Pnas Science Sessions

School enrollment during COVID-19 Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Micah Baum describes how public school enrollments in the US changed during the COVID-19 pandemic. In this episode, we cover: • [00:00] Introduction • [00:54] Micah Baum, an economist at the University of Michigan, introduces school districts’ three modes of learning in fall 2020: virtual, in-person, and hybrid. • [01:31] Baum explains the reasons for studying public school enrollment changes between the 2019-2020 school year and the 2020-2021 school year.  • [02:51] Description of the data sources used in the study.  • [03:50] Explanation of the changes in enrollment numbers betwee