Students wearing face masks in a classroom at the Marie Curie school in Hanoi, Vietnam, on May 4. | Manan Vatsyanana/AFP via Getty Images

Some students are even administering coronavirus tests on themselves.

After the coronavirus interrupted schooling for more than 1.5 billion children worldwide, some of them are heading back to the classroom — and offering lessons for American students and educators.

In Germany, students administer coronavirus tests on themselves to track if they have the disease or not. In Vietnam, children and adults get their temperatures checked before entering the school building and wear masks once inside. And in New Zealand, parents or students worried about returning too soon can delay returning until they feel comfortable.

These and other policies aim to help resume schooling safely and end the months of disruptions that experts say hurt students and caused excess stress for