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Regular and irregular polygons
Drag the shapes into the correct boxes to show whether they are a regular or irregular polygon. Use the ‘Clues’ button to help you. When you are finished, use the ‘Mark’ button to see if you are right.
Discussion points
- What is a polygon?
- What is a regular polygon?
- Can you name some 2-D regular and irregular polygons?
- Is a semi-circle a regular polygon? Why/why not?
Teaching tips:
Stem sentences for this activity:
‘This shape is a regular polygon because ____.’
‘This shape is an irregular polygon because _____.’
Following this, children could use squared maths paper and rulers to draw and label both regular and irregular polygons. For shapes such as regular pentagons/hexagons/octagons etc. it might be useful to have a selection placed out for children to draw around as these are difficult to draw accurately by hand.
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