At present, many students who are good at mathematics in junior high school feel that they can't adapt to the study of mathematics in senior high school, and their academic performance has dropped greatly, including senior one students who have just entered the senior high school curriculum. There are many reasons for this phenomenon, but the root cause is the connection problem in junior high school mathematics teaching. This question seems to be the voice of high school teachers. In fact, junior high school teaching is also closely related to it. This paper expounds several convergence problems that junior middle school mathematics teachers should pay attention to in order to develop.