Nova Scotia relies much more heavily on the public school system than provinces such as Quebec.
Ontario union leaders say proposed increases to the number of students per teacher will hurt the quality of education in the province.
Provinces PISA scores in all three subjects are below the national average.
Quebec and B.C. have fairly simple public education systems, relying on independent schools to provide the bulk of educational choice.
Independent school enrolment reaches a high of 12.8 per cent in B.C. and a low of 0.8 per cent in New Brunswick.
B.C. spends 19.6 per cent less than New Brunswick per student—$14,768 versus $11,879.
Spending on public schools in Ontario increased from $25.5 billion to $27.9 billion.