The purpose of this optional lesson is for students to use what they know about symmetry and parallel and perpendicular lines to complete or draw figures with those attributes on a grid.
This lesson is optional because it synthesizes all the sorting and classifying students have done up to this point. Grids are given here to encourage students to support students’ parallel lines, perpendicularity, and measurements and to support also thinking about attributes of figures. In upcoming lessons, students will use these lines of reasoning to solve problems about perimeter and angle measurements.
- Action and Expression
- Draw line symmetric figures and identify lines of symmetry.
- Identify two-dimensional figures using an understanding of parallelism and perpendicularity.
- Let’s use what we know about attributes of figures to create drawings.
Materials to Gather
Teacher Reflection Questions
How did you hear students use the vocabulary they have learned in previous lessons as they created and described shapes and figures in today's lesson? What can you do to encourage students to use geometric vocabulary in upcoming lessons and outside of math class?
- Symmetrical Designs (4), Stage 1: Lines of Symmetry (Addressing)
- Compare (1–5), Stage 5: Fractions (Supporting)
- Compare (1–5), Stage 7: Multi-digit Operations (Supporting)
Print Formatted Materials
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