Demo Day is a livestreamed, nationally publicized event where students in the current cohort present their work to an audience of their peers, family, community, and investors. Students choose from a broad spectrum of industry problems, and develop technical solutions to these problems using concepts from Calculus, including Limits, Derivatives, Optimization, Integrals, and Area/Volume principles. Instead of traditional grading, students are assessed on how compelling their presentations are to the audience, and crowdsourced evaluation.