In previous lessons, students learned how to compare and describe shapes using geometric attributes. In this lesson, students analyze examples and non-examples of rectangles, rhombuses, and squares in order to identify their defining attributes. As they discern and describe features that define these quadrilaterals, students practice looking for structure (MP7) and communicating with precision (MP6).
Throughout the lesson, offer rulers to students if needed to determine if sides have the same length.
Activity 1: What Makes These Shapes So?
- Identify attributes of rhombuses, rectangles, and squares.
- Let’s find out what makes rectangles, rhombuses, and squares what they are.
- Create a chart with labels showing a rectangle, rhombus, and square for the lesson synthesis.
|Activity 1||35 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
- Picture Books (K–5), Stage 3: Find Shapes (Addressing)
- Which One? (K–5), Stage 4: Grade 3 Shapes (Addressing)
Print Formatted Materials
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