Produced by the Maths Magic project, Circles with Whole Number Points provides teacher inspiration for investigating equations of a circle and Pythagoras’ theorem. The student task sheet refers to the use of Geogebra. The task consists of drawing circle, centre (0,0), radius 5 and finding all the points with integer coordinates through which the circle passes. The activity can be extended by altering the radius of the circle or moving the centre of the circle from the origin.

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