Women are underrepresented on university courses and in careers in the field of science and technology. Gender-specific barriers impede or block the access of girls and women to scientific and technological areas. A key cause for this lies in processes of education and socialization, in which interests, abilities and behaviors are promoted according to predominant gender roles. This results in girls orienting themselves towards non-technical fields in line with society's predominating gender roles, ultimately limiting their potential and range of opportunities. Various studies dealing with coeducation and monoeducation as well as experience on diverse projects show, that opportunities geared specifically towards girls and young women can be especially effective in generating interest in scientific and technological subjects and broadening their orientation options in terms of university education and career choices.