"Examination Instructions" is a legal document for the college entrance examination issued by the Examination Center of the State Education Commission, which stipulates the nature, content and form of the examination, especially clearly points out the contents and requirements of the examination, that is to say, clearly determines the knowledge points to be tested and the degree of each knowledge point to be tested. For example, it is stipulated in the recursive sequence that knowing the recursive formula is a way to give the sequence, and the first few tops of the sequence can be written according to the recursive formula. For example, the geometric part of inequality is clearly defined, and many teachers also require students to master the super-class content. This not only increases the burden on students, but also on teachers, which deviates from the correct review direction. Of course, you can't get any good grades in the exam. It's really "thankless" Therefore, in the review, we should review in strict accordance with the contents and requirements stipulated in the examination instructions.

Second, study textbooks to find standards.

Most teachers and students throw their textbooks aside and bury themselves in this material every day during the general review of the college entrance examination, which is very wrong.

First, the national unification of teaching materials is not only the unification of content, but also the specification of definitions, theorems, formulas and symbols. No matter how to describe and use symbols in textbooks and reference books, textbooks are the standard. For example, in 1993, the hyphen "σ" was used in science (24) in the college entrance examination, but many candidates did not understand it, but the p260 textbook Algebra II appeared, which was forgotten because it was not used for a long time.

Secondly, there are prototypes in many college entrance examination textbooks, which come from examples and exercises in the textbooks.

It can be seen that it is not advisable to review without textbooks. We should take the textbook as the standard, extend, broaden and change the topics in the textbook, so as to draw inferences from others and let students lay a good foundation.

Third, study the exam questions to see the form

The proposition of college entrance examination adheres to the guiding ideology of "two advantages", that is, it is beneficial to the selection of freshmen in colleges and universities and the teaching of mathematics in middle schools. Therefore, the college entrance examination questions will certainly play a very important guiding role in middle school mathematics teaching. Therefore, no matter which part of the content is reviewed, we should carefully analyze and study the examination of this part of the content in the college entrance examination questions in recent years, so as to be aware of it and improve efficiency. If we carefully study the examination of parametric equation in college entrance examination questions in recent ten years, we can find that the concept of parametric equation and parametric equation are simply examined in the form of multiple-choice questions or fill-in-the-blank questions. correct