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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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The Problem-Solving Cycle: A Model to Support the Development of Teachers' Professional Knowledge
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Koellner, Karen; Jacobs, Jennifer; Borko, Hilda; Schneider, Craig; Pittman, Mary E.; Eiteljorg, Eric; Bunning, Kim; Frykholm, Jeffrey – Mathematical Thinking and Learning: An International Journal, 2007
This article focuses on the Problem-Solving Cycle (PSC), a model of professional development designed to assist teachers in supporting their students' mathematical reasoning. Each PSC is a series of three interrelated workshops in which teachers share a common mathematical and pedagogical experience, organized around a rich mathematical task.…
Descriptors: Problem Solving, Workshops, Professional Development, Pedagogical Content Knowledge
A Framework for Understanding and Cultivating the Transition from Arithmetic to Algebraic Reasoning
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Nathan, Mitchell J.; Koellner, Karen – Mathematical Thinking and Learning: An International Journal, 2007
Algebraic reasoning stands as a formidable gatekeeper for students in their efforts to progress in mathematics and science, and to obtain economic opportunities (Ladson-Billings, 1998; RAND, 2003). Currently, mathematics education research has focused on algebra in order to provide access and opportunities for more students. There is now a growing…
Descriptors: Mathematics Education, Classrooms, Mathematics Teachers, Economic Opportunities