# Lesson 7

Problemas de conversión de varios pasos: Longitud en unidades tradicionales

### Lesson Purpose

### Lesson Narrative

In this lesson, students solve multi-step conversion problems with standard length units. These conversions can be more challenging because they involve multiplying by numbers other than 10 and powers of 10. This means that students will use the skills they developed in previous units where they learned to multiply whole numbers and fractions. Students continue to work with whole numbers and fractions and to think strategically about whether to convert from the larger unit to the smaller unit or from the smaller unit to the larger unit.

- Engagement

- MLR8

### Learning Goals

Teacher Facing

- Solve multi-step problems involving customary length measurement conversions.

### Student Facing

- Resolvamos problemas de varios pasos sobre longitudes en unidades tradicionales.

### Required Materials

### Required Preparation

Activity 1:

- Create a set of cards from the blackline master for each group of 2.

Activity 2:

- Before the lesson, figure out a location that students would be familiar with that is about 1 mile away from the school. You will share this location in the launch to help students understand how far 1 mile is.

### Lesson Timeline

Warm-up | 10 min |

Activity 1 | 15 min |

Activity 2 | 20 min |

Lesson Synthesis | 10 min |

Cool-down | 5 min |

### Teacher Reflection Questions

### Suggested Centers

- Would You Rather? (2–5), Stage 3: Compare Units in a Given System (Addressing)
- Compare (1–5), Stage 6: Add and Subtract Fractions (Supporting)

### Print Formatted Materials

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Student Task Statements | docx | |

Lesson Cover Page | docx | |

Cool Down | Log In | |

Teacher Guide | Log In | |

Teacher Presentation Materials | docx | |

Blackline Masters | zip |