He adapted the education system for his immigrant students, and the provincial government of Manitoba soon officially adopted his method of teaching.

[2] Sisler High School today has a large ESL (English as a Second Language) program.

The school regards this to be a high honor, as it even edged out distinguished co-nominees—retired lieutenant-general, The Honourable Roméo Dallaire, and Inky Mark, member of parliament.

Sisler students have won the Harry Hood Memorial trophy twelve times.

[5] In 2002 Sisler High School's partnership with IBM was recognized with the "Conference Board of Canada RBC Royal Bank Partners in Education" Award.

[7] On 18 October 2005, four members of Sisler High School's Chamber Choir joined the Winnipeg Boy's Choir to sing "O Canada" at the official welcoming ceremony of Governor General Michaëlle Jean at the Legislative Assembly of Manitoba.

[10] Sisler High School also offers sports such as track, hockey, football, darts, rugby, volleyball, soccer and basketball, cricket, curling, and golf.

They mainly work with war-affected children through "War Child Canada", holding fundraisers for this organization.