This is a SMART notebook file created for the SMART board. I can not guarantee that this file would work with any other interactive whiteboard. This lesson is set up as a procedural lesson for solving equations by isolating a variable. It includes a PDF of the triangle activity at the end of the lesson if you would like to use it as a hard copy instead of just with the whiteboard. If you are interested in more products for middle grades check out my store Prince Product's for the Middle.