# Lesson 19

Fraction Games

### Lesson Purpose

The purpose of this lesson is for students to use their understanding of fractions and division to make the largest and smallest expressions using given numbers.

### Lesson Narrative

Students work together with expressions involving a unit fraction divided by a whole number and a whole number divided by a unit fraction. In both activities, students write multiplication and division expressions, given specific digits to choose from. In Activity 1, students are applying what they learned to strategically write expressions that represent the greatest product or quotient. In Activity 2, they are trying to write expressions that represent the smallest product or quotient.

- Engagement

- MLR8

### Learning Goals

Teacher Facing

- Multiply and divide with fractions.

### Student Facing

- Let’s multiply and divide with fractions.

### 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 |

### Teacher Reflection Questions

How effective were your questions in supporting students’ thinking today? What did students say or do that showed they were effective?

### Suggested Centers

- Compare (1–5), Stage 8: Divide Fractions and Whole Numbers (Addressing)
- Rolling for Fractions (3–5), Stage 5: Divide Unit Fractions and Whole Numbers (Addressing)
- How Close? (1–5), Stage 6: Multiply to 3,000 (Supporting)