I think the important learning for the child's development is how to think algorithmically or within the confines of a determined system. That application of s

I think the important learning for the child's development is how to think algorithmically or within the confines of a determined system. That application of systemic thinking to solve problems is so valuable in many ways throughout life, from determining how other systems work to just making smarter guesses about how to use new objects you've never seen before. Regardless if it's taught as theory, applied projects, or whatever, that's the really valuable skill IMO. Algorithmic/systemic thinking, combined with the basic principles of physics do wonders to get you through problems that life throws at you.