Impact of materials on rural middle school students' understanding of science concepts
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2009 ◽
Vol 79
(2)
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pp. 58-66
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2019 ◽
Vol Volume 8
(Volume 8 Issue 3)
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pp. 14-22
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2021 ◽
2019 ◽
Vol 5
(4)
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pp. 72
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