These color counters allow children to develop math strategies based on properties, reinforce traditional algorithms, and build understanding of math operations and other topics, such as rounding to the nearest. Kids can learn counting, addition, subtraction, grouping, and more early math skills in a hands-on way. Each of the place value counting pieces is marked with whole number values - blue is marked 1, pink is marked 10, green is marked 100, and purple is marked 1,000. Each foam disc measures 1.5 inches, are light weight and easy to clean, making them elementary classroom must haves. Each set includes 200 soft foam counters in blue, pink, green, and purple and are perfect for counting place value. For over 50 years, hand2mind has encouraged hands-on learning and discovery, driving deeper understanding and helping children unlock their full potential. Hand2mind specializes in math manipulatives designed to help students learn by doing. Particularly with place value, hand2mind supplies place value manipulatives like base ten blocks and place value discs to help kids comprehend thousands, hundreds, decimals and more! From early math to middle school math, hand2mind has you covered with products designed to enhance learning in the classroom and the world around us. Through hands-on exploration and discovery we strive to find new ways to encourage students in math practice, literacy activities, STEM education and more!