数学家波利亚曾说过:数学技能就是解题能力——不仅能解决一般的问题,而且能解决需要某种程度的独立思考、判断能力、独创性想象力的问题.学好数学就意味着善于解题.每个学习数学的人都希望自己能迅速而简捷地解决各种数学问题,但实际情况并非如此.常听老师感叹:“这道题我讲了几遍了,学生还是不会 Polya, a mathematician, once said that mathematical skills are problem solving - not only solving general problems but also solving problems that require some degree of independent thinking, judgment, and original imagination. Learning mathematics means Good at solving problems.Everyone learning mathematics hope that they can quickly and easily solve a variety of mathematical problems, but the fact is not the case.I often listen to the teacher laments: ”This question I talked about several times, the students still do not meeting