# Lesson 11

Historias de seda para saris: Collares y pulseras

### Lesson Purpose

The purpose of this lesson is for students to solve Take From story problems within 100 in the context of length.

### Lesson Narrative

In previous lessons, students learned how to measure lengths using different units of measure. In this lesson, students solve Take From problems involving length measured in inches. They use the context of length to make sense of tape diagrams that represent the part-part-whole relationships between the quantities in each story (MP2). They also continue to practice adding and subtracting within 100 with and without decomposing a ten.

- Representation

- MLR8

Activity 1: Collares de cinta de seda para sari

### Learning Goals

Teacher Facing

- Solve one-step story problems about length within 100.

### Student Facing

- Resolvamos problemas-historia sobre longitud.

### Required Materials

Materials to Gather

### Required Preparation

### 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

In previous lessons, students used tape diagrams to represent Compare problems. How did you see students use the structure of part-part-whole tape diagrams to make sense of Take From problems? What connections did you hear students make between the tape diagrams and the measurement context?

### Suggested Centers

- Capture Squares (1–3), Stage 4: Subtract within 20 (Supporting)
- Math Stories (K–2), Stage 5: Tape Diagrams (Supporting)