Glossary of Terms CAS The co-curricular programme entitled Creativity, Action and Service that is associated with the Diploma Programme. DP The Diploma Programme that runs in Grades 11 and 12 and involves students taking a specific range of courses and other activities. EE The Extended Essay undertaken as part of the Diploma Programme. It is an independent, self-directed piece of research. External Assessment Examinations undertaken at the completion of IB courses. HL Higher Level course, taken over two years within an allotted time of 240 hours. IBO International Baccalaureate Organization IB Certificate A certificate awarded by the IBO after a student who is not enrolled as a diploma candidate completes the requirements for a single course. IB Diploma The accreditation granted by the IBO after a student successfully completes six IB courses, the Theory of Knowledge course, the Extended Essay and the CAS component. Internal Assessment Course work, not including the final examination, that is graded by Ridley teachers and moderated by an IBO appointed moderator. OSSD Ontario Secondary School Diploma SL Standard Level course, taken over two years within an allotted time of 150 hours. TOK The Theory of Knowledge course undertaken as part of the DP. This course involves critical reflection on knowledge and knowing.
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