教学必须贯彻面向全体学生的宗旨,由于学生的各方面素质不同,如何面对各个层次的所有学生呢?我们应采取因材施教的原则,设计出不同深度、不同层次的学生《学案》,让学生通过独立思考、同学之间合作探讨、教师巡回指导、学生在动脑、动手中,探讨由旧知识得到新知识的学习方法。 Because of the different qualities of students, how to deal with all the students at all levels? We should adopt the principle of teaching students according to their aptitude and design students’ learning plans of different depth and different levels so as to let students Through independent thinking, discussion of cooperation between students, teachers tour guide, students in the brains, hands-on, explore new knowledge acquired by the old knowledge learning methods.