How can we judge educational discourse that assumes that quality mathematics and science education can be the norm for all students rather than the exception? This session will focus on design and development work in science and mathematics that is beginning to achieve this goal--work that is revealing new ways to think about science and mathematics learning and teaching environments and challenging educators to think in new ways about what all students can achieve. The session will focus particularly on new technologies that create high-quality learning and teaching environments for students from diverse communities by extending their social networks as well as by providing new tools for exploring their natural world.