“…In recent decades, the educational role of museums and other informal settings has become increasingly recognized by educators, researchers, and policy makers (Bell, Lewenstein, Shouse, & Feder, 2009;Falk & Dierking, 1992;Hein, 1998). While there is currently a wellestablished body of literature related to informal science learning, this article contributes to a small, but growing, field of research on the nature of informal mathematics learning (Cooper, 2011;Guberman, Flexer, Flexer, & Topping, 1999;Gyllenhaal, 2006;Mokros, 2006). While for many years the classic exhibition Mathematica, developed by Charles and Ray Eames and first installed in 1961 in Los Angeles, was the lone example of a major mathematics exhibition, science museums are rapidly developing mathematically oriented exhibits and experiences.…”