Use these to teach a conceptual understanding of place value, which can be difficult for students studying decimals. The disks can also be used to practice the four operations, and are especially useful in mastering regrouping. One class set contains ten individual student sets, which include: (5) ones, (20) tenths, (20) hundredths, and (10) thousandths. Colors of discs are aligned with Primary Mathematics Standards and Common Core Editions and Math in Focus™. For use in grades 4-6.
* Also known as Number Discs, as seen in EngageNY.