1, different children, for different learning subjects, such as Chinese, mathematics, physics, etc. , not necessarily begin to understand, some early, some late. We need to guide him correctly.
2. Math in primary school is good, on the one hand, because it is relatively simple, on the other hand, you may have laid a good foundation when you were in kindergarten, which is basically enough. But after entering junior high school, he didn't work hard enough and stood still, so he fell down.
3. Is it possible that you pushed me too hard before and had the idea of hating math?
Interest is very important, so is confidence. A temporary setback doesn't mean anything at all. You are not the college entrance examination now, so parents should not rush to take it. Help him find the reason, encourage him more, don't force him. Putting too much pressure on him may cause psychological problems, and then he will be in trouble.
Anyway, take your time. People can't just make progress without going backwards. Sometimes, they can only be allowed to stand still or even go backwards. This is a natural phenomenon, nothing.