Frequently asked questions

Q: Are there any limits on class size in Ontario?

The Ministry of Education has set guidelines for class size in Ontario. These guidelines vary, depending on the grade level of the students.

The average class size  must be 25 students or less in the elementary grades, and 22 students or less in the secondary grades. Because these are board-wide averages, individual classes may have more (or fewer) students.

In 2004, the government introduced a hard cap (a firm maximum number) of 20 students per class for the primary grades (kindergarten to grade 3).  The hard cap does not apply to the new full-day kindergarten program. Because there are two educators in the classroom, class sizes can be larger than 20 students. If there are 15 students or fewer in a full-day kindergarten class, only one teacher is required.