One of the key issues in Alberta's ongoing teachers' strike is class sizes , but it's difficult to put precise numbers on just how large classes have become because the province no longer collects that data specifically.

Alberta used to publish class size data annually , detailing the number of students in every class at more than 1,500 schools across the province.

In 2019, the newly elected UCP government put an end to that practice .

The following year, the government also changed the per-student funding formula for school boards, which had tied funding growth to enrolment growth on an annual basis, in favour of a three-year "weighted moving average" (WMA) instead.

Larger school boards in fast-growing cities in particular have lamented the new formula since it was annou

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