Ah, I see. I haven't experienced it yet, but I will pay attention next time. That doesn't even seem logical; with more practice at teaching, shouldn't you teach faster?
But a logical fix would be to have you pick what profession you want FIRST, and each profession has a different length of time based on what tier it is, and we can get rid of the money cost with this.
Nah as it is is cool as is because you might reshuffle your guys to perform some tasks and then you put people back in the school and can still use the books you've built up. It is easier for you to keep track of as you are deciding when they are ready to be taught. Otherwise you might pop a free colonist back in that you had chosen a profession you don't need anymore. Now its easy to understand at a glance.
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