An investigation of the dimensions of learner diversity: material (class, locale), corporeal (age, race, sex and sexuality, and physical and mental characteristics) and symbolic (culture, language, gender, family, affinity and persona). Examines social-cultural theories of difference, as well as considering alternative responses to these differences in educational settings - ranging from broad, institutional responses to specific pedagogical responses within classes of students. The course also focuses on the application of learning technologies and new media to meet the needs of diverse populations of learners. Its main practical question is, how do we use educational technologies to create learning environments in which learning experiences can be customized and calibrated to meet the precise needs of particular learners? Topics include: universal design for learning, differentiated instruction systems, and adaptive and personalized learning environments.