Find time to look at formulas and typical examples bit by bit. I think the most important thing is to correct the wrong book. (Generally, teachers will ask for correcting mistakes after class as homework. Therefore, we should accumulate the wrong questions in homework and exams and write down the correct steps, why, carelessness, failure to recite formulas and units. Senior three used several books to correct mistakes, and his grades improved a lot. You can't just copy the wrong questions. Always correct your mistakes, always consult your classmates and teachers, and understand what you don't understand bit by bit, and you will understand. Then don't lose heart if your exam score is low. You have made many mistakes and corrected them, and you will catch up later. Our goal is the college entrance examination. The ranking of scores in Grade One and Grade Two doesn't tell everything. When I was in the third year of high school, the top ten students in my class basically failed to get good grades in the first and second years of high school. Catch up bit by bit! Thick accumulation and thin hair!