- Robust precision and durability: This large protractor for teachers is built to last with a hard, wear-resistant ABS structure that remains reusable, keeps its shape, and resists damage from frequent handling. - Safe, burr-free design: Burr-free appearance and rounded edges prevent cuts or scratches, making it a reliable choice for educational institutions. - Lightweight and classroom-friendly: Easy to use and gentle on students, the lightweight protractor minimizes the risk of scratches or injuries during classroom use. - Clear and accurate readings: The large, highly visible design enables quick measurement and easy reading, supporting precise angle and geometry calculations. - Practical applications: - In geometry lessons, measure and verify angles on diagrams and nets. - During student demonstrations or group activities, align shapes and compare angle relationships. - In drafting or art projects, perform quick angle checks to ensure accurate constructions.