Datian character notebook
Teachers have different requirements. Some require a seven-character grid and some require a nine-character grid. The difference between the seven-character grid and the nine-character grid is the size of the grid. Because the children’s small handwriting is irregular and they don’t know how to control their pens, they use the Tian-zi grid to constrain their writing so that they don’t write in an unusual way, so they all use Tian-zi grid notebooks