I can't address your soap query but may I ask why you are going to do CP? (I only assume CP because of the curing time you mention). 6-7 year olds generally have the attention span of gnats and if you give them something they can't use for 4-6 weeks, they will probably forget they even made it. If you did M&P they could possible stamp their initials in it, or add a nature project from camp and truly have a memory they could take home and use right away.
Yes, I will be making CP for the kiddos. I only make CP, have never even dappled in M&P nor do I have any desire to so I definitely wouldn't want to teach something that I'm not completely familiar with.
I will be melting and mixing the water/lye and oils at home. Only will be combining the two mixtures and bringing them to emulsification/light trace, then molding. I plan on doing 1 color and an essential oil. I'm really not all that concerned with losing their attention as it really is all on how you engage your audience, taking their age into consideration. Obviously I wouldn't talk to you in the same way I would talk to them. You just have to keep it interesting.
I understand your concerns about them losing interest, and you may even be thinking about safety and me getting distracted. But there will be several other adults that if a child is out of line or being disruptive, they can and will be removed. I talk to myself all the time when I'm making any products as if I'm teaching someone how so I'm pretty on point when talking.
We've already set guidelines and I believe the lady organizing the camp already has a permission slip for their parents to sign just letting them know what we will be doing and that there will be safety precautions that everyone will have to take.
With that said, I'm very fortunate that where I live, is a very tight-knit family oriented community. I believe that the families that will be at this camp are all very focused on their children and have no doubt that this soap making group will be nothing but fun, educational, and memorable.