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By [[author]]王建今, [[author]]Chien-Chin Wang, 王建今 and Chien-Chin Wang


[[abstract]]In order to improve the quality of teachers’ teaching and enhance students’ interest in learning chemistry, we used computer software programs to simulate chemical molecules which were mentioned in chemistry course in senior high to be supplementary teaching material. We also discussed that how this teaching activity influences students’ learning achievements and their attitudes towards and perceptions of the Website. Taking 75 second grade students in a senior high in Taipei for research samples, we divided them into the experimental group and the controlled group according to research design. The research compared their learning achievements, analyzed experimental group’s answering situations in post-exam paper and investigated experimental group’s attitudes and suggestions toward the media through questionnaire. The results of the research were as below: 1.There were distinguished differences between the experimental group and the contrasted group after comparing the grades of post-exam through T test. For those students in experimental group, usages and discussions of molecule models really helped them improve their learning effects. 2.From analyzing students’ answering situations, we discovered that the advantages of learning through using molecule models which were simulated in computer were below: students could compose molecular figures in mind in three-dimensional space and this helps them solve questions, making up for the insufficiency in words and plane media, and avoids them producing incorrect concepts. They could memorize and realize the deep meanings just like through the help from descriptions in words, avoiding reciting in fragments. Also, they could raise their efficiency in dealing with information to gain better learning effect. Students in experimental group had positive attitudes toward the teaching media in this research. They said that the web site transfers abstract symbols to concrete things. Learners could see the figures of molecules, even to move the molecules themselves instead of imagining only. This design really helped students get deeper impression on organic molecules to memorize them. And the learning methods were much more active and interesting to make students pay more attentions on the main points. Students thought that this teaching method was so innovative that they could concentrate on the course and gain the main points easily by soaking in fresh and attractive learning atmosphere.

Topics: 分子模擬, 網路教學, molecular modeling, web-based instruction, [[classification]]39
Year: 2010
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