Executive Members

Mark Kissel

Executive Officer

Mark Kissel has taught secondary and adult student’s guidance, music, and geography for over 20 years with the Toronto District School Board. Most recently he was at Victoria Park CI, and previously taught at the Virtual School, Burnhamthorpe Adult Learning Centre, Silverthorn CI, Newtonbrook SS, CW Jefferys CI, and Parkdale CI. He has also taught summer school, been an AQ course designer and instructor, an adjunct professor at two universities, and wrote curriculum and exemplars for the TDSB in the arts and guidance. Mark has held multiple positions of responsibilities, coached and convened many sports, produced and conducted numerous arts productions, and advised several clubs and councils.

Mark has been involved with OSSTF for many years. At his schools, he has been a Branch President at two different locations, and was a Staff Workload Representative. He has organized local strike action activities, and served as a Health and Safety Representative. With OSSTF Toronto, Mark has sat on all bargaining unit committees: Chair of Elections Commission; Chair of Professional Development; elected Chair of Collective Bargaining; elected Member of Budget, and; Member (Rotating Chair) of Constitution and Steering. With the Toronto District, Mark was an elected District Executive Officer-at-Large; elected Member of Finance; Member of Constitution, and; Member of Communications and Political Action. He attended AMPA multiple times as an elected delegate, and previously served as a whip.

Provincially, Mark was an Election Organizer, a full-release position focusing on the June 2022 Provincial Election. He is a member of the Speakers Bank, chairing local and district bargaining unit meetings throughout the province, as well as Provincial Council. Mark is a presenter for two Educational Services workshops, Cultivating Resilience and Allyship, and is a member of the Faculty of Education Advisory Workgroup, representing OSSTF to OISE/UT and the Ontario Teachers’ Federation (OTF), where he is the past Chair of both the Teacher Education Liaison Committee at OISE/UT as well as the Teacher Liaison Committee at OTF. He was a member of the Educational Services Committee, and is the past Chair of the Parliamentary and Constitution Council, where he helped steer AMPA and Provincial Council, and reviewed constitutions.

​Mark was honoured to be first elected as an Executive Officer in May 2022, and again in May 2024.

Email: mkissel@osstftoronto.ca
Phone: 416-393-8900 x 240


  • Professional Development Committee Executive Liaison/Educational Services Officer
  • Staffing Officer
  • Grievances
  • AMPA Co-Coordinator
  • Constitution/Steering Committee/AGM Liaison Back-Up
  • District Constitution Committee/DGM Liaison
  • Faculties of Education Executive Liaison
  • New Teachers' Events Co-Coordinator
  • Pensions Workshops Back-Up
  • Social Events Planning Coordinator
  • TTBU Alternate Heath & Safety Inspector


  • Agincourt C.I.
  • Bloor C. I.
  • Cedarbrae C. I.
  • Central Technical School
  • Dr. Norman Bethune C. I.
  • Delphi Secondary Alternative School (ASE 2)
  • Forest Hill C. I.
  • George S. Henry Academy
  • Inglenook Community School
  • L’Amoreaux C. I.
  • Lakeshore C. I.
  • Maplewood H. S.
  • Monarch Park C. I.
  • School of Life Experience (SOLE)
  • SEED Alternative School
  • Sir William Osler H.S.
  • Stephen Leacock C.I.
  • Subway Academy I
  • Toronto District S.S.
  • West End Alternative School
  • Westview Centennial S. S.
  • Winston Churchill C.I.