一、问题的提出从初中进入高中是求学历程的转折点和关键点。进入高中后,学习登上了一个新的台阶,学习科目较多,新的教学内容、新的教学方式、新的学习方式,在同学们面前摆下一道道难关,很多同学由于受到初中学法及其它因素的影响,往往无法很好地适应高中化学的学习,容易造成学习成绩的较大分化。有的同学在初中时各科学习成绩都挺好,一旦进入高中后,就明显感觉内容多、习题难做, First, the issue put forward to enter high school from junior high school is the turning point and key points in school history. After entering high school, learning boarded a new level, more subjects, new teaching content, new teaching methods, new learning styles, put in front of students in a difficult road, many students due to junior high school law And other factors, often can not adapt well to high school chemistry, easily lead to a greater division of academic performance. Some students in junior high school subjects study grades are very good, once in high school, it is clear that the content is more difficult to do exercises,