked Example 10

Problem: Use 17 and 15 to make a simple example about Giving each object instructions.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Giving each object instructions.

37.3 Different starting points

Different starting points is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 12 and 16 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 2

Problem: Use 14 and 6 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 3

Problem: Use 13 and 18 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 4

Problem: Use 8 and 11 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 5

Problem: Use 14 and 20 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 6

Problem: Use 17 and 8 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 7

Problem: Use 17 and 15 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 8

Problem: Use 15 and 5 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 9

Problem: Use 14 and 5 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

Worked Example 10

Problem: Use 8 and 11 to make a simple example about Different starting points.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different starting points.

37.4 Different destinations

Different destinations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 6 and 18 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 2

Problem: Use 13 and 19 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 3

Problem: Use 2 and 6 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 4

Problem: Use 13 and 2 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 5

Problem: Use 19 and 8 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 6

Problem: Use 10 and 17 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 7

Problem: Use 15 and 19 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 8

Problem: Use 1 and 6 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 9

Problem: Use 14 and 7 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

Worked Example 10

Problem: Use 20 and 14 to make a simple example about Different destinations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Different destinations.

37.5 Moving at the same time

Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 9:00

Worked Example 2

Problem: An activity starts at 3:00 and lasts 60 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 4:00

Worked Example 3

Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 5:30

Worked Example 4

Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 7:00

Worked Example 5

Problem: An activity starts at 7:00 and lasts 30 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 7:30

Worked Example 6

Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 9:30

Worked Example 7

Problem: An activity starts at 2:00 and lasts 60 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 3:00

Worked Example 8

Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 2:30

Worked Example 9

Problem: An activity starts at 6:00 and lasts 30 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 6:30

Worked Example 10

Problem: An activity starts at 1:00 and lasts 60 minutes. When does it end?

  1. Move forward by the elapsed time.

Very beginner explanation: Elapsed time tells how long passes.

Answer: 2:00

37.6 Moving one after another

Moving one after another is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 3 and 3 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 2

Problem: Use 5 and 7 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 3

Problem: Use 19 and 13 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 4

Problem: Use 10 and 3 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 5

Problem: Use 4 and 20 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 6

Problem: Use 12 and 11 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 7

Problem: Use 11 and 5 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 8

Problem: Use 11 and 16 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 9

Problem: Use 7 and 16 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

Worked Example 10

Problem: Use 6 and 17 to make a simple example about Moving one after another.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Moving one after another.

37.7 Avoiding obstacles

Avoiding obstacles is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 8 and 15 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 2

Problem: Use 15 and 2 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 3

Problem: Use 6 and 5 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 4

Problem: Use 19 and 3 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 5

Problem: Use 3 and 9 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 6

Problem: Use 15 and 2 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 7

Problem: Use 10 and 19 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 8

Problem: Use 4 and 14 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 9

Problem: Use 5 and 11 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

Worked Example 10

Problem: Use 13 and 19 to make a simple example about Avoiding obstacles.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Avoiding obstacles.

37.8 Comparing two paths

Comparing two paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 15 and 16 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 2

Problem: Use 16 and 1 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 3

Problem: Use 19 and 11 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 4

Problem: Use 15 and 1 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 5

Problem: Use 7 and 4 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 6

Problem: Use 13 and 13 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 7

Problem: Use 6 and 8 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 8

Problem: Use 15 and 4 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 9

Problem: Use 7 and 9 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

Worked Example 10

Problem: Use 15 and 10 to make a simple example about Comparing two paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Comparing two paths.

37.9 Shorter and longer paths

Shorter and longer paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 11 and 6 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 2

Problem: Use 17 and 1 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 3

Problem: Use 10 and 14 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 4

Problem: Use 13 and 9 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 5

Problem: Use 4 and 12 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 6

Problem: Use 17 and 11 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 7

Problem: Use 20 and 20 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 8

Problem: Use 9 and 2 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 9

Problem: Use 13 and 8 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

Worked Example 10

Problem: Use 13 and 5 to make a simple example about Shorter and longer paths.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Shorter and longer paths.

37.10 Predicting final locations

Predicting final locations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 17 and 3 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 2

Problem: Use 16 and 12 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 3

Problem: Use 8 and 13 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 4

Problem: Use 14 and 5 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 5

Problem: Use 2 and 2 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 6

Problem: Use 5 and 9 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 7

Problem: Use 8 and 20 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 8

Problem: Use 5 and 10 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 9

Problem: Use 2 and 7 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

Worked Example 10

Problem: Use 13 and 6 to make a simple example about Predicting final locations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Predicting final locations.

