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The effect of amplified elementary science reading materials upon the comprehension of upper grade elementary school children /Hall, Carolyn Irwin January 1973 (has links)
No description available.
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An Analysis of Elementary Science Material Included in Certain Courses of Study and Text BooksMaurice, Katherine 08 1900 (has links)
The purpose of this study is to assess the contribution of elementary science to the curriculum. The finding of the investigation summarized in table
form.
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