In previous lessons, students used unit cubes with a side length of 1 unit to determine the volume of right rectangular prisms. In this lesson, the units are now a specific unit of measure. In grade 5, students use words, not exponents, when recording the cubic unit of measure, such as “cubic centimeters (cm),” “cubic feet (ft)” or “cubic inches (in).” The exponents in Grade 5 are limited to powers of 10, which will be addressed in a later unit.
In this lesson, students distinguish between different standard unit measures of volume. They examine the distinction between cubic cm, cubic in, and cubic ft. Throughout the lesson, students share their rationale for choosing a unit to measure specific real-world objects and learn the importance of identifying the unit of measure when finding the volume of an object (MP6).
- Find the volume of rectangular prisms with standard units of measure by multiplying the base times the height or multiplying the length times the width times the height.
- Let’s use different sized cubic units to measure volume.
|Activity 1||10 min|
|Activity 2||25 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
- Five in a Row: Multiplication (3–5), Stage 4: Three Factors (Addressing)
- Capture Squares (1–3), Stage 7: Multiply with 6–9 (Supporting)
Print Formatted Materials
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