Home | St. Jude's Academy - The Best Private IB School in Mississauga, We’re different. As the leading university preparatory and IB school in Mississauga, our graduates are highly sought after. Our Primary Years Programme (JK - Grade 6), Middle Years Programme (Grades 7-10) and Diploma Programme (Grades 11-12) emphasize fundamentals and effective learning habits, resulting in 100% of our graduates being accepted into the university of their choice.