This is similar to what Khan Academy did back at the start of the application. There was a mathematics skill tree and you started at 1+1=2 and ended at the Stok

This is similar to what Khan Academy did back at the start of the application. There was a mathematics skill tree and you started at 1+1=2 and ended at the Stokes Theorem. It worked well but was a bit overwhelming. The other challenge was that many skills were interconnected and so the progression wasn’t strictly linear.