Take any triangle and label it ABC with A as the largest angle. Fold the triangle along PQ, PS and QT where the points P and Q are the midpoints of AB and AC and PS and PT are perpendicular to BC.
What do you notice? Why does this happen? Will it happen for all triangles? If so can you prove it? Does the folding experiment tell you anything else about triangles?
The TRI-FOLD Inclusion and Home Learning Guide provides learning activities for all ages from 4 to 18+ on the theme of learning by Paper Folding.
Click here for the TRI-FOLD worksheet.
Click here for the TRI-FOLD Home Learning Guide.
Click here for Notes for Teachers.
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