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So who is OSC and what do we do? Apart from our courses, what else do we do? We publish a specialist series of IB Revision Guides. Written by the teachers who teach on our Revision Courses. We now have more than 50 titles covering the majority of subjects and more are in preparation. So, this got us thinking and we reali.
By using this site you are giving permission to use cookies. ALL OSC PROFITS GO TO CHARITY - Read more. Boost your final grades through short intensive courses with IB teachers. Decide if the IBDP is right for you. Consolidate your year 1 learning and improve your confidence for year 2. Understand the IBDP and reach the required standard.