the eye of Nova's mind

Alternatively to what rmeidaking suggested, pick a school and offer to teach a class (a one-hour mini-class) on the subject. My grandmother is part of a speaking group of little old Jewish ladies who go to high schools and talk about their experiences during WWII, and she finds it really rewarding, and the kids at least SEEM engaged. Even if you can't really engage every student, you'll probably capture a few kids' attention.