Hand2Mind Cactus Counting Desert Math Activity Set, Ten Frame Math Manipulatives, Color Counters For Kids Math, Montessori Math Materials, Math Games For Kindergarten, Addition And Subtraction GamesChildren will sharpen number sense and practice early math concepts with the irresistible Cactus Counting Desert Activity Set! This set combines colorful Cactus Counters with engaging Five Frames, creating a hands on way to practice addition and subtraction, patterning and sorting, and so much more. Five frames are visual, hands on tools that help children develop number sense and allow them to compose and decompose numbers in relation to fives.