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Ambiguity of the Negative Sign
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Olson, Jo Clay; Cangelosi, Richard; Madrid, Silvia; Cooper, Sandra; Hartter, Beverly – North American Chapter of the International Group for the Psychology of Mathematics Education, 2011
The goal of this study was to understand errors that student make when simplifying exponential expressions. College students enrolled in four college mathematics courses were asked to simplify and compare such expressions. Quantitative analysis identified three persistent errors: interpreting negative bases, negative exponents, and parentheses.…
Descriptors: College Students, College Mathematics, Mathematics Skills, Error Patterns