[choochootrain]

thanks! the problem templates are pretty simple but i think we can do better now :) as you progress through the concepts, we introduce more challenging problems.

we used http://www.skulpt.org/ to run python in the browser. i resurrected the site to get some screenshots: https://imgur.com/a/xbpat

i would love to chat some more about your ideas, you can email me at hurshal.patel/berkeley/edu