学生做题目时,首先想到的方法或者思路肯定是平时经常练的.只有当这个思路做不下去时才会想别的方法,而这个“别的方法”肯定也是练过的,只是没有第一个思路掌握得那么熟练而已.从来没有见过的方法,一般情况下学生是不会往那个方向上思考的.所以,平时学习中比较重要的方法或知识应 Students to do the topic, the first thought of the method or idea is usually often practiced. Only when this idea can not do anything else will think of other methods, and this “other methods” is certainly practiced, but not The first train of thought mastered so skillfully. Never seen before, under normal circumstances students will not think in that direction. Therefore, the more important in normal learning methods or knowledge should be