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| Hirstein, James J. | 1 |
| Pedersen, Jean J. | 1 |
| Pinker, Aron | 1 |
| Rachlin, Sidney L. | 1 |
| Warburton, Jacqueline W. | 1 |
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| Guides - General | 4 |
| Journal Articles | 4 |
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Peer reviewedPinker, Aron – Mathematics Teacher, 1980
Archimedes viewed the method of centroids as a valuable tool for intuitive discoveries. This article presents several uses of this technique and discusses how the method of centroids could be used in secondary schools. (Author/MK)
Descriptors: Geometric Concepts, Geometry, Mathematics Curriculum, Mathematics Instruction
Peer reviewedHirstein, James J.; Rachlin, Sidney L. – Mathematics Teacher, 1980
A system of area measurement developed for the isometric geoboard is used to justify some relationships that are often proved using square units of area. (Author/MK)
Descriptors: Geometric Concepts, Geometry, Manipulative Materials, Mathematics Instruction
Peer reviewedPedersen, Jean J. – Two-Year College Mathematics Journal, 1980
A question posed by Euler is considered: How can polyhedra be classified so that the results is in some way analogous to the simple classification of polygons according to the number of their sides? (MK)
Descriptors: Classification, Geometric Concepts, Higher Education, Mathematics Education
Peer reviewedWarburton, Jacqueline W. – Arithmetic Teacher, 1980
Mnemonic devices to aid in the teaching of perimeter and circumference are suggested. (MK)
Descriptors: Elementary School Mathematics, Elementary Secondary Education, Geometric Concepts, Mathematics Curriculum
