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There are lots of answers to this problem, depending on what questions you choose to ask.
Have a go yourself, and if you discover anything interesting, e-mail us to tell us what you've done! Please don't worry that your solution is not "complete" - we'd like to hear about anything you have tried. Teachers - you might like to send in a summary of your children's work.
Room Doubling
Age 7 to 11
Challenge Level 
There are lots of answers to this problem, depending on what questions you choose to ask.
Have a go yourself, and if you discover anything interesting, e-mail us to tell us what you've done! Please don't worry that your solution is not "complete" - we'd like to hear about anything you have tried. Teachers - you might like to send in a summary of your children's work.
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Geoboards
This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.
