Use these Plastic Base Ten manipulatives to engage students in concrete demonstrations of place value and base ten concepts. Units are made of durable, washable plastic for years of hands-on activities. Great for helping students understand abstract base ten concepts, including place value, estimation, operations, and more. Details:Arctic bluePlasticFor use with 3 to 4 studentsFor ages 6 and up Contents:100 individual units30 rods10 flats1 cube112 page base ten revived book (LER 4296) Teaching notes