1986•Mathematics Teacher Learning and Teaching PK-12Requires access
Microcomputer-Assisted Mathematics: Factoring and Unfactoring
Clark Kimberling
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Abstract
One of the most familiar topics to algebra students is factoring. However, some students who can factor an expression like x2 − 7x + 10 do not fully realize the connections between the numbers −7 and 10 and the numbers 2 and 5 that appear in the factorization (x – 2)(x − 5). They often start with the −7 and 10 and obtain the 2 and 5 more or less by trial and error.