Jim Barta is professor and dean of the College of Health Sciences and Human Ecology at Bemidji State University, USA. He has served on the boards of several national math organizations, and he sponsors and participates in professional development for math teachers in rural communities around the world. Ron Eglash is a professor of science and technology studies at ... Read moreRensselaer Polytechnic Institute, USA. He is the author of African Fractals: Modern Computing and Indigenous Design, and his Culturally Situated Design Tools software provides students with math and computing education based on indigenous and vernacular arts. Cathy Barkley is an emeritus professor of mathematics at Colorado Mesa University, USA where she also served as an assistant vice president for academic affairs. She has taught art, science, and mathematics to all levels of students from K–16, and she still teaches her favorite course, “Ethnomathematics”. Show Less