高中历史课该讲到什么程度,是我讲《1787年宪法》时产生的疑问并思考至今。讲本课之前,我通过网络参考了很多老师的教学设计和课堂实录,有的老师给学生补充了大量课外资料,课堂容量很大。我认为这种思路是对的,在高中课堂上拓宽学生的视野非常有必要,毕竟课本内容有限,通过课内知识拓展课外知识是有效的学习方法。新课程改革要求用课本来教,并不只是教课本,这就要求教师根据学生学习情况灵活补充或删减内容。但是教师补充内容时会遇到这样的问题:学 The extent to which the high school history class should be mentioned is the question I raised when I spoke about the Constitution of 1787 and has been thinking so far. Before I talk about this lesson, I have consulted many teachers’ teaching designs and classroom transcripts through the internet. Some teachers have added a large amount of extra-curricular information to students and the classroom has a large capacity. I think this idea is correct. It is very necessary to broaden students’ horizons in high school classrooms. After all, the content of textbooks is limited. Developing extra-curricular knowledge through in-class knowledge is an effective way to learn. The new curriculum reform requires textbooks to teach, not just teaching textbooks, which requires teachers to flexibly add or subtract content based on student learning. However, when teachers add content, they encounter such problems: learning