Here is the Ministry of Education chart that describes all the necessary courses to graduate from an Ontario Secondary School.  The addition to this is that at St. David students are required to take a Religion course every school year.  The Grade 9 and 10 Religion courses count as Electives.  The Grade 11 Religion credit can count as the Group 1 Compulsory credit.  The Grade 12 Religion credit (4M) can count as one of the 6 courses to apply to university with.