This monograph addresses the gender gap in science and engineering. Case studies of women in marginalized science and engineering settings are presented including an innovative high school genetics class, a school-to-work internship for prospective engineers, an environmental action group, and a nonprofit conservation agency. The high proportion of women in these settings were successful at learning and using technical knowledge, advanced in roughly equal percentages to men, and generally enjoyed their work; however, these same women enjoyed little public prestige and received significantly less financial compensation. The book expands our conception of scientific practice as it reconfigures both women's roles in science and the meaning of science in contemporary society. (Author/WRM)