These are the teen beads. When you start the lesson, you have nine of the ten bars and then one of each of rest out. Bring them all to the rug and tell the children today we're going to learn a new way to count. One, two, three, four, five, six, seven, eight, nine, ten. This is ten. One. This is one. This is ten. One, two. This is two. Ten and two make twelve. Can you say twelve? This is ten. One, two, three. This is three. Ten and three make thirteen. This is ten. This is four. One, two, three, four. Ten and four make fourteen. This is ten. One, two, three, four, five. This is five. Ten and five make fifteen. You keep going until you get all the way to the end. It gives the children a really good idea of the mass quantity when they get to nineteen, they see that the nine is almost the same length of the ten bar. So, it's a good way to start the children in counting in the teens. That's how you give a lesson on teen beads.