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ERIC Number: EJ032300
Record Type: Journal
Publication Date: 1970
Pages: N/A
Abstractor: N/A
Reference Count: N/A
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Intellectual Development Beyond Elementary School II: Ratio, A Survey
Karplus, Robert; Peterson, Rita W.
School Science and Mathematics, 70, 9, 813-820, Dec '70
Reports study of 727 metropolitan area children in grades four through twelve to determine ability to apply the concept of proportion. Successful proportional reasoning is not achieved earlier than senior high school. Concludes that a gap exists between science and mathematics curricula and student's reasoning ability. (JM)
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