Partitioning with Volume
Est. Class Sessions: 1
Students write number sentences to describe the different ways to partition a number of cubes in a building plan. Applying the commutative and associative properties of addition, they write true number statements that show how the various ways of partitioning the cubes still result in the same total volume.
Content in this Lesson
- Recognizing that different partitions of a number have the same total (e.g., 50 + 4 = 40 + 14) [E1].
- Solving addition problems (e.g., part-whole, join) involving volume [E2].
- Applying the properties of addition (e.g., commutative, associative) to write number sentences that represent volume [E3].
- Count and add cubic units to find volume [E8].
Materials for Students
| Daily Practice and Problems | Lesson | Homework | Assessment | ||
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Student Books |
Student Activity Book |
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Teacher Resources |
Teacher Guide - digital |
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Supplies for Students
about 40 connecting cubes
desk number line (0–100), optional
Materials for the Teacher
Display of Many Ways to Say It (Student Activity Book) Pages 543–544
Display of Contessa Is Confused Master (Teacher Guide)
Unit 10 Assessment Record
Unit 10 Individual Assessment Record
Sample building. See Materials Preparation.
Materials Preparation
Build Sample Building. Build the 14-cube building as seen in Figure 1.
Figure 1: Building plan for sample 14-cube building
Assessment in this Lesson
| Assessment | Expectation Assessed |
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Putting It All Together with Feedback Box Student Activity Book Pages 547–548 |
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