Is the downloading package missing the needed/intended documentation? What a nice idea - an idea that needs to be supported with a little documentation so parents of 5-9 year olds can help promote why it would be good to use this app, what it does, how to use it, etc. Maybe I missed the point, but - after download - an app's icon showed up on my desktop and that was it. The idea of math apps is great. This user-interface looks very clean - I just had no idea what I was supposed to be doing.