As the first country outside China to face a major outbreak of the virus, South Korea's schools have seen various stages of shutdowns, remote learning, and hybrid arrangements.
The fully reopened schools come as part of South Korea's "living with COVID-19" plan, adopted after it reached its vaccination goals last month. Overall 78.8% of the population is fully vaccinated, though that number drops to 12.8% for those ages 12-17.
Schools still can move back to remote learning or other hybrid arrangements if the coronavirus situation requires it. Precautions such as masks, dividers and other distancing measures remain in place.