Mathematics (2021)

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Educators should be aware that, with the exception of the Grade 9 mathematics course, 2021 (MTH1W), the 2005 Mathematics curriculum for Grade 10 and the 2007 Mathematics curriculum for Grades 11–12 remain in effect. All secondary mathematics courses for Grades 10–12 will continue to be based on those documents. All references to Grade 9 that appear in The Ontario Curriculum, Grades 9 and 10: Mathematics, 2005 and The Ontario Curriculum, Grades 11 and 12: Mathematics, 2007 have been superseded by The Ontario Curriculum, Grade 9: Mathematics, 2021.