20 17 Jiangsu college entrance examination math problems continued the style of previous years, focusing on the foundation and close to textbooks. The examination questions are based on the basic and comprehensive examination, and pay attention to the examination of ability, which embodies the proposition principle of ability conception. The examination paper is stable in structure, wide in knowledge points, focused, clear in level and gradually deepened, which is convenient for students to solve problems.
Pay attention to the foundation and highlight the trunk: Mathematics test questions are closely related to teaching materials and have the characteristics of "easy to use". Fill in the blank1-10, solve the problem 15, 16 and the additional questions A, B, C and D of 2 1 are easy questions, and students can get these basic points through proper operation. Fill in the blanks 1 1- 14 is somewhat comprehensive, with high thinking content, and pays attention to the examination of mathematical thinking methods, but the ideas and methods for solving problems are still universal and will have a good degree of differentiation. The problem-solving number 17 is analytic geometry, which has changed the situation of large calculation in the past. Students can do it by hand and get better scores. 18 is related to the knowledge of plane geometry. The key is to transform the problem and highlight the examination of mathematical thinking methods. If we can enhance some practical applications, we can better reflect the application value. The 22 nd additional question is also a test question expected by teachers and students, so it is natural to pass the space vector operation. 19, 20, 23, and additional questions are all set at different levels, and the difficulty of each event is progressive and spiraling. If the starting point is right, all students can get points, and candidates at different levels can gain something.
On the premise of emphasizing "generality" and "general method", the test questions permeate the basic mathematical thinking methods contained in middle school mathematics knowledge. Such as 1 1, 12, 13, 14, 16, 17 and 20; 8, 9, 10,1,12, 13, 14, 16, 17, 20. Discussion on the classification of questions 1 1, 14, 16, 20; Question 5, 6, 7, 13, 15, 19 transformation.
Ability and intention, moderate innovation: 20 17 Jiangsu college entrance examination mathematics questions not only pay attention to the examination basis, but also highlight the examination of basic mathematics ability, comprehensive ability and innovation ability. From beginning to end, the test questions examine five basic mathematical abilities: spatial imagination, abstract generalization, reasoning, operational solution and data processing. For example, the seventh question organically synthesizes the domain of function, the solution of unary quadratic inequality and geometric probability; 12 problem combines the basic theorem of plane vector, trigonometric function and solving triangle; Problem 13 links straight lines and circles, vector product and linear programming, etc. 14 is a comprehensive examination of the nature of functions. 19, 20, and 23 all have higher thinking requirements, which can test students' ability to comprehensively and flexibly use their learned mathematical knowledge and thinking methods and creatively solve problems. Especially in the question 19, the newly defined "P(k) series" is combined with arithmetic progression in an orderly way, which effectively tests students' learning potential.
The writing of test questions pays attention to the diversity of thinking methods and the universality of entrance, which not only ensures that candidates with all levels of ability gain something, but also makes candidates with excellent comprehensive ability stand out.