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Peer reviewed Peer reviewed
Roe, 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 reviewed Peer reviewed
Thomas, Anne – Mathematics in School, 1974
Descriptors: Discovery Learning, Elementary School Mathematics, Experiential Learning, Instruction
Peer reviewed Peer reviewed
Ranucci, Ernest R. – Mathematics in School, 1973
Different regular-polygon-shaped candles wound with a sheet of paper are cut through obliquely. When the papers are unwound, unique patterns are revealed. Investigation of these patterns leads to the discovery of geometric concepts. (JP)
Descriptors: Congruence, Discovery Learning, Experiential Learning, Geometric Concepts
Peer reviewed Peer reviewed
Jones, C. – Mathematics in School, 1982
An exploration approach with calculators that promotes student investigation and development of mathematical processes and concepts is highlighted. The presentation helps to highlight the enormous potential of calculators to facilitate new and imaginative approaches to certain areas of number work, and shows how student interest is promoted. (MP)
Descriptors: Calculators, Computation, Discovery Learning, Educational Technology