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Download full textMcGregor, John D. – 1978
An instructional program based on a learning hierarchy and involving the addition of fractions was presented to fourth grade students in a pretest - posttest design. The results of the tests were analyzed using both Walbesser's and White's techniques for validation. There was sufficient disagreement in the results to prevent a conclusion of…
Descriptors: Basic Skills, Curriculum Development, Intermediate Grades, Learning Modules
