Visuals are a must for teaching geometry! Here's a great collection of visuals to display as you teach basic geometry and shapes. Set includes illustrated geometry terms: parallel, perpendicular, similar, congruent, concave, convex, symmetrical, asymmetrical, obtuse, acute, right, line segment, ray, line, and point; 3D shapes: pyramid, cone, sphere, cylinder, cube rectangular prism; the 18 most common geometric shapes; and how could you live without an overhead protractor and a Cartesian plane?