How I Use It
I used this with SPED students. They liked that they earned points. The students ended up becoming very competitive with each other as to who could earn the highest score, who they could beat, and were actually learning. I used the tool to fill in gaps.
I had difficulties with the on screen white board, where they could write on the screen. Most of my students still preferred to use pencil and paper.
I truly believe that Khan Academy is a great resource for teachers to help with students retention of topics. It can be used as quick bell ringers or great reviews of previous material.