On March 13th, 2020, a proclamation declaring a national emergency concerning the Novel Coronavirus Disease (COVID-19) outbreak would require all educational institutes to execute an indefinite distance learning plan. Instructors immediately pivot while providing students with rich and relevant learning experiences. This study compared overall course achievement between students enrolled in traditional synchronous online business calculus courses and a large section (120 students) using the flipped model with embedded peer support. Results showed students in the large section had significantly higher passing rate and a narrower achievement gap between the underrepresented minority students and their counterparts.