- Durable precision: this large protractor for teachers is built for long-term classroom use with a hard wear-resistant ABS body that holds its shape and resists damage from frequent handling. - Safe, burr-free design: smooth edges and rounded corners remove burrs, reducing the risk of cuts or scratches and making it appropriate for schools and learning environments. - Easy to use in the classroom: lightweight construction and simple handling support smooth demonstrations and quick setup, helping with stress-free teaching moments. - Large digital display: a prominent digital readout provides clear, easy-to-read angle measurements for accurate readings during lessons and demonstrations. - Practical applications: ideal for geometry lessons and angle demonstrations, classroom demonstrations requiring precise angles in experiments, and student activities that involve measuring and comparing angles. - Suitable scenarios: use during math instruction to illustrate angle concepts, in science labs for setups that depend on precise angles, and in student group activities that involve collaborative angle measurement.