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Lockwood, Elise; Purdy, Branwen – International Journal of Research in Undergraduate Mathematics Education, 2020
The multiplication principle (MP) is a fundamental aspect of combinatorial enumeration. In an effort to better understand students' reasoning about the MP, we had two undergraduate students reinvent a statement of the MP in a teaching experiment. In this paper, we adopt an actor-oriented perspective (Lobato, "Educational Researcher,"…
Descriptors: Multiplication, Mathematics Skills, Thinking Skills, Undergraduate Students
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Cantlon, Jessica; Fink, Rebecca; Safford, Kelley; Brannon, Elizabeth M. – Developmental Science, 2007
Do preschool children appreciate numerical value as an abstract property of a set of objects? We tested the influence of stimulus features such as size, shape, and color on preschool children's developing nonverbal numerical abilities. Children between 3 and 5 years of age were tested on their ability to estimate number when the sizes, shapes, and…
Descriptors: Preschool Children, Number Concepts, Objective Tests, Serial Ordering