If you can't go UP with a large enough berm, etc. how about down? What's your water table situation? Can you do a dug out patio/courtyard area for sitting and teaching in?
"The world is changed by your example, not your opinion." ~ Paulo Coelho
You guys wanna see my fabulous new place? Or do you wanna look at this tiny ad?
Escape to gardens and natural buildings (for free-ish) in Montana