I am at the National Singapore Math Conference as I write this. It is being held in Las Vegas, Nevada and has so far been worth every minute (and every dime). I have learned the best ways to use manipulatives and there is one I thought I would share. 

The big thing in Slapshot math as I call it, is number bonds. A number bond is two parts that somehow equal a whole. Used in the lower grades in both addition and subtraction, they are a staple for this program. For example:

                         4

                                         20

                         5                

In other words the two parts, 4 and 5, equal 20. However, you use language to say it as a math sentence. So, 4 AND 5 ARE 20. One of the coolest manipulatives we made this week so far are number bond bracelets. Here is how:

               Take a pipe cleaner in one color and some beads in another, contrasting color. String the beads onto the pipe cleaner, and connect making a circle. Fold a piece of masking tape around on end to make a hanging piece to write on. That is where you write how many beads are on your bond. The bond is the circle. Then you can slide the beads around to make different bonds.

For example: a red number bond bracelet with seven yellow beads: how many ways can you make or show seven? You can slide 2 beads apart, making 5 and 2. You can slide 3 beads apart making 3 and 4. 

These are a great project for students of any age! Try it: whether you are a student or teacher...