Hollingworth is a really fantastic preschool. We always enthusiastically recommend it to all our friends with young children. The activities they plan for kids are extremely thoughtful and stimulating, and the teachers and director are extraordinarily dedicated. They explore certain themes (e.g., Arctic/Antarctica) and go really deep on them, involving social/emotional development, literary skills, math/science skills (e.g., measuring the length of a polar bear). Our daughter simply loves Hollingworth and constantly surprises us with the breadth of knowledge she's learned at school. My sense is that Hollingworth has more advanced topics and curriculum than the vast majority of kindergartens.