Mathematics in junior high school has become difficult, and the process of formula derivation has also become difficult. Many parents and classmates think that mathematics is a science and needs to be "understood" rather than "recited". This is actually a big mistake.
The exam is a time-limited exam, so there is no time for you to recall the formulas in the math textbook bit by bit in the examination room. The best way is to memorize the formula and the derivation process, so that you can reflect which formulas he wants to use in the first time. Even if the topic is difficult and you can't work it out, you can get a basic score by listing the formulas.
You can recite wrong questions. In fact, in junior high school mathematics, there are only a few kinds of questions corresponding to each knowledge point. You can recite your own mistakes with classic examples, and one or two of each type is enough. Just follow the condom during the exam.
2. Sort out the wrong questions, trace back to the source and find out the reasons for the wrong questions.
Most students will prepare the wrong books. But few people can use the wrong book well.
The wrong question book is not only copying the wrong question, but also writing the answer below. This is formalism and won't work.
3. Listen to the teacher's ideas in class
Many students like to be absent-minded in class, or are too busy taking notes to ignore what the teacher said.
This is putting the cart before the horse. Self-study after class takes you 10 times as long to study, and you may not understand it.
Try to follow the teacher's ideas in class, try to keep up with what you can, circle up and put down what you don't understand for the time being, and then continue to follow the teacher's ideas. After class, talk with teachers or classmates to understand the difficulties marked by yourself. As for the notes, you should remember that you can understand them without pursuing beauty. This is formalism, which doesn't have much effect.