课程标准要求,初中化学教学的指导思想就是要着力解决好“三个引导”的问题:一是引导学生认识物质世界的变化规律,形成化学基本观念;二是引导学生体验科学探究的过程,启迪学生的科学思维,培养学生的实践能力;三是引导学生认识化学、技术、社会、环境的相互关系,理解科学的本质,提高学生科学素养。一、复习迁移知识,引导学生认识物质变化的规律,形成化学的基本观念世界是物质的,物质是运动的,即物质是变化的。物质在变化的过程中生成了新的有用的物质,对提高人 Curriculum standards require that the guiding ideology of junior high school chemistry teaching be efforts to solve the problem of “three guiding principles”: firstly, to guide students to understand the changing laws of the material world and form the basic concepts of chemistry; and second, to guide students to experience the process of scientific inquiry , Inspire students ’scientific thinking and cultivate students’ practical abilities; third, guide students to understand the interrelationships of chemistry, technology, society and environment, understand the nature of science, and improve their scientific literacy. First, review the transfer of knowledge, guide students to understand the laws of material changes, the formation of the basic concept of chemistry The world is material, material is the movement, that material is change. Material changes in the process of generating new and useful material, to enhance people