1, IB allows students to choose from six subject groups. At the same time, complete knowledge theory training, a research topic, a 4000-word paper, and participate in creativity, activities and services. Once these qualifications are met, students can get IB diplomas. However, some people may choose to take fewer courses to get a high school diploma and some IB certificates.

2.A -Level courses are limited, and students usually have to take 3 or 4 subjects. This is also a two-year course, and most people are pursuing it after getting a high school diploma. There are no compulsory subjects, so students are free to concentrate on the content related to the degree they intend to pursue. To apply for this qualification, most people need at least three A-levels.

3.AP course is an independent course, and there is no minimum number of students, so students can flexibly choose the number of students they want to study. But the school they attend may have regulations on this, including how many courses students can take. The range of subjects offered also depends largely on the ability of the school. AP courses really emphasize high-level thinking and writing skills.