The purpose of this lesson is for students to recognize that different shapes cover different amounts of space.
In grade 2, students estimated, measured, and compared lengths using standard units. They learned how the length of the unit affects measurements.
This lesson introduces the concept of area as students compare the size of different shapes. Students consider what it means for two-dimensional shapes to be larger or cover more space. They measure and describe relative area with increasing precision as they participate in the activities in this lesson.
Give students access to pattern blocks and scissors during the cool-down.
- Action and Expression
Activity 1: Compare Shapes
- Describe the relative size of plane figures in their own language.
- Let’s compare the size of shapes.
- Each group of 2 needs at least 2 hexagons and trapezoids, 4 squares and rhombuses, and 8 triangles.
|Activity 1||15 min|
|Activity 2||20 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
What part of the lesson went really well today in terms of students learning? What did you do that made that part go well?
- Can You Build It? (3–5), Stage 1: Rectangles (Addressing)
- Five in a Row: Multiplication (3–5), Stage 1: Factors 1–5 and 10 (Supporting)
Print Formatted Materials
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