1968 first published
III · Science

The relative effectiveness of two methods of instruction in teaching the classificational concepts of physical and chemical change to elementary school children

Subjects Chemistry · Study and teaching (Elementary)
Language ENG
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The relative effectiveness of two methods of instruction in teaching the classificational concepts of physical and chemical change to elementary school children, written by Alan M. Voelker, is now in the public domain and available here for free download. this title joins thousands of works in our science collection.

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