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)