## Section A: Equal Groups of Fractions

### Lesson 1 : Equal Groups of Unit Fractions

### Lesson 2 : Representations of Equal Groups of Fractions

### Lesson 3 : Patterns in Multiplication

### Lesson 4 : Equal Groups of Non-Unit Fractions

### Lesson 5 : Equivalent Multiplication Expressions

### Lesson 6 : Problems with Equal Groups of Fractions

## Section B: Addition and Subtraction of Fractions

### Lesson 7 : Fractions as Sums

### Lesson 8 : Addition of Fractions

### Lesson 9 : Differences of Fractions

### Lesson 10 : The Numbers in Subtraction

### Lesson 11 : Subtract Fractions Flexibly

### Lesson 12 : Sums and Differences of Fractions

### Lesson 13 : Fractional Measurements on Line Plots

### Lesson 14 : Problems about Fractional Measurement Data