Meaningful computer science learning happens when students feel comfortable taking risks in front of their peers. Over the last four years, Upperline Code has facilitated more than 100 immersive CS courses for high school and college students and has trained approximately 400 CS educators in CS pedagogical best practices. In the feedback from all of these student-facing courses and educator training sessions, participants comment most frequently on the positive, supportive culture of risk-taking that Upperline Code creates. The cornerstone from...