1, eliminate a doctrine

Give a few problems that have nothing to do first eliminate, OK and affirmatory problem decides first, narrow as far as possible sealed limits, analyse and solve of the problem in order to facilitate. Means of this kind of thinking works in ours and very useful point is in the life.

2, recurrence law

By foregone condition layer upon layer be down an analysis, should ensure each pace can accurate without by accident. May have a few branch, should act on first easy hind difficult principle, conform to the principle of simplicity first an odd proceed with.

3, push a way

From the problem final result begins, one pace is pushed forth, till the solution that seeks an issue. Some problems arise with this law solution very simple, if use other square law very difficult.

4, subjunctive

Right given problem, make first or a few hypothesis, undertake an analysis according to the condition that already gave next, if appear to have contradiction with the condition that the title gives, show hypothesis error, can make another again or assume a few more additionally. If the result has two to plant only likelihood, so the problem had been solved. It is on science history, "Suppose " ever had huge effect.

5, numeration

Some problems must be solved via computational ability. Those who want an attention is, the problem in intellective exam often contains implicit requirement, the number that gives out sometimes is useless.

6, analytic law

This is the basiccest method. All sorts of methods often should use analytic method. Can say, analyse the discretion of ability, of the intellectual level that is a person reflect. Analysing ability is congenital not only, depend on greatly acquired training, should raise didymous and external object to have good habit of the analysis.

7, constructive law

According to the foregone condition in the problem, use proper method to draw a graph, conduce to the settlement of the problem. Some problems, before doing not have draw, can feel nowhere does it, after painting a picture with respect to be clear at a glance.

8, synthesis

In fact, a lot of problems should apply a few kinds of different method ability to solve. Alleged synthesis, it is integrated all sorts of methods (the method beyond all sorts of methods is narrated before including) go solving certain problem.

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