Exemple talk about fold kind a kind of method that the problem handles -- the law that cross path

2018-06-10 08:03:20来源：Maths teachs Ding Qianpeng分类：News阅读()

Exemple talk about fold kind a kind of method that the problem handles -- the law that cross path (maths is taken an examination of to order eyeball tax tax in choosing self-study to teach Zhengzhou branch greatly) fold kind examination questions is entered in take an examination of mathematical examination paper, this is one of characteristic that take an examination of in Henan, also appeared in last few years a lot of classical examination questions. In mathematical examination paper is taken an examination of in Henan, fold kind examination questions is annual it is the 15th problem that inscribes in fill a vacancy appears, the problem pressing an axis that since fill a vacancy inscribes also is one of the most difficult examination questions in coiling completely. This kind of examination questions makes a difficult point of the student so only, have probably the following two reasons, it is (the picture does not give a picture) the student is used to static graph, to dynamic graph, the viewpoint that won't change with motion goes looking, the imagination does not give a figure, do not draw then give a picture; 2 be (won't calculate) although the graph is drawn,come out sometimes 2, because its are omnibus stronger, student knowledge existence is defective, won't calculate; How to although know,calculate sometimes, but won't calculate opportunely, cause computation the amount is too large, self-distrust calculates go down. Be aimed at these two kinds of circumstances, we offerred the following solution: Reach course fixed position, algebra is calculated (the way of fundamental composition of a picture that remembers be familiar with, quick opening calculates: "In the eye angular, have in the heart than " ) . Exemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross pathExemple talk about fold kind a kind of method that the problem handles -- the law that cross path? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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Fold method meet course standard
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