Lesson 15
Length Measurements
Lesson Purpose
The purpose of this lesson is for students to apply their understanding of multiplicative comparison and unit conversion to solve multi-step problems about distances and lengths.
Lesson Narrative
Previously, students reasoned multiplicatively about measurements and performed unit conversions to solve problems in the context of mass and capacity. In this lesson, they do the same in the context of length measurements, using familiar customary units from earlier grades (yards, feet, and inches).
- Action and Expression
- MLR7
Activity 2: Stone Towers
Learning Goals
Teacher Facing
- Use multiplicative comparison and unit conversion to solve multi-step problems about length (in yards, feet, inches).
Student Facing
- Let’s solve problems about distances and lengths.
Required Materials
Materials to Gather
Required Preparation
CCSS Standards
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
What misconceptions came to light in today’s lesson? What strategies do you have for showing students that misconceptions are valued as a way to further everyone’s understanding?
Suggested Centers
- Can You Draw It? (1–5), Stage 4: Area and Perimeter (Supporting)
- Rectangle Rumble (3–5), Stage 3: Factors 1–10 (Supporting)