# Dimensions Math Textbook 4B

**Dimensions Math ^{®} Textbook 4B**

Chapter 10: Measurement

Lesson 2: Customary Units of Length

Lesson 3: Customary Units of Weight

Lesson 4: Customary Units of Capacity

Lesson 5: Units of Time

Lesson 6: Practice A

Lesson 7: Fractions and Measurement — Part 1

Lesson 8: Fractions and Measurement — Part 2

Lesson 9: Practice B

Chapter 11: Area and Perimeter

Lesson 2: Area of Rectangles — Part 2

Lesson 3: Area of Composite Figures

Lesson 4: Perimeter — Part 1

Lesson 5: Perimeter — Part 2

Lesson 6: Practice

Lesson 2: Tenths — Part 2

Lesson 3: Hundredths — Part 1

Lesson 4: Hundredths — Part 2

Lesson 5: Expressing Decimals as Fractions in Simplest Form

Lesson 6: Expressing Fractions as Decimals

Lesson 7: Practice A

Lesson 8: Comparing and Ordering Decimals

Lesson 9: Rounding Decimals

Lesson 10: Practice B

Lesson 2: Adding Tenths with Regrouping

Lesson 3: Subtracting Tenths with Regrouping

Lesson 4: Practice A

Lesson 5: Adding Hundredths

Lesson 6: Subtracting from 1 and 0.1

Lesson 7: Subtracting Hundredths

Lesson 8: Money, Decimals, and Fractions

Lesson 9: Practice B

Review 3

Lesson 2: Multiplying Decimals by a Whole Number — Part 1

Lesson 3: Multiplying Decimals by a Whole Number — Part 2

Lesson 4: Practice A

Lesson 5: Dividing Tenths and Hundredths

Lesson 6: Dividing Decimals by a Whole Number — Part 1

Lesson 7: Dividing Decimals by a Whole Number — Part 2

Lesson 8: Dividing Decimals by a Whole Number — Part 3

Lesson 9: Practice B

Chapter 15: Angles

Lesson 2: Measuring Angles

Lesson 3: Drawing Angles

Lesson 4: Adding and Subtracting Angles

Lesson 5: Reflex Angles

Lesson 6: Practice

Chapter 16: Lines and Shapes

Lesson 2: Parallel Lines

Lesson 3: Drawing Perpendicular and Parallel Lines

Lesson 4: Quadrilaterals

Lesson 5: Lines of Symmetry

Lesson 6: Symmetrical Figures and Patterns

Lesson 7: Practice

Chapter 17: Properties of Cuboids

Lesson 2: Nets of Cuboids

Lesson 3: Faces and Edges of Cuboids

Lesson 4: Practice

Review 4

Review 5

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**Dimensions Math ^{®}**

**PreK-5 series**features the progression, rigor, and pacing that define Singapore math. Throughout the series, five characters offer students suggestions on how to think about problems. They remind students of strategies they’ve learned and point out important information that encourages them to come up with their own solutions.

Teacher’s Guides include lesson plans, mathematical background, games, helpful suggestions, and comprehensive resources for daily lessons. Lessons are laid out clearly and activities are designed for the whole class, small groups, and extension.