The functions of student rulers are diverse and diverse. In addition to basic measurement functions, some high-end student rulers are also equipped with special functions such as scale amplification and fluorescent display. The scale amplification function enables students to see the scale more clearly during measurement, improving the accuracy of the measurement. The fluorescent display function facilitates students to use the ruler in dimly lit environments, improving the convenience of use.

There are various types of rulers used by students, including straightedge rulers, triangular rulers, and curved rulers. A ruler is the most basic tool used to measure the length of straight lines and is essential for students to perform tasks such as drawing and calculating. The triangular ruler has a special angle scale, making it convenient for students to measure and draw angles. A curve ruler is suitable for measuring and drawing curves, meeting the needs of students in special subjects.