一、问题的提出在实际教学的过程中,教师对教材例习题的处理大都是简单的、表面的,对教材例习题“二次开发”的意识不强,在备课中不能对例题、习题进行深层次地挖掘、拓展、再创造,在授课时也往往出现一笔带过、草草了事的教学现状。而教材例习题的“二次开发”能促使学生的学习方式由“重结论轻过程”向“过程与结果”并重的方向发展,使学生挖掘隐含问题的本质属性,从 First, the problem raised In the actual teaching process, teachers are mostly simple, superficial treatment of textbook exercises on the textbook exercises “secondary development ” awareness is not strong, can not be prepared in the lesson preparation, Exercises Deep excavation, development, re-creation, often also appeared in teaching a passing, hastily teaching status quo. The “secondary development” of the textbook examples can encourage the students to learn from the “re-conclusion light process” to the “process and result” in the same direction, so that students dig the essential attributes of implicit problems, From