The government announced in the spring that high school class sizes would rise from an average of 22 to 28 students over four years.

Ontario's new sex education curriculum retains many elements of a previous Liberal government document that sparked controversy and that the Progressive Conservatives had slammed as ideological.

Education Minister Stephen Lecce is expected to make the announcement and will highlight the new plan after the government conducted months of consultations.

The study found teens who are sexting are four times more likely to be having sex, five times more likely to have multiple sexual partners, and half as likely to be using contraception.

The province has released the broad lines of the new sex-ed curriculum in an announcement that also lays out its plans for other aspects of the education sector, including class sizes and teacher hiring.

The court said some of the public statements made were "ill-considered," but did not constitute an infringement of the charter.

The Elementary Teacher's Federation of Ontario is an intervener in a human rights challenge launched by an 11-year-old transgender girl fighting the repeal of the curriculum.

The 11-year-old, identified only as AB, testified today before Ontario's human rights tribunal in a case focusing on how rolling back the curriculum impacts LGBTQ students.

The government's repeal of the curriculum brought in by the previous Liberal regime is also subject to a court challenge.

Ontario elementary teachers say they have taken the government to court over the sex-ed curriculum in part because of a warning to educators that came along with it.