Circle Drawing Champion

A teacher draws a perfect freehand circle of diameter one metre in less than a second.

Time: 1:18

 

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Magic Square

Magic Square

Each row, column and diagonal should produce the same sum. So far this activity has been accessed 25507 times and 809 people have earned a Transum Trophy for completing it.

Teacher: Click the play button in the centre of the video screen above. In the bottom right corner of the video (when you cursor moves over the playing video) is a broken square button which opens full-screen mode.

Circle Drawing Champion

A teacher draws a perfect freehand circle of diameter one metre in less than a second.

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