I'm so glad to see this series!!!
I've been asking my Aunt who is a calculus teacher (and every other kind of math, geometry, or algebra) to try explaining to me some of the calculations I learned to do in KSP in a bit better detail than I already understand them. But I think the involvement of mass and energy threw her off =) she referred me to a "free-physics lessons" webpage which is actually really awesome. I absolutely LOVE seeing intelligent stuff like this out there. 'Makes me a little less concerned for what all my son is wading through on YouTube =)
Keep them up! If nothing else, then for Skye (hope I got her name right), Orion, and my son Logan!