geoff: jennifer christenbury's motto, never do for a child what they can do for themselves. >> you touch it. not me touch it, you touch it. they get the initial diagnosis of what's wrong, they see that as the end, and we see it as the beginning. geoff: crystal vaughn and her husband, bill, hesitantly left their daughter georgia with ms. christenbury and her staff at flat rock elementary in anderson county, when she was 3. the plan, at first, was to leave her for a few hours, a couple of days a week. >> 'cause we were very leery. geoff: didn't take ms. christenbury very long to earn their trust, and georgia's. >> if there's a new skill set that maybe our daughter has learned, she'll send us a quick note saying, georgia did this. geoff: like when she first began nonverbally communicating what she wanted on an i-pad, by touching a card. >> you tell me what you want. you want to change apps? ok. find the musician. where is it? all right. good job. we don't put any limits on the children. >> if i have to come early to pick her up, she's mad at me for geoff: all part of her spirit to be mobile