1 Math Dimensions — Grade 1 Math Lessons | PrepBox

1 Math Dimensions — Grade 1

Explore 1 Math Dimensions for Grade 1. Follow the chapter and section outline to find available interactive lessons and video explanations. These are independent PrepBox learning resources; PrepBox is not affiliated with the textbook publisher.

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451 topic entries in the outline · 400 interactive entries · 109 video entries. Topics may appear in more than one section.

Chapter 1 Numbers to 10

1.1 Numbers to 10

1.2 The Number 0

1.3 Order Numbers

1.4 Compare Numbers

Practice

Chapter 2 Number Bonds

2.1 Number Bonds

2.2 Make 7

2.3 Make 8

2.4 Make 9

2.5 Make 10 - Part 1

2.6 Make 10 - Part 2

Chapter 2 Practice

Chapter 3 Addition

3.1 Addition as Putting Together

3.2 Addition as Adding More

3.3 Addition with 0

3.4 Addition with Number Bonds

3.5 Addition by Counting On

3.6 Make Addition Stories

Lesson 7 Addition Facts Think

3.7 Addition Facts

Lesson 8 Practice

Addition by completing 10s

Chapter 4 Subtraction

4.1 Subtraction as Taking Away

4.2 Subtraction as Taking Apart

4.3 Subtraction as Counting Back

4.4 Subtraction with 0

4.5 Make Subtraction Stories

  • Subtraction Word Problem · Not yet available

4.6 Subtraction with Number Bonds

4.7 Addition and Subtraction

4.8 Subtraction Facts

Chapter Practice

Chapter Review

Chapter 5 Numbers to 20

5.1 Numbers to 20

5.2 Add or Subtract Tens or Ones

5.3 Order Numbers to 20

5.4 Compare Numbers to 20

5.5 Addition

5.6 Subtraction

5.7 Practice

Chapter 6 Addition to 20

6.1 Addition to 20

6.2 Addition to 20

6.3 Add by Making 10 - part 3

6.4 Addition Facts to 20

6.5 Practice

Chapter 7 Subtraction within 20

7.1 Subtract from 10 part 1

7.2 Subtract from 10 - Part 2

7.3 Subtract the Ones First

7.4 Word Problems

7.5 Subtraction Facts Within 20

7.6 Practice

Chapter 8 Shapes

8.1 Solid and Flat Shapes

8.2 Grouping Shapes

8.3 Making Shapes

8.4 Practice

Chapter 9 Ordinal Numbers

9.1 Naming Positions

9.2 Word Problems

9.3 Practice

Chapter 10 Lengths

10.1 Comparing Lengths Directly

10.2 Comparing Lengths Indirectly

10.3 Comparing Lengths with Units

10.4 Practice

Chapter 11 Comparing

11.1 Subtraction as Comparison

  • Subtraction Word Problem · Not yet available

11.2 Making Comparison Subtraction Stories

  • Subtraction Word Problem · Not yet available

11.3 Picto graphs

11.4 Practice

Chapter 12 Numbers to 40

Lesson 1 Numbers to 40 Think

Lesson 1 Numbers to 40 Learn

Lesson 1 Numbers to 40 Do

Lesson 2 Tens and Ones Do

Lesson 3 Counting by Tens and Ones Think

Lesson 3 Counting by Tens and Ones Learn

Lesson 3 Counting by Tens and Ones Do

Chapter 13 Addition and Subtraction to 40

13.1 Adding Equal Groups Think

13.1 Adding Equal Groups Do

13.2 Sharing Learn Do

  • Share Objects Equally · Not yet available

13.4 Make the Next Ten Learn

13.4 Use Addition Facts

13.5 Subtract from Tens

13.6 Use Subtraction Facts

13.7 Add Three Numbers

13.8 Practice

Chapter 14 Grouping and Sharing

14.1 Adding Equal Groups Learn

14.2 Sharing Think

14.3 Grouping

14.4 Practice

Chapter 15 Fractions

15.1 Halves

15.2 Fourths

  • Identify Halves of a Shape · Not yet available
  • Identify Fourths of a Shape · Not yet available

15 Practice

  • Identify Halves of a Shape · Not yet available
  • Identify Fourths of a Shape · Not yet available

15 Review

Chapter 16 Numbers to 100

16.1 Numbers to 100

16.2 Tens and Ones

16.2 Count by Ones or Tens

16.4 Compare Numbers to 100

16 Practice

Chapter 17 Add and Subtract within 100

17.1 Add Ones

17.2 Add Tens

17.3 Add Ones Part 2

17.4 Add Tens and Ones Part 1

17.5 Add Tens and Ones Part 2

17.6 Subtract Ones - Part 1

17.7 Subtract from Tens

17.8 Subtract Ones - Part 2

17.9 Subtract Tens

17.10 Subtract Tens

17.11 Subtract Tens and Ones - Part 2

Chapter 12 Practice

Chapter 18 Time

18.1 Telling Time to the Hour

18.2 Telling Time to the Half Hour

18.3 Telling Time to the 5 Minutes

18 Practice

Chapter 19 Money

19.1 Coins

No named lesson topics are currently listed for this section.

19.2 Counting Money

No named lesson topics are currently listed for this section.

19.3 Bills

No named lesson topics are currently listed for this section.

19.4 Shopping

No named lesson topics are currently listed for this section.

19.5 Practice

No named lesson topics are currently listed for this section.

19.6 Review

No named lesson topics are currently listed for this section.