Schools abruptly ended face-to-face instruction in March 2020 and transitioned to emergency remote teaching due to the COVID-19 pandemic. We surveyed teachers across the United States between March and April 2020 to understand their experiences during this time in our history (n = 249). Linear regression analysis was used to examine relationships that existed between teacher-level, school-level, and learning modality-related variables and teacher self-efficacy. Teachers in Title 1 schools reported lower levels of efficacy. Elementary teachers, as well as those that initially relied on instructional packets during the transition to remote instruction reported significantly lower levels of efficacy for classroom management.