Officials with the Ontario Education Quality and Accountability Office say efforts to improve math scores just aren't adding up.
In the annual report, EQAO officials note math scores for Grade 3 and Grade 6 students have been sliding over the last five years.
Only 61% Grade 3 students assessed last year met the provincial math standard, down from 67% in 2014.
For Grade 6 students, only 49% met the standard, down from 54% in 2014.
The report also notes 56% of Grade 3 students and 52% of Grade 6 students believe they are good at math, but 78% are motivated to do their best in class, suggesting a positive mindset.
As for the high school students, the amount of Grade 9 academic level students meeting provincial standards remains high, while fewer than half of the students enrolled in the applied course met the standard.
Chair of EQAO Dave Cooke says, "the continued decline in elementary-level math scores suggests that Ontario’s Renewed Math Strategy is not having the intended impact. Parents, educators and policy-makers across Ontario will be looking at EQAO data, alongside other information, to understand what changes need to be made to support our students and foster accountability in our publicly funded education system."