Grades 1 & up. Catch on to geometry! Combine sticks in 3 sizes, along with curves for making circles and cylinders, with two different connectors to build 2-D shapes, and even work to make 3-D shapes. Features soft pieces and simple connectors - perfect for working on 1st grade CCSS concepts. Includes 80 sticks and curves in 3 sizes, 40 connectors, and 15 double-sided activity cards.