IB score IB Diploma 36 points overall or IB Higher Level Certificates 7,6,6. Alternatively IB Diploma 34 points overall plus A in the Extended Essay or IB Higher Level Certificates 6,6,6 plus A in the Extended Essay. IB requirements A minimum of Higher Level grade 6 in two of: Biology, Chemistry, Mathematics Analysis and Approaches, Mathematics Applications and Interpretations, Physics, Psychology, Geography and Environmental Systems and Societies. The specific combination of subject required depends on your chosen stream – see Year One for a full list of required subjects by stream. If you would like to study a stream requiring Mathematics, Higher Level grade 6 in Mathematics Analysis and Approaches is required. Higher Level Mathematics Applications and Interpretations is not acceptable in lieu of an A Level Mathematics requirement, but is permitted as a science subject for streams where Mathematics is not required.