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Southglade Primary School

'Believe to Achieve'

Maths

Arithmetic Warm Up

Number Sense

To identify regular and irregular polygons

 

What is a polygon?

A polygon is a flat, 2D shape with straight sides that is fully closed.

 

What are regular and irregular polygons?

Regular: All of the sides are equal and the inside angles are equal

Irregular: Does not have equal sides or angles

 

Watch the two videos below, explaining how to identify regular and irregular polygons.

How many regular and irregular polygons can you find in this picture?

Tick the regular polygon in each set

Mild - sort the regular and irregular polygons

Hot - use the Carroll diagram to sort the regular and irregular polygons

Spicy - use the Venn diagram to sort the regular and irregular polygons