Making Squares What do you notice?

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Presentation transcript:

Making Squares 12 22 32 42 4 9 What do you notice? Number 12 22 32 42 square 4 9 1- 10 10-20 What do you notice? Can you describe a rule?

Use your rule One of these numbers is a square number. Can you work out which one? How do you know? 1225 236 2047 4863 527 908

Use your rule to solve my problem My square sun terrace has 1296 1m x 1m square slabs. I want to make it a bit bigger. How many new slabs do I need to buy to make my terrace the next possible biggest square? How many slabs will be sun terrace have when I have laid them?

http://www.bbc.co.uk/programmes/b00p693b In Our Time https://www.youtube.com/watch?v=fdK5WOq0AyU Pythagorean Tree