化学新课程理念的有效性强调化学学习是一个主动建构知识、发展能力、形成正确的情感态度与价值观的过程。心理研究表明,初中生对知识的理解、发展和深化,在掌握新知识的过程中所起的作用日益增长,指导学生独立学习的因素也越来越多。新课程课改理念的宗旨也要求教师在 The effectiveness of the new chemistry concept emphasizes that chemistry learning is a process of constructing knowledge, developing abilities, and forming correct emotional attitudes and values. Psychological research shows that the junior middle school students' understanding, development and deepening of knowledge, their role in mastering new knowledge are increasing day by day. There are also more and more factors guiding their independent study. The concept of the new curriculum curriculum reform also requires teachers