A Levels are known for developing in-depth subject knowledge and the English National Curriculum (of which A Levels are a part of) still remains the most popular curriculum choice with international schools around the world. Students usually choose three or four subjects, and take two years to study for these A-levels between the ages of 16 and 18. Pass grades are A* (the top grade), followed by A, B, C, D and E. One similarity between the IB Diploma and A Levels is that both qualifications are assessed by exams at the end of a two-year study period.
The IB Diploma is for students aged 16-18 and requires no specific preparatory classwork, so can be undertaken directly from GCSEs. It offers a broad curriculum made up of six subject groups – students usually study three at a higher level and three at a standard level.