An attractive and engaging full-colour calendar, ideal as a gift for your colleagues, student prizes, and as a thought-provoking mathematical addition to your classroom.
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> Student activities
> National Maths Day
> National Maths Day 2014
> The missing square
Cut this triangle into pieces and reassemble it.
Why is there a missing square?
You can download a template of the triangle.
Stuck? Look at the hypotenuse!