Counting sides and vertices in a shape
31 October 2026
When your child is learning about shape properties, it's important they can spot the sides and corners (vertices) of a flat shape. This skill helps them describe and compare shapes confidently, which is a key part of early geometry.
Example question
How many sides and vertices does this shape have? (The shape is a pentagon.)
Step 1: Put your finger on one corner of the shape.
Step 2: Say '1' and slide your finger along the first side to the next corner.
Step 3: Tap the next corner and say '2'.
Step 4: Keep moving your finger around the shape, counting each corner, until you come back to where you started.
Step 5: The last number you say is the number of vertices. This is also the number of sides.
The correct answer is: 5 sides and 5 vertices.
After working through this example, your child will know how to count both sides and vertices on any flat shape they see. They are now ready to practise similar questions and build their confidence with shape properties.
