This angle ruler is made from high-strength plastic and combines multiple functions in one compact tool. - Durable, lightweight construction: high-strength plastic for reliable use in class or on the go. - Multifunctional design: serves as an angle measuring tool and a practical ruler for geometry work. - Portable and easy to learn: supports methods for solving geometric exercises with a simple, portable device. - Whiteboard ready: suitable for drawing and teaching on whiteboards; also capable of drawing circles and small angles. - Clear, user-friendly operation: straightforward to use for students and educators in everyday teaching and learning. 2-3 practical use scenarios: - In the classroom to measure, construct angles, and illustrate circles during geometry lessons. - For homework or self-study to practice angle measurements and geometric construction without complex tools. - During whiteboard presentations to illustrate angle relationships, circle sketches, and small angle measurements.