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Chesney, Dana L.; McNeil, Nicole M. – Journal of Problem Solving, 2014
Many children in the U.S. initially come to understand the equal sign operationally, as a symbol meaning "add up the numbers" rather than relationally, as an indication that the two sides of an equation share a common value. According to a change-resistance account (McNeil & Alibali, 2005b), children's operational ways of thinking…
Descriptors: Thinking Skills, Arithmetic, Undergraduate Students, Interference (Learning)