Grade 2 · Math · Unit 12 of 13
Shapes
Sides, corners and faces
What your child practises
Describing shapes by their sides, corners (vertices) and faces, and spotting 3D shapes in real life.
Nunavut Curriculum approved guide: Alberta Mathematics K–9 (2007), Shape and Space · sorting and describing 2-D shapes and 3-D objects
How we explain it
Children can open this short lesson before they practise.
- 2D shapes are flat. 3D shapes take up space.
- Faces are the flat sides of a 3D shape.
- Edges are where faces meet. Vertices are corners.
Example: How many flat faces does a cube have? A cube is like a dice. It has a face on each side: 6. Answer: 6
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Which one is a hexagon?
- rectangle
- hexagon
- pentagon
hexagon
Hint: A hexagon has 6 sides.
Question 2
Which 3D shape has no flat faces at all?
- cylinder
- sphere
- cube
sphere
Hint: A sphere is round all over, like a ball. It has no flat faces.
Question 3
A rectangle has 4 sides. How many are long sides?
- 4
- 1
- 2
2
Hint: A rectangle has 2 long sides and 2 short sides.
Question 4
A dice is shaped like a…
🎲- cone
- sphere
- cube
cube
Hint: Think about the faces. Is it round all over, or does it have flat faces?
Question 5
How many flat faces does a cube have?
- 6
- 4
- 10
6
Hint: A cube has a top, a bottom and 4 sides. 1 + 1 + 4 = 6 faces.
Question 6
How many sides does this shape have?
- 7
- 4
- 8
4
Hint: Touch each straight side and count. A rectangle has 4 sides.