Introducing the 100 Bead String
By Cindy Aossey (KCM) & Funda Gonulates (NKU)
Students need experiences with a variety of tools to internalize the structure of the base ten system. The
100 bead string has a linear tens and ones structure that allows students to build and compare two-digit
numbers. The bead string encourages students to reason about numbers in relation to multiples of 10, and
lays a foundation for rounding and for representing numbers on a number line.
Targeted Standards: KY.K.NBT.1, KY.1.NBT.2, KY.1.NBT.3