When I was in Kindergarten, we weren’t all that worried about physical fitness. I do remember we used to sing the song this review’s title comes from (originally from Romper Room, which I doubt very many of you remember, but here’s an Australian version, in case you need an earworm), but that was as far as actual exercise went in our classroom. Fast forward a dozen years or so, to about a decade ago, and now I’m teaching preschool in Cambridge Mass, basically in Harvard’s […]