Engaging Mathematics for all learners Curved fold
Folding again... and again � A4 sheet of paper � Draw a small dot about 2.5cm/1inch from the edge. Fold such that edge goes through the dot. � Do it many times in different ways, making very good creases. � Which shape is being described?
Folding again � It looks like a parabola. Is it really a parabola? How can we check? � What is a parabola? � What are the uses of parabolae in the world?
Let � s do it again... Show parabola.html
What is a parabola? Show parabola_with_distance.html
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