Wards Essentials Trigonometry Puzzle Set, High quality precision-cut Birch verner pure bond plywood, Contains: Step-by-step educational guide, Includes the unit circle, three 30-60-90 triangles, two 45-45-90 triangles, two circular sectors, Kepler's triangle
Probability Resource Kit, includes: 4 different types of spinners, 4 different types of dices, two-sided probability discs, assorted discs, and sticks for many probability activities in mathematics