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Bolig, John R. – 1972
Described is the Del Mod System, its inception, the fundings associated with it, and its objectives. A number of projects have already been completed and implemented. This monograph describes the evaluations of such projects and of the Del Mod systems-approach to science education. The area of evaluation and the method of data collection (with…
Descriptors: Educational Research, Elementary School Science, Elementary Secondary Education, Evaluation