新课程改革的核心理念,就是为了每一位学生的发展,其中重要的一点是教学活动必须最大限度激活学生已有的知识与经验,倡导自主、合作、探究的学习方式,让学生参与教学,把教学过程变成师生交往、共同发展的互动过程。化学教学,历来被认为是初中教学的瓶颈,教师难教,学生难学。许 The core idea of ​​the new curriculum reform is for the development of every student. The important point is that teaching activities must maximize the students’ existing knowledge and experience, and advocate independent, cooperative, and inquiry learning methods so that students can participate in teaching. The teaching process has become an interactive process of teacher-student interaction and common development. Chemistry teaching has traditionally been regarded as a bottleneck in the teaching of junior high schools. Teachers are difficult to teach and students are difficult to learn. Xu