TORONTO -- In-person classes will resume today at schools in three Ontario COVID-19 hotspots.

School boards in Toronto, Peel Region and York Region are restarting in-person lessons after a stretch of online learning that began in January as part of a provincial lockdown.

The three regions are the last in Ontario to have students return to physical classrooms -- the provincial government allowed other regions to reopen shuttered schools in phases over the last few weeks.

A more detailed COVID-19 screening form must now be filled out by students or their guardians every day before coming to school.

Students in Grade 1 and above will also be required to follow provincial health guidelines and wear a mask whenever they're indoors and during outdoor recess when physical distancing is not possible.

The province is also expanding asymptomatic COVID-19 testing at schools.