Kriston, thanks for the resources. E-beth, thanks for your insight. DS loves the book, "The Way Things Work". I definitely want to cover general concepts about motion, force, magnetism, etc. as they apply to everyday life and do some cool experiments.
DS has an easy time understanding these concepts on a basic level. The idea of adding the math component is to give his brain the workout that other kids are getting in school. I was considering doing ALECS or Singapore Math, but Physics just seemed a more enriching use of math to me. Now he does have major gaps in his math knowledge since he hasn't had formal math acceleration, but with the use of a calculator and his understanding of arithmetic and algebra, maybe it could work...
