Notes like this, is why I bust ass like I do :)
I’m glad the gift will be helpful. It is our pleasure and the least we can do for all you have done for XXX. She would never have made this kind of progress without you. You have made and are making a real and positive life-long difference for her. We are all so grateful to you. One day when XXX is asked by someone to name a teacher who made the biggest impact in her life, she will without hesitation say, Ms. XXX.