(1) Divide complex problems into simple ones, difficult ones into easy ones and unsolved ones into solved ones.

(2) Flexibility and diversity, there is no unified model, and dynamic thinking is used to find ways and methods to help solve problems.

(3) The college entrance examination pays attention to the commonly used transformation methods: general and special transformation, complex and simple transformation, structural transformation, and equivalent transformation of propositions.

Holistic thinking

Starting from the overall nature of the problem, we should highlight the analysis and transformation of the overall structure of the problem, find out the overall structural characteristics of the problem, and be good at treating some formulas or figures as a whole with the "overall" vision, grasping the relationship between them, and making a purposeful and conscious overall treatment. The holistic thinking method is widely used in algebraic simplification and evaluation, solving equations (groups), geometric solution and so on. , the whole substitution superposition.