The COVID-19 virus brought on a public health emergency that massively disrupted school systems and learning nationwide. During the 2020-2021 school year, many local education agencies (LEAs) in Pennsylvania and other states adopted remote learning to help slow the virus's spread. However, remote learning came with challenges for students, families, and LEAs. These challenges included very practical ones like not having a reliable internet connection or the correct link to log into classes, as well as fatigue from so many remote meetings and feelings of social isolation. This brief examines remote learning in Pennsylvania and its role in shaping education outcomes and COVID-19 case rates in local communities during the 2020-2021 school year. Key findings for the 2020-2021 school year: (1) Vulnerable groups of students were more likely than students overall to attend LEAs where the predominant instructional modes included remote learning; (2) The same groups of students were also more likely to be in LEAs where larger shares of the student population had trouble accessing reliable internet; (3) More remote learning was associated with lower assessment performance in grades 5-8, especially in schools with higher levels of economic disadvantage. It was also associated with lower suspension rates in grades 6-12 and did not appear to harm or help graduation rates; and (4) Remote learning in high school was associated with lower subsequent COVID-19 rates within an LEA's boundary, suggesting it had an important public health benefit. [Contributions from Candy Miller, Rhonda Johnson, and Rosemary Riccardo.]