How about Mo You's calligraphy? Does anyone understand?

This summer vacation, the school teacher introduced Mo You's calligraphy to me. I didn't expect the traditional calligraphy class to be so effective online, and many children used it. They will make personalized teaching plans according to children with different foundations, and the teaching materials are also very professional. In particular, the innovative hard-pen calligraphy exercise book matches children of different ages and learning levels, and has also obtained patents. I think it's good to teach students in accordance with their aptitude.