Thank you for your efforts. I was thinking of starting a team myself in a couple of years when my children are older, and have seen other fledgling STEM programs struggle with the same issue.

Was the primary issue that parents didn't commit time at home working on the projects, or that the parents didn't commit enough time after-school? I've seen more struggles with the latter issue, and the only solution we are converging on is strictly limiting the number of participants to a more manageable size (e.g. 8-10 kids, starting with 1 grade).