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Warburton, Jacqueline W.	1

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The Pythagorean Theorem on an Isometric Geoboard.

Peer reviewed

Hirstein, 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

A "Friend" in Need.

Peer reviewed

Warburton, 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