Engaging Mathematics for all learners Curved fold Folding again... - PowerPoint PPT Presentation
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
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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