Year 3 Maths — Shapes and symmetry
Count the sides and corners of a shape, name the parts of a solid, find a line of symmetry, and cover a shape with smaller shapes.
Name: ________________________
Before you start
Here is a box drawn as a solid. Find a face, an edge and a corner on it.
- 1. A face
- 2. An edge
- 3. A corner
A corner is the one place where three edges come together at a point.
Take a tile from the tray and lay it on the hexagon. Cover the whole hexagon with one kind of tile, then clear it and try another kind.
- Triangle, covers 1 triangle
- Rhombus, covers 2 triangles
- Half-hexagon, covers 3 triangles
- Hexagon, covers 6 triangles
Six triangles, three rhombuses or two half-hexagons — every one of them fills the very same space.
1.Put these shapes in order, fewest sides first.
- Triangle
- Hexagon
- Square
- Pentagon
2.Cover this shape completely, with no tile hanging over the edge.
Draw lines inside the shape to show how the tiles below cover it.
- Triangle, covers 1 triangle
- Hexagon, covers 6 triangles
3.Half of this hexagon is already covered. Cover the rest of it.
Draw lines inside the shape to show how the tiles below cover it.
- Triangle, covers 1 triangle
- Rhombus, covers 2 triangles
- Half-hexagon, covers 3 triangles
4.Match each shape to how many sides it has.
- Triangle
- Square
- Pentagon
- Hexagon
- 5
- 4
- 6
- 3
5.Sort each shape by whether it is flat or solid.
Groups: Flat shape · Solid shape
- Circle
- Sphere
- Square
- Cube
6.How many edges does a cube have?
7.How many rhombuses does it take to cover this hexagon exactly?
Work out how many of the tile below cover the shape, and write the number.
- Rhombus, covers 2 triangles
Number of tiles:
8.How many sides does a rectangle have?
Answer key — Year 3 Maths — Shapes and symmetry
- 1. 1. Triangle 2. Square 3. Pentagon 4. Hexagon
- 2. any covering — e.g. 1 hexagon + 1 triangle
- 3. any covering — e.g. 1 half-hexagon
- 4. Triangle → 3; Square → 4; Pentagon → 5; Hexagon → 6
- 5. Square → Flat shape; Cube → Solid shape; Circle → Flat shape; Sphere → Solid shape
- 6. 12
- 7. 3 rhombuses
- 8. 4