Symmetry in Shapes
Identifying and creating lines of symmetry in two-dimensional shapes.
Key Questions
- Explain what makes a shape symmetrical.
- Construct a shape that has at least one line of symmetry.
- Compare shapes that have symmetry to shapes that do not.
Ontario Curriculum Expectations
Suggested Methodologies
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Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
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Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
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More in Geometry and Spatial Reasoning
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Recognizing and naming common two-dimensional shapes (squares, circles, triangles, rectangles, hexagons).
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Distinguishing between defining attributes (e.g., number of sides, vertices) and non-defining attributes (e.g., color, size, orientation) of 2D shapes.
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Identifying 3D Shapes
Recognizing and naming common three-dimensional shapes (cubes, cones, cylinders, spheres, rectangular prisms).
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Distinguishing between defining attributes (e.g., faces, edges, vertices) and non-defining attributes of 3D shapes.
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Composing 2D Shapes
Combining smaller shapes to create new composite shapes (e.g., two triangles make a rectangle).
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