What style should primary school students learn brush calligraphy from?

If you practice writing brush, you can start from the cycle of cursive script gradually, not fast, but refined. First of all, choose a famous copybook you like and copy it for at least 15 minutes every day. I specialize in writing a few words a day, and I feel I can write well and practice more. The process of practicing calligraphy is a process of copying, mastering and recreating. Calligraphers' life is to improve their rhyme and spirit through copying and creation.