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Direct linkWatchorn, Rebecca P. D.; Bisanz, Jeffrey; Fast, Lisa; LeFevre, Jo-Anne; Skwarchuk, Sheri-Lynn; Smith-Chant, Brenda L. – Journal of Cognition and Development, 2014
The principle of "inversion," that a + b - b "must" equal a, is a fundamental property of arithmetic, but many children fail to apply it in symbolic contexts through 10 years of age. We explore three hypotheses relating to the use of inversion that stem from a model proposed by Siegler and Araya (2005). Hypothesis 1 is that…
Descriptors: Mathematics Skills, Skill Development, Computation, Attention Control
Download full textOborne, David William; Hoh, Ying Cheng; Hutchinson, Lydia Ruth – International Journal of Education Policy and Leadership, 2014
This paper reports on two studies that evaluated the statistical validity of the Classroom Learning and Development Questionnaire as a universal screening and early identification observation instrument within the North American context. The Classroom Learning and De-development Questionnaire was first proposed and tested in Hong Kong in the…
Descriptors: Foreign Countries, Check Lists, Student Evaluation, Student Development
