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Todd, Robert M., Ed.; Teates, Thomas G., Ed. – School Science and Mathematics, 1978
The development of square units for area and cube units for volume is discussed with emphasis that switching focus from one physical property to another is involved as opposed to simply multiplying units. (MN)
Descriptors: Activity Units, Elementary Secondary Education, Geometry, History
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Kavett, Hyman; Kavett, Phyllis F. – School Science and Mathematics, 1978
Some misconceptions about "squares" encountered among college students as they attempt to master appropriate subject matter in preparation for teaching elementary grades are presented. (MN)
Descriptors: Activity Units, Elementary School Teachers, Error Patterns, Geometry