I loved it. Your poem gave me a warm feeling and reminded me when I used to teach water color to a 6th grade class on Fridays so the teacher could have prep time.

It is rewarding to wake a mind and to instill a love of anything new.

You might want to think about the form. It would have been easier to read the rhythm.

I love your last line the best. lol I'd have put 'teach' in instead of preach, just because some people get really negative about that word.
Thanks for sharing this with us.
love, LinnAnn