Introduction : the quest for knowledge -- Setting the stage for inquiry : the physical environment -- A "thinking" environment that supports risk-taking -- An environment that promotes curiosity and questioning : for both children and teachers -- Environments that make children's and teachers' thinking visible : documentation as a support for inquiry -- An environment that supports teacher growth -- An environment that nurtures and supports relationships -- Inquiry in action : creating brave spaces -- Final reflections and an invitation -- Appendix: Loose parts and intelligent playthings categorized by schema.