Math: Do more and practice more, especially those typical and frequently tested contents. Arrange time for students to set questions in class and do them on the platform, and let students do exercises and teaching AIDS after class;
English; If your school is not a key primary school, I don't think it is necessary to teach English well, let them know letters and have some impressions of some simple and commonly used words. Primary school only plays the role of English enlightenment, and students' English is usually formally studied in middle school. It is not easy for them to learn well, but if they must learn, they can only start with words and some simple grammar.
I hope I can help you!