hand2mind Student Math Safe-T Protractors Set of 24

Solid scale protractor has lower scale reads right-opening angles; upper scale reads left-opening angles. Eliminates confusion of supplementary angles. ETA hand2mind 75869. Educational products, manipulatives, and kits incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use educational kits, products, and manipulatives alongside math, science, literacy, and stem curriculum to demonstrate concepts and real-world applications through hands-on activities.