A levels are the most common Level 3 academic qualifications. Most students study three or four subjects and there are more than 40 different A levels available and the range depends on the school or college you attend. At some schools and colleges you can study a mix of A levels and BTEC level 3 qualifications. AS levels are now standalone qualifications and will no longer contribute to the overall A level grade.
It is important to choose A levels you enjoy but also to consider how they impact which university courses will accept you. Some universities require certain A level subjects to study a particular course.