The science 10 problem of China Volume B is a comprehensive problem of set, sequence and trigonometric function. The periodicity of trigonometric function of set concept can be solved by both the periodicity of trigonometric function and the combination of numbers and shapes.
Combined with the actual situation of rubber production, the processing effects of two processes on the expansion rate of rubber products are compared. With the help of the basic idea of hypothesis testing, the mean and variance of samples are used as statistical inference tools to examine the ability of candidates to analyze and solve problems by using the learned statistics and probability knowledge.
The science 19 in Volume B is based on geometry, and examines the relationship among space, line and surface. The science 2 1 in Volume B requires candidates to discuss the classification reasoning according to the nature of parameters, and to examine the orderliness and rigor of candidates' thinking.
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Looking at the structure of college entrance examination papers and the new curriculum standards in previous years, we still insist on innovation in stability, attach importance to the examination of basic mathematics knowledge and skills in senior high schools, and pay attention to students' ability to analyze and solve problems, which meets the requirements of examination instructions and takes into account the teaching practice in middle schools.
Examine mathematical thinking ability and reduce complex mathematical operations. Moving from "solving problems" to "solving problems" is considered to be a highlight of the college entrance examination mathematics. In 2020, we should continue to uphold this concept, how to think more and how to calculate less.
Strengthen the examination of mathematics application ability and innovation ability. How to use mathematical knowledge to solve problems in real production and life has always been the highest requirement of mathematics learning. Every year, the college entrance examination has a special topic to test students' mathematical application ability.
For most high school students, high school mathematics is the biggest problem, especially the function part. If you want to achieve ideal results in the college entrance examination, especially the sprint of 145+, sometimes it is far from enough to study hard, and you must also master certain problem-solving and test-taking skills. As long as we make rational use of it, we will be able to successfully face the future college entrance examination.