So you guys will join a mining pool or something like that? What's the hash then? If it's too small I think you'd need a very long time just to find some sats. Doing faucet might be faster if your goal is to get a few satoshis imo. But if it's just for learning and seeing how to work things out, I guess it is worth a try.
I think that they wouldn't learn a lot with just faucets, I am still skeptical but this could be a good idea on introducing children to bitcoin and bitcoin mining. I think OP needs to provide some credentials and a lot of proof because if you have been lurking in this forum for a long time then you should know by now that the people of this forum have their guards up against people that are asking for money for a heart tugging reason.