Textbooks develop concepts in increasing levels of abstraction. Each topic is thoughtfully introduced and extended through the use of exploration, play, and opportunities for mastery of skills.

Features & Components:

- Chapter Opener: Each chapter begins with an engaging scenario that stimulates student curiosity in new concepts. This scenario also provides teachers an opportunity to review skills.
- Lesson: Engaging imagery draws students into the concept of each lesson.
- Exercise: A pencil icon at the end of the lesson links to additional practice problems in the corresponding workbook.
- Review: A review of chapter material provides ongoing practice of concepts and skills.

Note: Two textbooks (A and B) for each grade correspond to the two halves of the school year. Answer key not included. Soft cover.

**Table of Contents**

Chapter 1: Whole Numbers

Lesson 1: Numbers to One Billion

Lesson 2: Multiplying by 10, 100, and 1,000

Lesson 3: Dividing by 10, 100, and 1,000

Lesson 4: Multiplying by Tens, Hundreds, and Thousands

Lesson 5: Dividing by Tens, Hundreds, and Thousands

Lesson 6: Practice

Chapter 2: Writing and Evaluating Expressions

Lesson 1: Expressions with Parentheses

Lesson 2: Order of Operations — Part 1

Lesson 3: Order of Operations — Part 2

Lesson 4: Other Ways to Write and Evaluate Expressions

Lesson 5: Word Problems — Part 1

Lesson 6: Word Problems — Part 2

Lesson 7: Practice

Chapter 3: Multiplication and Division

Lesson 1: Multiplying by a 2-digit Number — Part 1

Lesson 2: Multiplying by a 2-digit Number — Part 2

Lesson 3: Practice A

Lesson 4: Dividing by a Multiple of Ten

Lesson 5: Divide a 2-digit Number by a 2-digit Number

Lesson 6: Divide a 3-digit Number by a 2-digit Number — Part 1

Lesson 7: Divide a 3-digit Number by a 2-digit Number — Part 2

Lesson 8: Divide a 4-digit Number by a 2-digit Number

Lesson 9: Practice B

Chapter 4: Addition and Subtraction of Fractions

Lesson 1: Fractions and Division

Lesson 2: Adding Unlike Fractions

Lesson 3: Subtracting Unlike Fractions

Lesson 4: Practice A

Lesson 5: Adding Mixed Numbers— Part 1

Lesson 6: Adding Mixed Numbers— Part 2

Lesson 7: Subtracting Mixed Numbers— Part 1

Lesson 8: Subtracting Mixed Numbers— Part 2

Lesson 9: Practice B

Chapter 5: Multiplication of Fractions

Lesson 1: Multiplying a Fraction by a Whole Number

Lesson 2: Multiplying a Whole Number by a Fraction

Lesson 3: Word Problems — Part 1

Lesson 4: Practice A

Lesson 5: Multiplying a Fraction by a Unit Fraction

Lesson 6: Multiplying a Fraction by a Fraction — Part 1

Lesson 7: Multiplying a Fraction by a Fraction — Part 2

Lesson 8: Multiplying Mixed Numbers

Lesson 9: Word Problems — Part 2

Lesson 10: Fractions and Reciprocals

Lesson 11: Practice B

Review 1

Chapter 6: Division of Fractions

Lesson 1: Dividing a Unit Fraction by a Whole Number

Lesson 2: Dividing a Fraction by a Whole Number

Lesson 3: Practice A

Lesson 4: Dividing a Whole Number by a Unit Fraction

Lesson 5: Dividing a Whole Number by a Fraction

Lesson 6: Word Problems

Lesson 7: Practice B

Chapter 7: Measurement

Lesson 1: Fractions and Measurement Conversions

Lesson 2: Fractions and Area

Lesson 3: Practice A

Lesson 4: Area of a Triangle — Part 1

Lesson 5: Area of a Triangle — Part 2

Lesson 6: Area of Complex Figures

Lesson 7: Practice B

Chapter 8: Volume of Solid Figures

Lesson 1: Cubic Units

Lesson 2: Volume of Cuboids

Lesson 3: Finding the Length of an Edge

Lesson 4: Practice A

Lesson 5: Volume of Complex Shapes

Lesson 6: Volume and Capacity — Part 1

Lesson 7: Volume and Capacity — Part 2

Lesson 8: Practice B

Review 2