Another recommendation for kids that enjoy Montessori-style learning pedagogy but are HG--
Charlotte Mason.
You can easily adapt the pedagogy to (IMO) better suit this "learning by discussing" model of child. We transitioned very smoothly from Montessori to Charlotte Mason (while DD was learning to read) to a more mixed/eclectic homeschool (with 'centers' or unit studies) and some WTM methodology during ages 3-6.
We never included the religious instruction which is an integral feature of Charlotte Mason, but the rest of it fit my DD to a tee-- lots of nature exploration, gentle talks about sometimes very serious subjects, memorizing literature selections, discussing literature/science/math/social studies, drawing, etc.
As noted elsewhere, we even did some high-school level graphical analysis and statistics within our Charlotte Mason framework. It's pretty flexible.
I don't necessarily buy into the developmental timeline that it's based upon (any more than I do with WTM), but it at least ALLOWS for asynchrony in ways that more conventional approaches view as A Major Deficiency to be Remedied Immediately.
