Help students to delve into plane geometry! Great for hands-on activities such as perimeter, area, identification of shapes and attributes, spatial reasoning, similar triangles, parallel lines cut by a transversal, show examples of angle bisectors that form perpendicular angles to opposite sides and more. 82 piece set includes 2 protractors, 13 double-sided work cards with 23 activities, and GeoStix™ in 8 different lengths (2.5cm to 25cm). Grades 3+