I contacted the elementary schools in my city and let them know what I was offering. Out of 9 schools I talked to, only one asked for a background check. Actually (ahem) I never did turn it in...oops. Anyway, I was at that school several times teaching the ffk class. Nobody even asked me about it. Now that I think about it, the principal at that school went out of his way to let me know how much he appreciated what I was doing. EVERYONE of the teachers loved it. One less lesson plan that they have to figure out.