Question 1 Compacting double foundation "step by step", and the reinforcement condition is "road sign"
The second topic "Bow Problem" meets again, and "All roads lead to the same goal" makes a rapid breakthrough.
The third problem, "pattern recognition", seems to be "parallel", but in fact it is "progressive".
The fourth problem is "alignment", "focus" frequently appears, "condescending" and "structure"
Question 5: Don't be blindfolded by "floating clouds", but explore the direction of "micro-view of caves"
The figure or basic figure needed to construct the theorem is the skill to do the last math problem in the senior high school entrance examination.
In the process of solving problems, it is sometimes necessary to add auxiliary lines. In the senior high school entrance examination in Beijing, only one simple proof question does not need to be added with auxiliary lines, and the rest involve adding auxiliary lines. The requirements for students to add lines in the senior high school entrance examination are quite high, but almost all of them follow the principle of constructing graphs required by theorems or construct some common basic graphs.
Calculation and proof of line segment and angle
The answer to the senior high school entrance examination is generally divided into two or three parts. The first part is basically some simple or intermediate questions, aiming at examining the foundation. The second part is often the problem of starting to pull points. The significance of mastering these questions easily lies not only in getting scores, but also in the influence on morale and morale in the whole process of doing them. Generally speaking, it is not difficult to calculate and prove line segments and angles. As long as the key "problem" is found, the following paths will "connect" themselves.
Dynamic geometry
Judging from the senior high school entrance examinations over the years, dynamic questions often appear as finale questions, and the scoring rate is also the lowest. Dynamic problems are generally divided into two categories, one is algebraic synthesis, and there are moving points and moving straight lines in the coordinate system, which are generally solved by multivariate functions. The other is the geometric synthesis question, which sets moving points, straight lines and overall translation and flip in trapezoid, rectangle and triangle to examine the comprehensive analysis ability of candidates. Therefore, the problem of motivation is the top priority of mathematics in senior high school entrance examination. Only by mastering it completely can you get high marks.
The above are the 36 finale questions I compiled for you. I hope I can help you. Please continue to pay attention to this site for more information about the senior high school entrance examination!