Lesson 7
Make Halves, Thirds, and Fourths
Lesson Purpose
Lesson Narrative
In grade 1, students learned that when a shape is partitioned into 2 equal pieces, the pieces are called halves. They learned that when a shape is partitioned into 4 equal pieces, each piece is called a fourth or a quarter.
In this lesson, students learn that when a shape is partitioned into 3 equal pieces, the pieces are called thirds. They partition shapes into halves, thirds, and fourths. Fourths and quarters should be used interchangeably when discussing 4 equal pieces, so that students are comfortable with both terms.
- Engagement
- MLR8
Activity 2: That’s Not It
Learning Goals
Teacher Facing
- Partition circles and rectangles into halves, thirds, and fourths, and describe the pieces.
Student Facing
- Let’s make halves, thirds, and fourths or quarters.
Required Materials
Materials to Gather
Required Preparation
Activity 1:
- Each student needs 3 identical paper rectangles.
- Students could use 3 sheets of construction paper as their 3 rectangles. To save paper, construction paper could also be pre-cut into equal-size rectangles.
CCSS Standards
Addressing
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
Suggested Centers
- How Are They the Same? (1–5), Stage 2: Grade 2 Shapes (Addressing)
- Which One? (K–5), Stage 3: Grade 2 Shapes (Addressing)
Print Formatted Materials
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Additional Resources
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