Development of In-service Teacher Training Program on Modeling of Chemical Phenomenon

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  • 化学現象のモデル化を取り入れた教員研修プログラムの開発
  • 化学現象のモデル化を取り入れた教員研修プログラムの開発 : 溶解現象についての理解をめざして
  • カガク ゲンショウ ノ モデルカ オ トリイレタ キョウイン ケンシュウ プログラム ノ カイハツ : ヨウカイ ゲンショウ ニ ツイテ ノ リカイ オ メザシテ
  • : A Focus in Promoting Teachers’ Understanding of Dissolution
  • 溶解現象についての理解をめざして

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Abstract

A training program for in-service teacher on modeling chemical phenomenon is presented herein. A theme of the program was the whereabouts of substance’s dissolution, consisting of lectures, experiments, discussions, and a drawing and self-explanation work on models of chemical phenomenon. The program was tried out among 29 in-service elementary school teachers in Tokyo metropolis in June 2009 and August 2011. The results were the following: (1) According to the drawing and self-explanation work of teachers on modeling of a surfactant, it was not easy for the teachers to accurately draw the interaction between hair and hydrophobic group (lipophilic group) of shampoo and rinse. However, half of the teachers described accurate self-explanation based on proper understanding of the interaction by the surfactant. (2) According to a questionnaire given to the teachers after the trial, 70％ and more of the teachers reconstructed their existing images of surfactants and then express vivid the models. Moreover, 60％ or more of them changed their images and understood the surfactant concept. The program enabled the teachers to raise their levels of understanding of the chemical phenomenon through modeling.

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