We present a fully working prototype of NOOT, an interactive tangible system which supports (sharing of)
moments of reflection during brainstorms. We discuss the iterative design process, informed by embodied situated cognition theory and by user studies in context using various versions of the prototype. Apart from a potentially useful product, NOOT served as a research-tool showing how physical materials and social interactions scaffold people’s sense-making efforts, and how technology might fit in to support this process.