教改的目的,在于实现教育过程的优化。即让师生在短时间内获取良好的教育效益,从而大面积提高教育质量。但目前高中历史教学仍然没有从根本上改变“费时不少,成效甚微”的状况。究其原因,主要是在中学历史课堂教育中存在着较大的随意性。课堂上之所以 The purpose of education reform is to optimize the educational process. That is, teachers and students can obtain good educational benefits in a short period of time, thereby greatly improving the quality of education. However, the current history teaching in high schools still does not fundamentally change the status of “a lot of time and little effect”. The reason is mainly that there is a large degree of randomness in the history classroom education in middle schools. The reason in class