The gender gap in computer science classrooms will continue to persist until we can create the supports needed for all girls to develop positive STEM identities. While there is abundant research on this problem, educators need specific strategies to put it into practice in their classrooms. Since 2010, the SciGirls Strategies have been used by over 3,000 educators in STEM and CS classrooms. After two years of reviewing research, writing, and evaluating, the updated SciGirls Strategies are available. The SciGirls...