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Kodani, Satoki; Koga, Nobuyoshi – Journal of Chemical Education, 2021
A newly developed laboratory learning program for high school chemistry courses is discussed, in which students discover the chemical mechanism governing exothermic phenomena during the reaction between a heating agent, namely, calcium oxide (CaO)--aluminum (Al) mixture, and water. Based on prior knowledge of simple heating agents such as CaO, the…
Descriptors: Science Instruction, Secondary School Science, High School Students, Science Experiments
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Kodani, Satoki; Fukuda, Masahiro; Tsuboi, Yoji; Koga, Nobuyoshi – Journal of Chemical Education, 2020
This study focuses on designing a laboratory learning program for a high school chemistry course in which students could discover the fundamental principles of Hess's law via stepwise inquiry. By exploring the chemical properties of common desiccants, mainly those that were reactive in water, students were introduced to the exothermic reaction of…
Descriptors: Secondary School Science, Chemistry, Science Laboratories, Scientific Principles