This is where schools are back in session, and where kids are still learning virtually

About a third of school districts across the nation have resumed in-person learning, while just 1 in 10 school districts continue teaching students entirely remotely, according to a new tracker launched to measure the way local schools adapt to the coronavirus pandemic.

Some trends: The data shows that school districts across the South are the most likely to have sent children back to school already, while California has the highest concentration of districts that remain remote.

But the lack of a clear national strategy for reopening schools, a yearlong problem that is only beginning to be addressed as the Centers for Disease Control and Prevention roll out new recommendations for distancing, air circulation and sanitation requirements, has kept most school districts in some type of hybrid learning environment.

A majority: The data, maintained by Return to Learn, a joint project of the American Enterprise Institute and the College Crisis Initiative at Davidson College, shows 54 percent of school districts still operating school in some kind of hybrid model, in which kids attend class in person some days and virtually on others.