1, practicing calligraphy can exercise children's concentration and make them sit still, which is very good for children to roll their faces. Mental arithmetic and abacus calculation only work in mathematics, but not in other aspects.
2. abacus mental arithmetic needs to be cultivated from an early age. The summer vacation of grade five is already late, so learning abacus mental arithmetic can't keep up with the progress, and calligraphy can be learned at any time.