You can give copybooks to students in calligraphy training classes. It is a normal homework. The teacher also hopes that the copybook can improve students' handwriting and concentration, which is a good thing. Copybooks are models for people who want to learn calligraphy to copy. They are mostly stone rubbings, woodcuts or photocopies of famous calligraphy. Copybooks are sometimes used by children when they are learning to read and practice calligraphy to become familiar with the glyphs, and have the function of shaping fonts.