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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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Canadas, Maria C.; Castro, Encarnacion; Castro, Enrique – Electronic Journal of Research in Educational Psychology, 2009
Introduction: We present some aspects of a wider investigation (Canadas, 2007), whose main objective is to describe and characterize inductive reasoning used by Spanish students in years 9 and 10 when they work on problems that involved linear and quadratic sequences. Method: We produced a test composed of six problems with different…
Descriptors: Logical Thinking, Mathematical Models, Spanish, Foreign Countries
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Villegas, Jose L.; Castro, Enrique; Gutierrez, Jose – Electronic Journal of Research in Educational Psychology, 2009
Introduction: Representations play an essential role in mathematical thinking. They favor the understanding of mathematical concepts and stimulate the development of flexible and versatile thinking in problem solving. Here our focus is on their use in optimization problems, a type of problem considered important in mathematics teaching and…
Descriptors: Problem Solving, Knowledge Representation, Mathematical Applications, College Mathematics
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Molina, Marta; Castro, Encarnacion; Castro, Enrique – Electronic Journal of Research in Educational Psychology, 2009
Introduction: Moved by our interest in the curricular proposal of integrating algebraic thinking in elementary mathematics, we analyse the understanding of number sentences of a group of elementary students and its evolution when working on solving open and true/false number sentences. Method: We developed a teaching experiment with a group of…
Descriptors: Mathematical Formulas, Arithmetic, Algebra, Mathematical Concepts