Grade 2/Geometry
Shape Attributes: Sides and Corners (365)
Look at each shape and answer questions about its sides and corners.
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Quick Tip
Shapes may be rotated or colored differently.
Teacher Resources
Teaching Notes
Focus on precise counting of sides and corners for each shape. Emphasize that sides are line segments and corners are where sides meet.
Vocabulary
Side: A straight line forming part of the shape's edge.
Corner: A point where two sides meet.
Common Mistakes
- Confusing sides and corners/vertices.
- Miscounting due to double-counting or skipping.
- Attributing sides or corners to a circle.
Differentiation
SupportUse physical shape manipulatives to touch and count attributes.
ChallengeCompare attribute counts for multiple shapes simultaneously.
Discussion Questions
- How are the number of sides and corners related in these shapes?
- Can a shape have 3 sides but 4 corners? Why or why not?
- What shape has more sides than a square but fewer than a hexagon?
- How does knowing a shape's attributes help us identify it?
Extension Activities
- Build shapes with sticks.
- Draw shapes with different sides.
- Sort shapes by corners.
Parent Tip
Ask your child to find objects with specific numbers of sides or corners.
Learning Path
Skill Cluster
Geometry and Spatial Reasoning
Estimated Time
15 minutes
Skills Practiced
count sidescount cornersidentify shapes
Prerequisites
- Recognizing basic 2D shapes
- Counting within 10
Next Steps
- Comparing 2D shapes by attributes
- Composing and decomposing 2D shapes
- Comparing Shape Attributes
- Sorting Shapes by Attributes
- Drawing Shapes from Attributes