Maybe a project?
A freshman econ teaching assistant
Imagine that a professor introduces freshman economic concepts in class. The AI teaching assistant (AITA) then makes sure that the students are fluent in using the concepts. The AITA will use “spaced repetition” and “testing in novel situations” as part of its teaching repertoire.
Working with Claude, I created a prototype that gives an exercise for the production possibility frontier. It is at https://arnoldkling.com/apps/ppfdemo.html.
Actually, the prototype does not use any AI. That is, when you give your answers it does not really correct your work on the fly. It has the correct answers stored in code. I imagine that AI will come into play as we get to the more sophisticated process of giving more examples and making sure that the student is becoming fluent.


Pretty good little PP example. Getting the form of the answer is important.
I’d suggest making #2 & #3 both more explicit “numeric value” rather than just value with a light grey number in the answer box, which is good & prolly enough for most.
The AITA idea is good, but also kind of what you want Claude to make for each concept. Along with test questions.
I was reminded by Grok that the independent variables are usually X, but in a dual consumption goods tradeoff, it’s pretty arbitrary. For opportunity cost, the common give up Y to get more X.
Grok mentions the more tangible, agricultural on X as a tiny custom, dominated by other considerations since it’s arbitrary.
Arnold, did Claude or you decide on the axis? Grok’s notes on this was interesting to me, so thanks for the, as usual, excellent mental stimulation.