Comment by mcv

I think 11 is already too late for those blocks. I did some lessons with Blockly [0] in my son's class last years (kids of 6 and 7), and that worked fine for the oldest/smartest kids, though it was still a bit too hard for some. I plan to do it again this year (ages 7-9) to see how that goes.

But after that, I think it's time for some Ruby or Python. I did Basic at that age.

[0] https://blockly-games.appspot.com/