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Peer reviewedMack, Nancy K. – Journal for Research in Mathematics Education, 1990
Examines the development of students' understandings about fractions during six weeks of instruction. Reports that all students possessed informal knowledge disconnected from their knowledge of fraction symbols and procedures and that knowledge of rote procedures often interfered with students' attempts to build on their informal knowledge.…
Descriptors: Arithmetic, Concept Formation, Concept Teaching, Elementary Education
