To supplement my son's learning, during his morning pages we have started having Dharma Talks. This is that time where we read some of our children's books on Buddhism and talk about what it means to follow the Eight Fold Path and to practice being a kind and compassionate person. I'm lucky in the fact that I can surf the Internet with relative ease and find what I'm looking for if I dig hard enough for it (granted, I shouldn't have to dig for it, but again...no soapbox), so I'm able to locate some coloring pages and such and we already have a pretty good library on Buddhist picture books for kids (which were also rather difficult to find at times).
Although we've only been doing these Dharma Talks for a few days, I feel as though we are making some progress on his attitude and I feel better about educating my son about our religion. We don't make it to the temple as often as we'd like for services (it's rather far from where we live), so being able to talk with him about what it means to be Buddhist and how we can become better people through Buddha's teachings really gives me a sense of comfort that I am truly giving him the education that he needs and deserves.