Is it useful for third-grade children to have two extracurricular calligraphy classes a week?

Useful. Calligraphy practice can't be written overnight, and the teachers in the calligraphy practice class can't teach it all at once, which requires all the usual foundations to be changed, so it is useful for third-grade children to have two extracurricular calligraphy practice classes a week. Writing practice is a Chinese vocabulary, which refers to trying to figure out words repeatedly and practicing writing better fonts.