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| Mathematics in School | 2 |
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| Baylis, John | 1 |
| Peace, Nigel | 1 |
| Roe, Iris | 1 |
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Peer reviewedRoe, Iris; Baylis, John – Mathematics in School, 1975
The validity of the formula for the sum of the measures of the interior angles of polygon is explored using non-convex polygons. (SD)
Descriptors: Curriculum, Deduction, Diagrams, Discovery Learning
Peer reviewedPeace, Nigel; And Others – Mathematics in School, 1997
Describes an activity in which geometry and trigonometry are studied using pyramids. Identical model pyramids are constructed from card stock, along with pyramids of different proportions and cuboids to use as controls. Also includes an investigation of some apparently non-scientific claims. (DDR)
Descriptors: Data Analysis, Discovery Learning, Discovery Processes, Experiential Learning
