The first and second grades are mainly to cultivate children's good study habits and finish their homework on their own initiative every day. When they encounter problems, they will know how to think or ask questions. What adults need to do is not tell him the answer directly, but induce him to think about why. Don't directly say which question is wrong when checking. You can tell which page has several wrong questions and guide the children to check for themselves. First, they can look back. Second, the mistakes they found out were impressive, and it is not easy to make the same mistakes again in the future. Stick to it for a long time, even if the result is not satisfactory for the time being, I think I can catch up later.