Association:an Important Thinking in Mathematical Solution

The purpose of the research into association is to help subjects strengthen the sense of it conscientiously and ponder problems by the laws of it.Mathematical association is the guide for exploring the way of mathematical solution,the bridge for the transformation from subjects designing to conclusion making,the cradle of seeking for good soulution in amathematical solution,and the ladder for upgrading mathematical thinking level.Often applied association in mathematical solution includes similar form association,structure association,inverse association,general association,definition regressing association and specialization association.