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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Ding, Meixia; Li, Xiaobao; Capraro, Mary Margaret; Kulm, Gerald – Investigations in Mathematics Learning, 2012
This study qualitatively explored teachers' responses to doubling errors (e.g., 3/4 x 2 = 6/8) that typically reflect students' difficulties in understanding the "rule" for finding equivalent fractions (e.g., 3/4 x 2/2 = 6/8). Although all teachers claimed to teach for understanding in interviews, their responses varied in terms of effectiveness…
Descriptors: Mathematics, Mathematics Instruction, Teaching Methods, Mathematics Teachers
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Matteson, Shirley; Capraro, Mary Margaret; Capraro, Robert M.; Lincoln, Yvonna S. – Investigations in Mathematics Learning, 2012
Twenty middle grades students were interviewed to gain insights into their reasoning about problem-solving strategies using a Problem Solving Justification Scheme as our theoretical lens and the basis for our analysis. The scheme was modified from the work of Harel and Sowder (1998) making it more broadly applicable and accounting for research…
Descriptors: Problem Solving, Secondary School Mathematics, Mathematics Instruction, Middle Schools