Relating 2D and 3D Shapes
Students will explore the 2D faces of 3D shapes and how they relate to the overall object.
Key Questions
- Analyze the 2D shapes that make up the faces of a rectangular prism.
- Predict what 2D shape you would see if you traced the bottom of a cone.
- Design a net for a cube using only squares.
Ontario Curriculum Expectations
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
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.
unit plannerMath Unit
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.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
More in Geometry and Spatial Reasoning
Identifying 2D Shapes and Their Attributes
Students will identify and draw shapes based on their attributes (e.g., number of angles, sides, vertices).
2 methodologies
Composing and Decomposing 2D Shapes
Students will combine and break apart 2D shapes to form new shapes.
2 methodologies
Partitioning Shapes into Equal Shares
Students will partition circles and rectangles into two, three, or four equal shares, describing the shares using words like halves, thirds, and fourths.
2 methodologies
Identifying 3D Shapes and Their Attributes
Students will identify 3D shapes (cubes, cones, cylinders, spheres, rectangular prisms) and describe their faces, edges, and vertices.
2 methodologies
Symmetry in Shapes
Students will identify lines of symmetry in 2D shapes.
2 methodologies