South Korea began reopening schools recently after closing them several months ago to try to stem the spread of the coronavirus during a worldwide pandemic — and it is employing new social distancing and prevention measures in an attempt to continue to keep the country’s death rate from covid-19 remarkably low.

In late February, South Korea had more diagnosed covid-19 patients than any country other than China. A swift and tough program of contact tracing, isolation and other measures contained the virus. South Korea reports that fewer than 300 people have died of covid-19.

The country has been slowly reopening schools in the past week, and these pictures show how some of them are trying to keep students and teachers from contracting the disease.