Choosing the right IB school matters just as much as choosing the right subjects once you’re enrolled — but rather than chasing a general “best schools” ranking, which changes constantly, is rarely based on complete or current data, and can’t account for your individual circumstances, it’s far more useful to evaluate any school you’re considering against a consistent set of practical questions.
Check the Subject Offerings Directly, Not Just the General Reputation
Not every IB World School offers every subject, and considerably fewer offer every subject at both Higher and Standard Level. If you already have a general career direction in mind, see our guides on subject combinations for Medicine, Engineering, or Law, and confirm directly that a school under consideration actually offers what you’d realistically need before weighing anything else about it.
Ask About Results History, Not Just General Reputation
A school’s broad reputation can lag well behind its actual current results, in either direction. Ask directly — most schools will share this on request — about average Diploma scores over the past several years, and specifically how results compare across different subject groups, since a school strong in humanities but comparatively weaker in sciences matters very differently depending on your own intended direction.
Ask About Genuine Support Structures, Not Just Their Existence
How much structured support genuinely exists for the Extended Essay — dedicated, regular supervision time, not just occasional check-ins squeezed between other duties? How is CAS actively tracked and supported, rather than left to informal, ad hoc reminders? Is there a genuine, planned revision programme before final exams, or is exam preparation left entirely to individual students to organize themselves? These structural, day-to-day details often matter considerably more to your actual two-year experience than a school’s overall prestige or name recognition.
Consider Class Sizes and Realistic Teacher Availability
Smaller HL class sizes generally translate into more individual attention, which is particularly valuable for subjects with heavy Internal Assessment components requiring one-on-one feedback. Ask specifically how accessible teachers genuinely are outside scheduled class time for the kind of individual support IAs and the Extended Essay routinely require.
Talk to Current Students Directly, Not Just Admissions Staff
Where genuinely possible, speak directly with current IB students, or recent graduates, at any school you’re seriously considering — they’ll give you a far more honest, grounded picture of actual workload, support quality, and day-to-day experience than official admissions or marketing materials typically will.
Why We Deliberately Don’t Publish a Ranked List
Rankings of “best” IB schools tend to be based on incomplete, self-reported, or quickly outdated data, and what’s genuinely “best” depends heavily on your own subject interests, learning style, and personal circumstances — a structured framework of the right questions to ask serves you far better than a static list that can’t account for any of your specific situation.
Final Tip
If you’re choosing between a small number of specific schools, request their most recent average Diploma score and subject-level results directly from each — schools genuinely proud of strong results are usually happy to share this information readily, and noticeable reluctance to share it is itself useful, informative information worth factoring into your decision.