Class size

What does the research say?

Ontario education policy includes class size guidelines for all grades, and a cap on class size for primary grades (kindergarten to grade 3). In this section, you will find information about the class size policy and its impact on schools, and research tracking class size over the past several years.

• 2010

  Ontario’s primary class-size reduction initiative: Report on early implementation

  Canadian Education Association, 2010 This study looked at the effects of implementing a cap on primary class sizes. There is evidence of benefit but the impact depends on whether teaching.

• 2009

  Research findings for parents: Effects of class-size reduction

  Canadian Education Association, 2009 The Canadian Education Association has paired with OISE to develop research summaries for parents. They review the mixed evidence on how class size affects achievement and.

• 2007

  Class Sizes in Ontario schools, 2007

  People for Education, 2007. Using data from the Annual School Survey, this report examines the effects of provincial class-size policy on Ontario’s elementary and secondary schools.