Polygons introduction

A complete lesson on types of polygon, although it goes well beyond the basic classifications of regular and irregular. This lesson gives a flavour of how my resources have been upgraded since I started charging.

Activities included:

Starter:
A nice kinesthetic puzzle, where pupils position two triangles to find as many different shapes as they can.

Main:

• A slide of examples and non-examples of polygons, for pupils to consider before offering a definition of a polygon.
• A slide showing examples of different types of quadrilateral . Not the usual split of square, rectangle, etc, but concave, convex, equilateral, equiangular, regular, cyclic and simple. This may seem ‘hard’, but I think it is good to show pupils that even simple ideas can have interesting variations.
• A prompt for pupils to try and draw pentagons that fit these types, with some follow-up questions.
• A brief mention of star polygons (see my other resources for a complete lesson on this).
• Slides showing different irregular and regular polygons, together with some follow-up questions.
• Two Venn diagram activities, where pupils try to find polygons that fit different criteria. This could be extended with pupils creating their own Venn diagrams using criteria of their choice. Could make a nice display.

Plenary:
A table summarising the names of shapes they need to learn, with a prompt to make an educated guess of the names of 13, 14 and 15 sided shapes.

Minimal printing needed and answers included where applicable.
I have also added key questions and suggested extensions in the notes boxes.

Please review if you buy as any feedback is very much appreciated.