The authors investigate technology, engagement, and student readiness as determinants of student learning in a blended synchronous learning environment. The experiment was conducted in two sections of a principles of marketing course where in-person and remote students simultaneously completed short concept quizzes using a mobile polling app. In-person students achieved higher quiz scores than remote students. GPA is a predictor of scores in both environments, and the effect is more pronounced for lower GPA students in remote locations. Student surveys identify focus and engagement as primary challenges to remote learning. Technology issues are secondary.