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学习数学,不能一叶障目,既要见树木,又要见森林.培养这种眼光和能力,学会推广是有效途径之一.推广就是发现命题背后的更一般命题.同学们可能会问,一个命题的解(证)有时就不易了,还要推广,可谓难上加难.不错,推广并解(证)推广命题确实有难度,但如果你能发现命题的本质解(证)法后,解(证)推广命题可能就没有想象的那样难了,即使推广后的命题一时难以解决,但你能发现和提出问题就是一件非常能提升自己能力的事.所以主动形成“我要推广”的解题意识是数学学习中
Learning mathematics can not be a leaf barrier, both to see the trees, but also to see the forest.To cultivate this vision and ability to learn to promote is an effective way to promote is to find the proposition behind the more general propositions.Students may ask, a proposition Solution (card) Sometimes it is not easy, but also to promote, can be described as harder .To promote the solution (card) promotion proposition is indeed difficult, but if you can find the proposition of the essence of solution (card) method, solution Even if the promoted proposition can not be solved for some time, but you can find out and put forward the question is a matter that can greatly improve our ability, so I take the initiative to form “I want to promote” The problem-solving awareness is in math learning