Anyone know about MUSE mag.? Or another non-creationist one like it?

Yes, I found that site in my searches; I’m glad you posted it. I thought it was laid out very well and had interesting materials; though I couldn’t find any for the middle ages (12-14); I’ll have to look harder.

I will be looking into their materials further at my leisure. I hope they work well for you and your son. Maybe you could post about it when you’ve gone through it more as I’m sure there are others here that would be interested.