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一、问题的提出在初中数学课堂教学中,面对一个数学问题选择教学方法时,教师常常会纠结于这样的两难:是先让学生独立思考解决问题呢?还是直接小组合作讨论寻求解法;是课前布置预习,给予学生相当的充分时间思考呢?还是在模拟考试(或研究)情境下直接让学生限时思考问题;是为了让学生较容易地接受解决问题的方法,采用化一大步为几小步而设计一些阶梯式的辅助题,让学生由易到难依次解决,最后掌握解决问题的方法,还是先让
First, the problem raised In junior high school mathematics classroom teaching, the face of a mathematical problem of choice of teaching methods, teachers often tangled in such a dilemma: First let students think independently to solve the problem? Or direct the group to discuss the solution to the problem; Pre-class layout preview, giving students considerable time to think about it? Or in the mock examinations (or research) context directly allow students to think about the problem time limit is to allow students to more easily accept the problem-solving methods, the use of a big step toward A few small steps and the design of some auxiliary ladder questions, so that students from easy to difficult in turn solve the final problem-solving methods to master, or let let