Parents need to know that although this documentary/reality series is very mild and engaging overall, real kids are its focus, and their experiences and misconceptions aren't always filtered. Some younger kids may be startled to learn, for example, that "if you touch fire, even a little bit, then you get burned all over and then you die" -- which is how one of the kids on the show responded to a question about fire. The camera also catches moments of disappointment or emotion that the teacher doesn't always see, which could worry younger viewers.
Positive messages:It's kindergarten! Kids are encouraged to share, raise their hand, respect one another, and so on. The students are a laudably diverse bunch.