Different value to different lessons

[Mazzorano]

Hey, I'll make it clean and short. I have an idea of making lessons a bit more rewarding: instead of granting the usual 10 coins per lesson, maybe harder lessons (like verbs, which are the hardest part of any language) can be worth more (say, up to 20 points) and easier lessons (like regular nouns) less than 10, maybe 5 coins.

Just an Idea...