High school math. Difficult. Doctor of mathematics, come.
If high school mathematics is not difficult, it is definitely only the patent of a few people. For most people, high school mathematics can be said to be very difficult. But it's not that you can't get high marks if it's difficult. As long as the IQ is normal, you can still get high marks within your ability through scientific practice! Which is the most difficult for the current college entrance examination? I think many students will think of several places, one is analytic geometry, the other is derivative, and the other is function, and some may add solid geometry. It can be said that looking at the college entrance examination questions, these parts are definitely the places with the highest failure rate! So how can we get good grades in high school? First, scientific practice. You can't finish the problem, but you must do it. You must know how to do it. My preferred method is "building a list of knowledge and solving problems item by item". The specific method is to list the test sites, and then find the corresponding problems to solve until you solve them. Don't stop, you must solve them before you do the next one! Instead of casting a net in a large area, I finally got nothing! Second, think in time. You can't do problems for the sake of doing problems, you must master the thinking of solving problems, which requires you to think and ask yourself why, why do you think so? Why use this knowledge point? Why is this happening? Wait! Third, summing-up is a process of promotion and a process of presenting our thinking results. Therefore, when we have a solution to a certain class or a certain problem, we can sum it up, so that we can have a place to look when we forget it. High school mathematics should be practiced with questions and thinking, both of which are indispensable! Mathematics is a big subject, and the content is from easy to difficult from primary school to university. High school is definitely more difficult than junior high school. Isn't every subject like this? This is the meaning of learning. Moreover, the knowledge of mathematics is coherent, not suddenly difficult, but a system. If you want to learn high school mathematics well, you must first learn and understand all the knowledge in the textbook, complete all the exercises, at least one method to prove the theorem in the book, and remember the formula well. In addition, there must be at least two auxiliary exercise materials to complete, and some math contest topics can be done appropriately to improve the ability to take exams. You can't transfer the knowledge in the book to your brain without brushing a lot of questions. Therefore, we must cultivate the inspiration of solving problems through a lot of brushing questions.