新课程改革的核心思想是让学生成为学习活动的主体,做自己的主人。这就要求教师在课堂之上将更多的时间交给学生进行自主的探究,而初中生的个性是活泼的,思维是广阔的,所以高效课堂的评价的重要标准就是学生探究的有效性.这就要求教师在课前要针对课堂内容进行充分的准备和设计。笔者结合教学实际进行反思,认为要设计好初中化学优质高效的课堂活动,可以从以下几点入手:一、设计实验性课堂活动,促进学生参与实验是化学学科的重要基础之一.一直到初三,学生们 The core idea of ​​the new curriculum reform is to make students become the main body of learning activities, to be their masters. This requires teachers in the classroom will be more time to give students autonomous exploration, and junior high school students personality is lively, thinking is broad, so an important criterion for efficient classroom evaluation is the effectiveness of student inquiry. This requires teachers to be fully prepared for the classroom content and design. The author carries on the reflection with the teaching reality, thinks that should design the junior middle school chemistry high quality classroom activity, may start from the following several points: First, designs the experimental classroom activity, promotes the student to participate in the experiment is one of the important foundations of the chemistry discipline. Third, the students