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IB5 min read · reviewed 25 September 2026

IB Diploma vs Cambridge A Levels: a practical comparison for schools

The IB Diploma Programme and Cambridge International A Levels are two ways of running the last two years of school, and they ask different things of students, teachers and the systems that support them. This is a practical comparison of structure, assessment and workload, with what each means for a school's planning and where skodle fits.

The structural difference

The Diploma Programme is a single programme with a broad structure. Students take six subjects across groups, typically three at higher level and three at standard level, alongside a core made up of the extended essay, theory of knowledge and CAS.

Cambridge International A Levels are subject qualifications. A student typically studies a small number of subjects in depth, chosen from a wide list, and may take AS Level, the first stage, or the full A Level depending on the subject and the school.

Both are set and revised by their owners, the IB and Cambridge. Their current subject guides and syllabuses are the authority on specifics, so check them before quoting a requirement to a family.

Breadth against depth

The Diploma is broad by design: students continue languages, sciences, mathematics and humanities to the end of school, and the core adds research and reflection. A Levels are specialised: fewer subjects, studied further, which suits a student who already knows their direction.

Neither is inherently harder. The Diploma's difficulty is in the volume and coordination of concurrent demands; an A Level's is in the depth of a smaller number.

IB Diploma and Cambridge A Levels compared
AspectIB Diploma and A Levels compared
SubjectsDiploma: six subjects across groups plus the core. A Levels: usually three or four chosen subjects.
Core requirementsDiploma: extended essay, theory of knowledge and CAS. A Levels: none as a requirement of the qualification.
AssessmentDiploma: external examinations plus internal assessments moderated by the IB. A Level: mainly external examinations, with coursework or practical components in some subjects.
GradingDiploma: subject grades combine into a total with a small number of points from the core. A Level: a grade per subject.
FlexibilityDiploma: a set structure. A Levels: subject choice and, often, a staged route through AS.

Assessment and workload for students

Diploma students juggle internal assessments in most subjects, the extended essay, and CAS alongside their examinations. The deadlines cluster and they are set partly by the school, partly by the IB, so coordination is a large share of the job.

A Level students have fewer moving parts and a more predictable calendar, with heavier concentration on the final examinations and, in some subjects, coursework or practicals.

What each means for a school's planning

A Diploma school needs workflows for subject outlines, internal assessments and the core, plus a coordinator's view of who is on track, because a missed internal assessment deadline is a diploma outcome problem and not just a late piece of work.

An A Level school needs strong syllabus and assessment planning by subject, mock examinations, and clear handling of the exam series and entries, which are administered on Cambridge's timetable.

Where skodle fits

This section names our own product, so weigh it accordingly. The comparison above is true whatever software a school runs.

For the Diploma, skodle carries the parts a coordinator has to watch. Internal assessment, the extended essay, theory of knowledge and CAS are tracked as components per student, each with a supervisor, a status, a due date, milestones, drafts and a feedback thread, and the extended essay has its own supervision record. A rule-based risk view flags students who are falling behind. See the IB Engine and the IB school software page.

The limits. skodle does not hold internal assessment marks or criteria, theory of knowledge exhibition fields or Diploma subject outlines as structures of their own, and a predicted grade is only a value a teacher types in; it computes no prediction. It does not carry the official IB route for candidate registration and coursework submission: a readiness flag marks a candidate ready and nothing is submitted. For A Level schools it supports the school structure and the shared assessment, attendance and reporting layers, but a Cambridge syllabus is not modelled the way an MYP unit is, and it does not manage the exam entry process with Cambridge.

Questions to put to your own school

Which route fits your students and your staffing, rather than which is stronger in general?

  • How many of your students know their direction at 16, and how many need breadth?
  • Can you staff six subjects plus theory of knowledge, CAS and extended essay supervision?
  • What do the universities your students apply to ask for, and how do they read each?
  • Do you have the coordination capacity for the Diploma's deadlines?
  • Which systems will carry the workload, and how well do they know each route?

Running both

Some schools offer both, letting students choose at 16. That doubles the planning surface: two sets of subject guides, two assessment calendars and two reporting conventions inside one sixth form. It is workable, and it is the situation where a system that treats the two routes as one generic course becomes a liability.

How to decide

Decide on students, staffing and destinations, in that order, and let the software follow the decision, not lead it. For the Diploma side of the calendar, the DP coordinator's deadline calendar shows what the year looks like.

Common questions

What is the difference between the IB Diploma and Cambridge A Levels?

The Diploma is a broad programme: six subjects across groups plus a core of the extended essay, theory of knowledge and CAS. A Levels are subject qualifications studied in depth, usually three or four subjects. The IB and Cambridge each publish the current specification of their own qualification, which is the authority.

Is the IB Diploma harder than A Levels?

Neither is inherently harder. The Diploma's demand is breadth and the coordination of concurrent internal assessments and core requirements; an A Level's demand is depth in fewer subjects. Which suits a student depends on their strengths and how settled their direction is.

IB DP vs A Levels: which do universities prefer?

Universities accept both, and each sets its own entry requirements by course and country, so there is no single answer. Many publish what grades or points they expect from each route. Check the published requirements for the courses your students are aiming at, and choose the route whose breadth or depth suits the student.

Can a school offer both the IB Diploma and A Levels?

Yes, and some do, letting students choose at 16. It roughly doubles the planning surface, with two sets of subject requirements, assessment calendars and reporting conventions, so the school's systems need to handle each route on its own terms.

Does skodle support A Level schools?

In part. skodle supports Cambridge schools through the school structure, framework-tagged unit planning and the shared assessment, attendance and reporting layers. A Cambridge syllabus is not modelled the way an MYP unit is, and skodle does not manage exam entries with Cambridge.

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