课堂教学是教师与学生的双边活动,需要师生的共同努力.教师在教学过程中要始终坚持以学生为主体,教师为主导的教学思想.创设良好的教学环境,调动学生的积极性和主观能动性,使课堂充满生机与活力,使学生进入乐学境界.学生也应当端正学习态度,以饱满的热情投入学习状态;努力培养自己的学习兴趣,让自己愉快的学习,主动去配合教师完成教学活动.化学作为初三学生接触的一门新学科,一些学生由开始的学习热情高昂到中途的学习兴趣减弱,直到后来对化学学习感 Classroom teaching is a bilateral activity between teachers and students, which requires the joint efforts of teachers and students.Teachers should always adhere to the teaching philosophy that students are the mainstay and teachers are the dominant teaching methods.Create a good teaching environment to arouse the enthusiasm and initiative of students , So that the classroom is full of vitality and vitality, so that students into the realm of music. Students should also be a positive attitude towards learning, full of enthusiasm into the state of learning; efforts to develop their own learning interests, to make their happy learning, take the initiative to cooperate with teachers to complete the teaching activities As a new subject that junior high school students come into contact with, some students began to learn enthusiasm to the middle of learning interest weakened until later on the sense of chemical learning