It is recommended to report to the online school. If the foundation is really poor, consider one-on-one. Mathematics in the third grade of primary school is not difficult, so for fresh children, if they don't learn well, they should be vigilant. Although elementary school mathematics has nothing to do with junior high school, it is basic. Poor math in primary school will seriously affect self-confidence, and some basic instrument knowledge will also be used in junior high school. We should pay attention to this problem. I am an advanced placement student, and my fifth grade math is not good enough, which leads to junior high school math not reaching the top level. Now my senior year is still at the end of the first echelon, so it is difficult to impact the first echelon. Confidence in mathematics begins at an early age, so children must like learning mathematics from an early age. Because too many people leave their jobs, teachers can't teach students in accordance with their aptitude, which may be counterproductive. Be careful not to let children lose interest in mathematics! I have met many people who are not good at math but are interested in it. After a period of accumulation, they made a qualitative leap. I think the answer is ok, please adopt it. Expect children to progress.