.. in our world, so many teachers have the "answer".. some special placement/technique or way of singing everything through one vowel.. there's no magic bullet, and if anybody tries to sell somebody on quick fixes and the like, they're probably selling Lunar real estate too!
You'll be a good teacher.. just based on your humility alone.

"Trains, planes, automobiles.. you better have my DOUGHnuts.." -Delonte West