Royce Family Professor of Teaching Excellence and Professor of Economics Emily Oster speaks to NBC News Correspondent Heidi Przybyla about the factors that make a school safe for reopening, including proper ventilation.
February 15, 2021 Yahoo News
Royce Family Professor of Teaching Excellence and Professor of Economics Emily Oster speaks to NBC News Correspondent Heidi Przybyla about the factors that make a school safe for reopening, including proper ventilation.