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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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Teachers' and Students' Negotiation Moves When Teachers Scaffold Group Work
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González, Gloriana; DeJarnette, Anna F. – Cognition and Instruction, 2015
Group work has been a main activity recommended by mathematics education reform. We aim at describing the patterns of interaction between teachers and students during group work. We ask: How do teachers scaffold group work during a problem-based lesson? We use data from a problem-based lesson taught in six geometry class periods by two teachers…
Descriptors: Teaching Methods, Groups, Scaffolding (Teaching Technique), Geometry
From Number Lines to Graphs in the Coordinate Plane: Investigating Problem Solving across Mathematical Representations
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Earnest, Darrell – Cognition and Instruction, 2015
This article reports on students' problem-solving approaches across three representations--number lines, coordinate planes, and function graphs--the axes of which conventional mathematics treats in terms of consistent geometric and numeric coordinations. I consider these representations to be a part of a "hierarchical representational…
Descriptors: Problem Solving, Mathematics Instruction, Graphs, Numbers