This Smartboard Lesson Uses red and yellow discs to model the multiplication of integers by either showing or removing groups from a zero desktop.
The file includes a
1. Smartboard File
2. Students experiment sheet
3. Full set of directions for using the Smart Notebook File
If you don't have the smartboard technology you can download the Smart Notebook Interactive Viewer and project this file and show it on any white surface.
Another File, available in my store, can be used to give the students further practice with multiplying using the show and remove idea.