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Phillips, E. Ray; Kane, Robert B. – Journal for Research in Mathematics Education, 1973
Seven forms of a programmed booklet based on an eleven-level hierarchy for addition of fractions were developed. One hundred forty-two fourth graders were randomly assigned to treatments; achievement, transfer, retention, and time were compared. No treatment was consistently superior, but developing sequences from hierarchies validated by test…
Descriptors: Elementary School Mathematics, Fractions, Learning Theories, Mathematics Education