On Monday, five-day classes resumed in schools across the country.
Sindh rejected the decision and decided to continue holding classes on alternate days.
Punjab said that week-long classes will not begin in Lahore, Rawalpindi, Rahim Yar Khan, Multan, Sialkot, Faisalabad and Gujrat because of the rising coronavirus cases.
Balochistan and Khyber Pakhtunkhwa have, however, begun regular classes.
Here's a timeline of schools in Pakistan during the coronavirus: