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Estimation Performance and Strategy Use of Mexican 5th and 8th Grade Student Sample.
Peer reviewed Peer reviewed
Reys, Barbara J.; And Others – Educational Studies in Mathematics, 1991
A study of 255 fifth graders and 177 eighth graders from 12 randomly chosen Mexican schools was conducted to identify and characterize the students' computational estimation skills and strategies. Data from computational estimation tests and selected interviews revealed that Mexican students employed general estimation processes similar to U.S.…
Descriptors: Cognitive Measurement, Cognitive Processes, Cognitive Tests, Elementary Secondary Education
The Conceptual Evolution of Actual Mathematical Infinity.
Peer reviewed Peer reviewed
Moreno A., Luis E.; Waldegg, Guillermina – Educational Studies in Mathematics, 1991
Analyzed are the different stages in the conceptual evolution of infinity as developed historically through the work of Bolzano and Cantor. Results of a study of 18 to 20 year old's concept of infinity prior to instruction produced aspects of the passage between conceptual levels of infinity. (MDH)
Descriptors: Cognitive Development, Cognitive Measurement, Cognitive Tests, Concept Formation