Starter quiz
- Which shape is Alex describing?
- A
- B ✓
- C
- Which shape has 1 straight side and 1 curved line?
- A ✓
- B
- C
- How many vertices does this shape have?
- 2
- 3
- 4 ✓
- 5
-
- Which line has been sorted correctly?
- A
- B ✓
- C
-
- Tick all the names that are 2D shapes.
- circle ✓
- cube
- triangle ✓
- rectangle ✓
- cone
-
- Look how these shapes have been sorted. Which shape has been placed in the wrong set?
- A
- B
- C ✓
Exit quiz
- Which shape has only 3 straight sides?
- A
- B ✓
- C
- Which shape has only 3 vertices?
- A ✓
- B
- C
- Find the shape that has only 3 vertices.
- A
- B ✓
- C
- Tick all the triangles.
- A
- B ✓
- C
- D ✓
- This shape is not a triangle because __________.
- it has more than 3 sides. ✓
- it has curved lines.
- it has no vertices.
-
- Which shape doesn't belong in this set?
- A ✓
- B
- C
-
Worksheet
Loading worksheet ...
Presentation
Loading presentation ...
Lesson Details
Key learning points
- Use everyday language to describe what different shapes look like.
- Identify shapes that are triangles because they have 3 straight sides and 3 vertices.
- A vertex is the corner of the shape where the sides meet.
Common misconception
Children may mistake some 'triangle-like' shapes as triangles.
Provide cut-outs of shapes to handle and explore. Make a list of properties a triangle must have and discuss them for each cut-out.
Keywords
Sides - The edges of a shape.
Vertices - The corners of a shape where two or more sides meet.
Triangle - A 2D shape with three straight sides and three vertices.
Straight - A line or surface with no curves.
+