Listening carefully in class is the most important thing. Of course, no one can concentrate within 45 minutes 100%, so pay attention to the key points. If you really can't find the point, you can ask the teacher.

Then do the problem. I don't advocate crowd tactics. But to do all kinds of problems, you must keep a clear head when you do it, and you will get something when you do it. These questions are all the same, if you really know how to do it, it's almost the same.

There is also the wrong book. It's not just a mistake, but a problem that you think is valuable. Reading it once can enlighten you on how to deal with this kind of problem.

Some problems in junior high school have a large amount of calculation, so we must dare to calculate. Don't forget them just because they are troublesome or weird.

That's all I learn about math. I got into10 with a perfect score of 1 10 in junior high school. Come on!

You can ask me again if you have any questions ~