In fact, the textbook is nothing to the whole high school content, but you must learn it well, because the foundation is very important to the whole high school competition, such as triangle deformation. If you really want to be a good MO member, you must practice until you can see what is after 3 or 4 steps with your eyes.

Senior one suggests that after learning all the contents of senior high school, he should master famous inequalities such as triangle deformation and Cauchy mean value, be extremely good at derivation, master the establishment method of solid geometry and probably understand probability. Competition involves little, and it is generally probability packaging, but the essence is not to test probability. To get 53, you have to finish it as quickly as possible. In high school, speed is everything, not only in competitions, but also when you first come into contact with competition books.

You can play the competition book in the second year of high school, and I ordered the middle position as an aid. More than 10 books have been written throughout senior two. At ordinary times, you should set up a notebook to write down good questions and good experiences (this work can be started as a freshman). You must stick to it,

Senior three, it is estimated that you 1 month will start the league. Before that, you practiced your hands with simulation questions every day. By the way, by the way, at this time, the notebook of senior two played a great role. Don't work too hard at this time, save energy, keep a good sleep and be happy every day O(∩_∩)O~