Dont give em grades bro! Just dont! bad idea! Compliment them or tell them they need work bit NO gradz!!
Az for me I picked up the sticks to avoid school, Im not good at it. So gradz dont sound like a good idea. Now confidence maybe try teaching a cousin, son, daughter, friend, for free and see how it oges. Ya know the whole guiney pig idea? And Advertisement. Well Facebook, add in the newspaper, call the radio, word of mouth (church is a good place to get that one goin)
Itll probly be slow at fist but hopefully itll pick up!