Write & Wipe Fact Family Boards-Set of 5

Use these math–fact triangles again and again! The familiar triangle format offers a powerful method for building number fact fluency and teaching fact families and it focuses on both addition/subtraction (on front side) and multiplication/division (on reverse) and features a write & wipe surface on both sides of the board. They also support the development of higher–level algebraic skills such as equation building, the commutative property and problem solving. Five triangle boards are included, each measures 10"H. 1st Grade and up.