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Torner, Gunter – International Group for the Psychology of Mathematics Education, 2003
To probe beyond declarative knowledge about real numbers in secondary school, the authors interviewed students in Grades 9, 10 and 12. The main question seems to be whether the length of a decimal expansion is "indefinite" or "infinite." It blurs the mental representation of rational numbers as well. (Contains 3 footnotes.) [For complete…
Descriptors: Numbers, Grade 9, Cognitive Processes, Case Studies