37.11 Changing one instruction

Changing one instruction is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Use 3 and 5 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 2

Problem: Use 18 and 9 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 3

Problem: Use 19 and 7 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 4

Problem: Use 4 and 1 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 5

Problem: Use 10 and 8 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 6

Problem: Use 14 and 19 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 7

Problem: Use 7 and 17 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 8

Problem: Use 11 and 14 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 9

Problem: Use 7 and 16 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

Worked Example 10

Problem: Use 15 and 12 to make a simple example about Changing one instruction.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. Check that the example matches the idea.

Very beginner explanation: Simple models make Grade 2 ideas easier to understand.

Answer: A correct Grade 2 example of Changing one instruction.

37.12 Explaining a multi-object algorithm

Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: A command moves 2 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 6

Worked Example 2

Problem: A command moves 3 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 6

Worked Example 3

Problem: A command moves 3 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 12

Worked Example 4

Problem: A command moves 2 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 8

Worked Example 5

Problem: A command moves 4 squares and repeats 3 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 12

Worked Example 6

Problem: A command moves 5 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 20

Worked Example 7

Problem: A command moves 4 squares and repeats 2 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 8

Worked Example 8

Problem: A command moves 4 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 16

Worked Example 9

Problem: A command moves 2 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 8

Worked Example 10

Problem: A command moves 3 squares and repeats 4 times. How many squares altogether?

  1. Repeat the move.
  2. Add the equal moves.

Very beginner explanation: Repeating instructions is a simple loop.

Answer: 12

30 Review Questions and Answers

Q1. What should a Grade 2 learner understand about Two objects on one grid?

Answer: Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems.

Q2. What should a Grade 2 learner understand about Giving each object instructions?

Answer: Giving each object instructions is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q3. What should a Grade 2 learner understand about Different starting points?

Answer: Different starting points is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q4. What should a Grade 2 learner understand about Different destinations?

Answer: Different destinations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q5. What should a Grade 2 learner understand about Moving at the same time?

Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.

Q6. What should a Grade 2 learner understand about Moving one after another?

Answer: Moving one after another is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q7. What should a Grade 2 learner understand about Avoiding obstacles?

Answer: Avoiding obstacles is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q8. What should a Grade 2 learner understand about Comparing two paths?

Answer: Comparing two paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q9. What should a Grade 2 learner understand about Shorter and longer paths?

Answer: Shorter and longer paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q10. What should a Grade 2 learner understand about Predicting final locations?

Answer: Predicting final locations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q11. What should a Grade 2 learner understand about Changing one instruction?

Answer: Changing one instruction is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q12. What should a Grade 2 learner understand about Explaining a multi-object algorithm?

Answer: Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems.

Q13. What should a Grade 2 learner understand about Two objects on one grid?

Answer: Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems.

Q14. What should a Grade 2 learner understand about Giving each object instructions?

Answer: Giving each object instructions is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q15. What should a Grade 2 learner understand about Different starting points?

Answer: Different starting points is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q16. What should a Grade 2 learner understand about Different destinations?

Answer: Different destinations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q17. What should a Grade 2 learner understand about Moving at the same time?

Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.

Q18. What should a Grade 2 learner understand about Moving one after another?

Answer: Moving one after another is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q19. What should a Grade 2 learner understand about Avoiding obstacles?

Answer: Avoiding obstacles is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q20. What should a Grade 2 learner understand about Comparing two paths?

Answer: Comparing two paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q21. What should a Grade 2 learner understand about Shorter and longer paths?

Answer: Shorter and longer paths is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q22. What should a Grade 2 learner understand about Predicting final locations?

Answer: Predicting final locations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q23. What should a Grade 2 learner understand about Changing one instruction?

Answer: Changing one instruction is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q24. What should a Grade 2 learner understand about Explaining a multi-object algorithm?

Answer: Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems.

Q25. What should a Grade 2 learner understand about Two objects on one grid?

Answer: Coding uses exact step-by-step instructions to move objects, repeat actions, and solve problems.

Q26. What should a Grade 2 learner understand about Giving each object instructions?

Answer: Giving each object instructions is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q27. What should a Grade 2 learner understand about Different starting points?

Answer: Different starting points is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q28. What should a Grade 2 learner understand about Different destinations?

Answer: Different destinations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q29. What should a Grade 2 learner understand about Moving at the same time?

Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.

Q30. What should a Grade 2 learner understand about Moving one after another?

Answer: Moving one after another is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.