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传统化学教学中往往是学生进行内部记忆,理解所学的知识,以教师单向讲解、学生单向被动静听为主。这样的教学活动缺少学生的外部动手活动,缺少师生之间、学生之间的多向交流活动,课堂没有太多的生机和活力,学生更多的是被动地接受知识,没有很高的学习兴趣。实验让学生可以系统全面地理解知识,在动手中进行知识建构,生成自己的认识,不仅能强化学生的知识记忆,而且能提升学生的操作能力。
In traditional chemistry teaching, students often carry out internal memory, understand what they have learned, explain them with one-way teachers, and give priority to passive one-way listening. Such teaching activities lack of external activities of students, lack of multi-directional communication between teachers and students, students, the classroom is not too much vitality and vitality, students are more passive to accept knowledge, not high learning interest. Experiments allow students to systematically understand the knowledge, in the hands of knowledge construction, to generate their own knowledge, not only can enhance students ’knowledge and memory, but also enhance students’ ability to operate.