Help students visualize the relationships between area, volume, shape, form, and size. Set of 10 large plastic geometric shapes in four bright colors includes activity guide. We're Learning Resources, and we've been helping parents and teachers build generations of amazing kids since 1984. Our educational toys offer kids the building blocks they need to succeed in school and develop a lifelong love of learning. Discover countless ways to learn through play with our award-winning products. Subject Area: Mathematics; Specific Subject: Geometry; Age Recommendation: Ages 5 and Up; Grades: Grades K to 5.