Students who are not good at math know that no matter how hard they try, they can't make up the problem. As an experienced person, I suggest you try your best to do all the simple things right. It doesn't matter if there is no problem. Don't give yourself psychological pressure because of the problem. My greatest experience in the college entrance examination is that "mentality determines everything". Many students who are usually better than me are out of order because of nervousness. You can also ask the seniors around you. In short, make good use of the last semester, relax and do simple things right.

1. The new edition adds a catalogue and changes the original 300 boxes of chaotic layout;

It is divided into twelve chapters (inequality, derivative, symmetry, complex number, probability statistics, function, set, solid geometry, trigonometric function, vector, analytic geometry, sequence);

2. Change to electronic typesetting. The old version of "300 Cases of Quick Problem Solving in High School Mathematics" was written by me, and some students complained that it was unclear;

3. The speed of solving problems has increased. Others are learning, and I am learning. It has been five years, and our latest methods have been used;

4. Without an appointment, the old version is always afraid of being pirated. There are some appointments, but not this time;

5. Jiangsu paper problem. I didn't know that Jiangsu didn't have multiple-choice questions when I wrote the old edition. At the request of my classmates in Jiangsu, I added a lot of blanks this time.

6. The biggest highlight this time is the old version of 300 cases. I often tell my classmates that reading requires understanding. I don't need the new version because it comes with a video. I will personally teach you how to use this method, just like a gobbledygook, you will certainly be able to read it.

7. Anti-theft seal. In the old version, I wrote with pens of various colors. Copy it down in black and white, and you can't see which method is right or wrong. Those students on the internet who said that my materials were full of mistakes now know why they ignored you. What you bought is pirated. Ha ha. But now, people also use color copiers to print. So I changed the anti-theft method. This aside, students just want to learn knowledge and don't need to know at all.