Changing how the world thinks about girls in STEM – and how girls think about themselves. The fields of Science, Technology, Engineering and Math (STEM) are critical to the continued economic success of the USA. However, there is a gap between the importance of these fields and the proportion of unfilled jobs in these areas. It is projected that by 2018, 2.4 million STEM jobs will remain vacant. This is further compounded by the small number of women going into these fields. Studies point to many factors contributing to the gender gap in STEM, including inherent bias, negative stereotypes, educational inequality and lack of female mentors and role models. Studies also show that simply opening the doors is not enough. Girls need supportive, experiential environments where they feel invited and encouraged to join the fun of discovering the world around them, and where they can prove to themselves that they genuinely like and can be good at STEM. CIJE-STEM4Girls seeks to break gender barriers by increasing the participation of girls, who are markedly underrepresented in STEM fields. Opening the door to opportunities until now closed to most Jewish girls attending day schools, CIJE-STEM4Girls encourages girls to explore science, technology, engineering, and math by providing them with excellent STEM education in our E2K afterschool programs and 2 year CIJE-Tech High School and Middle School electives as well as professional female role models, all-girl Capstone Events, and other STEM leadership opportunities. Empowering girls academically and economically, CIJE aims to change how the world thinks about girls in STEM—and most importantly, how girls think about themselves.