教学一直以来都是以教师讲授为主,唯恐学生知识掌握不牢,同一个内容反复讲几次。一节数学课中,大部分时间都是教师在讲解,学生被动地接受。然后,布置作业让学生进行多次练习。大部分学生对基础知识掌握得很扎实、很牢固。但考试时遇到一些变化的题型,就不会做了。看到学生成绩不高,老师就抱怨:“老师讲了几遍的题目,你怎么还不会做呢?”比如在教学《圆的面积》这一节课时,老师拿着教具在讲台上演示,让学生观察圆的模型转化成近似 Teaching has always been based mainly on teacher teaching, lest students have a weak knowledge of the same content repeated several times. A math class, most of the time teachers are explaining, the students passively accepted. Then, assign assignments for students to practice many times. Most students have a solid, solid foundation of knowledge. However, the examination encountered some changes in the type of question, it will not do. See the student performance is not high, the teacher complained: “teacher talked about the topic several times, how can you not do? ” For example, in the teaching of “round area” this class, the teacher holding aids in the podium On the presentation, let the students observe the model of the circle into approximation