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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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Vamvakoussi, Xenia; Vosniadou, Stella – Mathematical Thinking and Learning: An International Journal, 2012
In two experiments we explored the instructional value of a cross-domain mapping between "number" and "line" in secondary school students' understanding of density. The first experiment investigated the hypothesis that density would be more accessible to students in a geometrical context (infinitely many points on a straight line segment) compared…
Descriptors: Intervention, Secondary School Students, Numbers, Intervals
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Dierdorp, Adri; Bakker, Arthur; Eijkelhof, Harrie; van Maanen, Jan – Mathematical Thinking and Learning: An International Journal, 2011
To support 11th-grade students' informal inferential reasoning, a teaching and learning strategy was designed based on authentic practices in which professionals use correlation or linear regression. These practices included identifying suitable physical training programmes, dyke monitoring, and the calibration of measurement instruments. The…
Descriptors: Statistical Inference, Abstract Reasoning, Grade 11, Secondary School Students