High school students in all but 24 of Ontario's school boards will be back in class full time in September, the province announced Thursday.

In those two dozen boards, students will attend class half the time, with a maximum class size of 15. They'll receive "curriculum-linked independent work" on days when they are not in school.

The province says it considered a number of factors in deciding which boards would open with the so-called "hybrid" model, including whether they are predominantly urban, the size and number of secondary schools and class sizes.

Here are the boards where high schoolers will be attending part-time:

— Toronto

— Toronto Catholic

— Peel

— Dufferin-Peel Catholic

— York

— York Catholic

— Durham

— Durham Catholic

— Halton

— Halton Catholic

— Waterloo

— Waterloo Catholic

— Thames Valley

— London District Catholic

— Ottawa-Carleton

— Ottawa Catholic

— Hamilton-Wentworth

— Hamilton-Wentworth Catholic

— Niagara

— Niagara Catholic

— Greater Essex County

— Windsor-Essex Catholic

— Conseil des écoles catholiques du Centre-Est

— Conseil des écoles publiques du Centre-Est

The Canadian Press