Remote learning was far from ideal, but it did open the door for schools to approach the school day day in new ways. We explore the research on teen sleep and what that means for school start times, as well as the promise and peril of the four day school week. Research shows shortening the school week doesn’t necessarily improve student outcomes, but it may alleviate teacher burnout. Finally, we look at the history of the school bell, how it shapes learning and whether it’s time for the final toll.  Additional Reading: Students Can Get to Class Without Bells, But Schools Need to Adapt Three Reasons Teens Need Later School Start Times Why More Schools Are Considering a 4-Day Week Despite the Risk Sign up for the MindShift newsletter