Segal, Elizabeth (arizona State University), Gerdes, Karen (arizona State University), Steiner, Sue (california State University Chico) (2) Schneider, Gary (california State University Monterey Bay) (1) Graham, Jeffrey A (1) O'neill, Barrett (university Of California (1) Anton, Howard (drexel University), Rorres, Chris (drexel University), Kaul, Anton (california Polytechnic State University) (1)