Educators around the country were plunged into a massive experiment with virtual learning last year, when more than 50 million K-12 students were sent home at the start of the pandemic. Many were soon knocking on the door of the father of online education, Sal Khan, looking for help. The founder and CEO of the nonprofit Khan Academy, which provides free educational resources to anyone who wants them, says he was impressed with the “heroic efforts” of numerous school districts to close the digital divide, by providing device and internet access for all who needed it. Now Khan hopes school leaders “are going to be thinking long-term” and will seize the moment to create what he considers much needed system-wide change.