Judging from the mathematics difficulty of college entrance examination in previous years, Henan Province has always taken a simple route. However, this year's math test paper has made many candidates feel more difficult. Specifically, the difficulty of this year's college entrance examination mathematics papers has increased compared with the previous year, mainly reflected in the types and difficulty of the papers. For example, in the multiple-choice part, this year's topic is relatively more comprehensive and exploratory, requiring candidates to have strong comprehensive application ability.

Mathematics answering skills in college entrance examination;

1, series of questions

When it is proved that a series is an arithmetic (proportional) series, the arithmetic (proportional) series with the first term and the tolerance (common ratio) should be written in the final conclusion; When proving inequality, sometimes it is very simple to construct a function and use the monotonicity of the function, so you should have the consciousness of constructing a function.

2, solid geometry problems

It is easier to prove the relationship between line and surface without establishing a system; It is best to establish a system to solve the problems such as the angle formed by lines on different planes, the included angle between lines and planes, the dihedral angle, the existence of geometric bodies, the height, the surface area and the volume.

The concept and marking of college entrance examination;

1, the concept of college entrance examination

College entrance examination is an entrance examination for ordinary colleges and universities in China, and it is a selective examination for ordinary high school graduates and candidates with the same educational level. The national unified examination for enrollment of ordinary colleges and universities is independently proposed by the unit authorized by the competent department of the state or the provincial education examination system.

2, the college entrance examination papers

Marking the general college entrance examination is a method to implement online marking. After the examination, the Provincial Education Examinations Institute will put away all the examination papers, hold a marking meeting first, and then organize personnel to mark the papers in the computer office building of designated colleges and universities. The test paper is disassembled, then scanned and input into the computer system. This branch is in the charge of public security organs and units, and the test papers will be cut.

In the multiple-choice part, the staff will input the standard answers into the system, and the computer will automatically judge them. In the problem-solving part and the composition part, the examinee can get the score as long as the answer is reasonable by manual grading. At the end of marking, the Provincial Education Examinations Institute will re-bind and seal the examination papers, and no one may view them. After three years, they will be destroyed.