The effect of instructional materials on decimal fractions to the conceptual change
| Autor: | Yıldız, Cemalettin, Taşkın, Duygu, Aydın, Mehmet, Köğce, Davut |
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| Zdroj: | In Procedia - Social and Behavioral Sciences 2011 15:899-903 |
| Databáze: | ScienceDirect |
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