ERIC Number: EJ262254
Record Type: CIJE
Publication Date: 1982-Apr
Reference Count: 0
The Multiplication of Signed Numbers.
Zlot, William; Roberts, Ralph E.
Mathematics Teacher, v75 n4 p302-04 Apr 1982
Certain properties of lenses provide a physical model of the mathematical concepts of multiplication of integral numbers and of similarity transformations in geometry. Further, they can provide a realistic concrete representation for rules governing multiplication of signed numbers. Suggestions for problems and classroom demonstrations involving lenses are provided. (MP)
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Authoring Institution: N/A