Community Participant

We are getting ready to talk about Canvas for the next school year. This year we have maybe 30 teachers using Canvas, our first year, and probably tripling that number next year. 

I'm wondering how far you should go with sub-accounts.

Is having one sub-account for science enough? Should we take it deeper with sub-accounts inside science for chemistry, physical science, biology, etc?

Is there any advantage or disadvantage for having sub-accounts inside the sub-account?