# Lesson 3

Stories with Fractions

### Lesson Purpose

### Lesson Narrative

In a previous lesson, students solved word problems that involved adding and subtracting fractions and using equivalent fractions. Here, students continue to apply their understanding of fractions to solve problems that require adding or subtracting decimal fractions. Students also show their understanding of the structure of fractions and word problems to create their own situations given a value or equation and some constraints. In doing so, they practice reasoning quantitatively and abstractly (MP2).

Invite students to use the Three Reads routine as needed to solve problems. If students need additional support with the concepts in this lesson, refer back to Unit 3, Section B in the curriculum materials.

- Representation

- MLR8

### Learning Goals

Teacher Facing

- Solve and create word problems involving addition and subtraction of fractions referring to the same whole.

### Student Facing

- Let’s add and subtract mixed numbers.

### Required Preparation

### CCSS Standards

Addressing

### Lesson Timeline

Warm-up | 10 min |

Activity 1 | 20 min |

Activity 2 | 15 min |

Lesson Synthesis | 10 min |

Cool-down | 5 min |