It's actually very easy to use, but because it appears a bit confusing, I created this slidecast tutorial that explains exactly what to do and where to find additional resources on this topic. Before you use this with kids, you might even want to try it yourself! You might be surprised with the results!
Teaching your students how people are smart in many ways can be very empowering, and most students enjoy the process of discovering how they learn best.
Teaching Resources ~ http://www.lauracandler.com