Abacus mental arithmetic: the disadvantages outweigh the advantages
Although some parents are keen on mental arithmetic, the state has clearly pointed out that it does more harm than good to children. Abacus mental arithmetic is not to cultivate children's mathematical thinking, but to get answers by reciting formulas. If you forget the formula, the ability to solve problems disappears. Real mathematics is a kind of thinking ability, which will not be forgotten by time. Therefore, I personally don't recommend children to learn abacus mental arithmetic.
Pursuing appropriateness and balance
We should pursue the appropriateness and balance of participating in training courses. Too many training classes may make children physically and mentally exhausted, and eventually lead to weariness of learning. Excessive overdraft in childhood may hinder children's leap in youth. Therefore, it is better to leave some strength for children, so that children can devote themselves more to their studies when they are in Grade Two or Grade Two.
Childhood: Have fun.
In childhood, children should be allowed to play as much as they want. Such a childhood life will bring them immeasurable value when they grow up.