Our mission is to encourage young women to pursue science, technology, engineering and mathematics (STEM) careers. Through Expanding Your Horizons (EYH) Network programs, we provide STEM role models and hands-on activities for middle and high school girls. Our ultimate goal is to motivate girls to become innovative and creative thinkers ready to meet 21st Century challenges.

The Network's programs are developed based on the following assumptions:
In order to increase the participation of women in mathematics, science, and engineering careers, there must be an increase in the pool of qualified women.
In order for young women to have the option to enter mathematics, science, and engineering careers, they need to choose to take the appropriate mathematics and science courses in high school.
Intervention strategies are needed that increase the participation of girls in mathematics by nurturing enjoyment and confidence in mathematics, by connecting the value of mathematics to career opportunities, by providing career role models, and by actively encouraging girls to persevere in mathematics coursework.