Not exactly. I remember our math teacher once said that a child's math development can be predicted from the fourth grade. If the fourth and fifth grades are good, the junior high school problem will not be very big.

Junior high school math is not good. It also depends on the stage. For example, now is only the first stage, and the variables in the future are still very large. Children's preference for subjects is likely to be related to teachers, subjects themselves and the environment. It is not completely impossible to make up for the gap in time. There is still a lot of room for improvement.

Even in the third grade, it is still possible to make progress. Although you can pull a lot of math in the senior high school entrance examination. However, progress can still be made through special review, special geometric review of geometric difference and special analysis of analytical difference.