- Section A: Equal Groups of Fractions
- Warm-up: How Many Do You See: Oranges
- 1.1: Crackers, Kiwis, and More
- 1.2: What Could It Mean?

- Warm-up: Number Talk: Three, Six, Nine, Twelve
- 2.1: Card Sort: Expressions and Diagrams
- 2.2: Different Representations

- 3.1: Describe the Pattern
- 3.2: What's Missing?

- Warm-up: Notice and Wonder: Thirds
- 4.1: Jars of Jam
- 4.2: How Do We Multiply?

- Warm-up: How Many Do You See?
- 5.1: Complete the Equations
- 5.2: Fractions and Matching Expressions

- Warm-up: True or False: Two and Three Factors
- 6.1: Banana Bread Recipe
- 6.2: How Much Milk Was Used?
- Section A Summary
- Section A Practice Problems

- Section B: Addition and Subtraction of Fractions
- 7.1: Barley Soup
- 7.2: Sums in Fifths and Thirds

- Warm-up: Notice and Wonder: A Fraction on a Number Line
- 8.1: Sum of Jumps
- 8.2: What is the Sum?
- 8.3: Make Two Jumps

- Warm-up: True or False: Sums of Tenths
- 9.1: Jump to Subtract
- 9.2: What’s the Difference?
- 9.3: Make a Jump, Subtraction Edition

- Warm-up: Number Talk: Groups of Twelfths
- 10.1: What’s Left?
- 10.2: Card Sort: Twelfths

- Warm-up: Which One Doesn’t Belong: Fractional Values
- 11.1: Friendship Bracelets
- 11.2: Multiple Ways to Subtract

- Warm-up: Number Talk: Subtract Some Eighths
- 12.1: Make It True
- 12.2: To Decompose or Not to Decompose

- Warm-up: Notice and Wonder: Which Ruler?
- 13.1: Measure to the Nearest \frac59{4} and \frac59{8} Inch
- 13.2: Colored-pencil Measurements
- 13.3: Noah's Colored Pencils

- Warm-up: Notice and Wonder: Shoe Sizes
- 14.1: Shoe Lengths
- 14.2: Larger Shoes, Anyone?
- Section B Summary
- Section B Practice Problems

- Section C: Addition of Tenths and Hundredths
- Warm-up: Which One Doesn't Belong: Halves, Fourths, Sixths, and Eights
- 15.1: All the Way to the Top
- 15.2: Stacks of Blocks

- Warm-up: Notice and Wonder: Shaded Rectangles and Squares
- 16.1: Tenths and Hundredths
- 16.2: Walk, Stop, and Sip

- Warm-up: Which One Doesn’t Belong: Tenths and Hundredths
- 17.1: Card Sort: Less Than, Equal to, or Greater Than 1?
- 17.2: What’s Missing?
- 17.3: Fraction Action: Tenths, Hundredths

- Warm-up: Number Talk: A Bunch of Numbers
- 18.1: Stack Centavos and Pesos
- 18.2: More Than Two Fractions
- Section C Summary

- Warm-up: Notice and Wonder: Sticky Notes
- 19.1: Sticky-note Designs
- 19.2: Hiking Trails
- 19.3: Find a Match

- Warm-up: Which One Doesn’t Belong: Sticky Notes
- 20.1: Estimation Exploration: Sticky Notes
- 20.2: Design Your Initial
- Section C Practice Problems

- Glossary
- Image Attributions

- Notes
- Notes