About this item:
Using a huge protractor floor sticker and their classroom door, students learn how angles are measured in degrees and discover acute, right, and obtuse angles. Simply stick the sticker to any smooth, clean flooring in front of a door frame with the door opening out over the sticker. When removed, it won’t mark or damage the floor underneath! Durable vinyl construction withstands heavy foot traffic for long-lasting use. Designed for one-time use. Not recommended for use on carpet. Choose 90-degree or 180-degree sticker. Recommended for Elementary and up.