The article proposes various ways to mitigate the problem of Learning to Program Getting Harder. One approach is "Interactive tutorials that run code in a brows

The article proposes various ways to mitigate the problem of Learning to Program Getting Harder. One approach is "Interactive tutorials that run code in a browser,..." I've seen this approach implemented for teaching logic and proof, both https://www.ma.imperial.ac.uk/~buzzard/xena/natural_number_game/ https://www.ma.imperial.ac.uk/~buzzard/xena/natural_number_g... and http://incredible.pm/ http://incredible.pm/ and it seems to work well. It is certainly easy to get started.