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新课程实验课题的选择和内容设计与传统教材相比有了较大改变,不仅不再区分哪些是学生实验、哪些是教师演示实验,还增加了实验探究活动,以便使学生在学习知识的过程中体验和感受知识形成的过程、学习科学研究的方法,同时也给教师提供了自主设计实验的广阔空间。经过一段时间的新课程教学实践,我们认为合理地使用对比实验在促进学生掌握各类化学知识、强化知识的形成过程、深入理解和掌握化学概念、实现在认识上的发展等方面效果显著。
The choice of new curriculum experimental topics and content design and the traditional textbooks have been greatly changed, not only no longer distinguish between what the students experiment, which is the teacher demonstration experiment, but also increased the experimental exploration activities in order to enable students to learn the process of knowledge In the process of experience and feel of knowledge formation, learning methods of scientific research, but also to provide teachers with a vast space for independent design experiments. After a period of teaching practice of new courses, we think that using comparative experiments reasonably can promote students’ mastery of various kinds of chemical knowledge, strengthen the formation of knowledge, deeply understand and grasp the concept of chemistry, and realize the development in cognition.