教学主体的改变。素质教育要求学习的主体是学生，教师是教学活动的设计者、组织者和咨询者。化学课是一门实践性、应用性很强的基础课程，教学过程中要紧紧抓住教学主体的改变这一关键，把学生作为学习的主体，自己作为学生学习过程的组织者、管理者，有效地调动学生的学... Changes in the subject of teaching. Quality education requires students to study, and teachers are designers, organizers, and consultants of teaching activities. Chemistry class is a practical and highly applied basic course. In the teaching process, it is necessary to firmly grasp the key to the change of the teaching subject. Students should be regarded as the main body of learning, and they should be the organizers and managers of the student learning process. Effectively mobilize students’ learning...