Now there should be a round of review in the winter vacation of grade three. Wujiaochang (Southeast Mathematics) is quite good. Arrive at school one step earlier in winter and summer vacation, and deepen training on the basis of school progress in spring and autumn, so there should be a round of review in winter vacation, and the class size is small, so teachers can take care of it more comprehensively. I suggest you go to their campus for consultation.