Schools will be reopened based on the epidemic situation in their area, Treenuch said.
The ministry will present their assessment to the Centre for Covid-19 Situation Administration next week.
The initial criteria was that schools located in areas without an outbreak for at least 2-3 months would be allowed to reopen for full on-site learning, while students who have yet to receive vaccine doses can return to school but under strict health measures.
Some 1.3 million of 4 million students have received at least one dose of vaccine so far.