Lesson 10
Represent Volume with Expressions
Lesson Purpose
Lesson Narrative
In previous lessons, students used formulas to find the volume of right rectangular prisms. They also learned to apply these formulas to find the volumes of figures made up of two nonoverlapping right rectangular prisms. In this lesson, students use what they have learned to write and interpret numerical expressions in the context of finding the volume of figures composed of rectangular prisms (MP2).
Students recognize that subtraction can be used to find the volume of figures composed of two nonoverlapping rectangular prisms.
 Action and Expression
 MLR8
Activity 2: Find the Volume in Different Ways
Learning Goals
Teacher Facing
 Write and interpret numerical expressions to represent the volume of a figure decomposed in different ways.
Student Facing
 Let’s write expressions for the volume of figures.
Required Preparation
CCSS Standards
Addressing
Lesson Timeline
Warmup  10 min 
Activity 1  10 min 
Activity 2  25 min 
Lesson Synthesis  10 min 
Cooldown  5 min 
Teacher Reflection Questions
Suggested Centers
 Five in a Row: Multiplication (3–5), Stage 4: Three Factors (Addressing)
 Rolling for Fractions (3–5), Stage 1: Equivalent Fractions (Supporting)
Print Formatted Materials
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Additional Resources
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