Impact of Class Size Increases

Modelling the Effects on School Programs Full Report

On March 15, 2019 the Ministry of Education released a B-Memo proposing an increase to average secondary class size requirements from 22 to 28 students and on April 3, 2019, the Ministry released an SB-Memo to school boards outlining the process for the calculation of attrition protection funding.

The findings are based on simulated results received from 23 teacher bargaining units encompassing 60 schools.

Methodology for determining Effect on an Individual School

OSSTF/FEESO developed a methodology to estimate effects on individual schools by the end of the 2022-23 school year based on the impact from increasing the average funding benchmark from 22:1 to 28:1. To determine an estimate, local teacher bargaining units were asked to:

  • Select three (3) schools of varying sizes in the Board.
  • Using current school year (2018-19), determine the number of full-time equivalent (FTE) teachers assigned to credit classes.
  • Estimate that 25% of FTE teaching positions in credit classes will be lost by the 2022-23 school year.
  • Using a school list of teachers currently assigned to that school, identify and total those teachers with a seniority date of 1997 or earlier. These are considered to be the retirees by the end of the 2022-23 school year.1
  • If the estimated loss of teaching positions by end of the 2022-23 school year is not fully covered by the estimated amount of retirees, then lay-offs will be anticipated.  Lay-offs normally involve the least senior teachers in a school.
  • Of those retiring and/or laid-off teachers, their qualifications (basic, additional) were considered to identify which subject areas may be jeopardized, in theory, as a result of no longer having these teachers.