How I Use It
I am using it to teach basic coding. What is working is the leveling of how students advance through the lessons. Perhaps if there were more helpful videos to show how the activity is supposed to look like, that might help more.
I love that it is free, but I wish I could monitor the progress of students more easily, like how I can on Hour of Code's site. It get students introduced to coding, so that is awesome for k-2/3!!