一、教材分析本节课讲解燃烧的条件及灭火的原理,是初中阶段的一个教学重点.本节通过创设问题情景→学生从生产生活实际发现和提出问题→老师引导学生设计解决问题的方案→学生亲自实施探究方案→总结归纳形成结论的方法来组织教学.二、教学目标使学生认识燃烧的条件,知道灭火的简单原理和方法,知道遭遇火灾时如何自救,增强消防安全意识.通过对燃烧条件、灭火原理的探究活动,进一步使学生认识和体验科学探究的过程,初步学会用探究的方法学习化学.能用化学科学知识解释日常生活中某些燃烧、灭火的现象和原因.三、教学重点与难点 First, the textbook analysis This lesson to explain the burning conditions and the principle of fire, is a teaching focus of junior high school.This section through the creation of the problem scene → students actually found and put forward from the production and life problems → teachers guide students to design solutions to the problem → The students personally implement the inquiry program → summarize the method of forming the conclusion to organize teaching.Second, the teaching objectives to enable students to understand the burning conditions, know the simple principles and methods of fire fighting, know how to save themselves in the event of a fire and enhance fire safety awareness.By burning Conditions, the principle of fire exploration activities to further enable students to understand and experience the process of scientific inquiry, and initially learn to use the method of inquiry to learn chemistry can use chemical science knowledge to explain some of the daily life of the phenomenon of burning and extinguishing fire and the reasons. Focus and difficulty