Sharing Teaching Ideas: Angle Limit: A Paper Folding Investigation
Keyword(s):
In an interesting investigation in the 1997 College Preparatory Mathematics (CPM) Educational Program, students investigate the limit of angle measures formed by repeatedly folding a strip of paper. The idea originally came from Build Your Own Polyhedra (Hilton and Pederson 1994). What makes the investigation interesting is its blending of geometry, algebra, and limits. The activity works best as a discovery lesson in which students work in pairs to follow the steps, measure the angles, and make a table of their observations. They then analyze their results and try to make a conjecture as to what is happening.
1969 ◽
Vol 53
(340)
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pp. 45-50
2013 ◽
Vol 25
(4)
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pp. 531-554
2000 ◽
Vol 22
(3)
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pp. 241-254
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