Small squares, many squares. Generally, each edition has 20 squares and 20 squares, which are used to do math exercises, leaving a space on the left to write the title number. It is used to practice calligraphy, some are printed with nine squares, and some are used to write big characters and fine characters respectively.
Extended data:
Exercise books are notebooks and exercise books for middle school students and primary school students. The cover printed by the school according to the discipline and degree is usually accompanied by the school emblem and name, also known as the school book. Sometimes, for the sake of distinction, exercise books sold in stores are called street books. There are fields on the cover of the exercise book to fill in information such as name, class, class number or student number, subject, teacher's name, etc.
On the back of some covers, there is a table to record the date, content and main points of each exercise. Parents may need to sign the form to know their children's academic performance. The habit of practicing instruments.