Sorry about the circle thing …

Sunday 18 January 2026

It’s been great hearing from so many children about how they’ve been picking your brains about how many sides a circle has. I hope the debates haven’t become too heated!

If you want to get your own back, you could get them puzzling over this brain teaser:

How many triangles are there?

I think this unit about perimeter is our favourite maths unit so far.

Help at home: You could watch this video together Area and perimeter and discuss the difference between area and perimeter.

If you’re looking for a more hands-on activity … in class the children have loved measuring the perimeter of various objects and shapes using a piece of string and a ruler. Challenge your child to a competition to see who can find a shape that has a perimeter of 10cm. You could measure and cut the string to the correct length then race each other to see who’s finds an object first.