Design ides for Theory teaching studio layout

[tinctoria88]

Does anyone have experience setting up studio for teaching music theory?  How to arrange it, what equipment, etc?  We're thinking of converting a 12 X 16 foot garage into a music teaching studio focusing on teaching music theory.  Any ideas for floor layout plans, how best to arrange students within classroom, etc. would be greatly appreciated.  We've never set up a private music studio in a dedicated space and would like it to be efficient, inviting, inspiring, but not fussy.  Students ages would probably be 12 yrs & older.  Thanks for any recommendations!