
British Curriculum, Pearson Edexcel or US K-12: choosing the right international pathway
Once a family has decided that an international curriculum is the right direction, the next question is which one. The three options most South African parents will encounter are the International British Curriculum (based on the Cambridge framework), Pearson Edexcel (a sister system also originating in the UK), and US K-12 (the American high school pathway). On paper they look similar. In practice they suit different children, lead to different university destinations and run on different rhythms. This piece walks through each, then puts them side by side, and ends with the scenarios where CAPS or IEB still makes the most sense. How does the International British Curriculum work? The International British Curriculum is the largest international school system in the world. It is structured in four stages from Primary through to A Level, with two major examination points: International GCSE around Year 11 (the equivalent of Grade 10) and A Level around Year 13 (the equivalent of Grade 12). The hallmark of the Cambridge system is breadth followed by depth. Children take eight or nine GCSE subjects across humanities, sciences, mathematics and languages, then specialise into three or four A Level subjects for the final two years. The A Level grades are what universities use for admission worldwide. Assessment is almost entirely external. Examinations are sat in November or June, marked in the UK and reported back. Coursework is minimal in most subjects. This makes the qualification highly portable but places more weight on examination performance. Subject choice at A Level is genuinely deep. A student aiming for engineering can take Mathematics, Further Mathematics, Physics and a fourth subject. A student aiming for law can take English Literature, History, Politics and a Modern Language. The university-ready specialisation begins two years earlier than in the South African system. How does Pearson Edexcel differ? The Pearson Edexcel curriculum follows a similar structure to the Cambridge system, with International GCSEs at Year 11 and A Levels at Year 13. The grades, year structure and university recognition are essentially the same. The differences are subtle. Edexcel runs more frequent examination sessions, which gives a child a second chance more easily if they miss a paper or want to resit. The question style on some Edexcel papers is slightly more application-focused. Subject content overlaps significantly with Cambridge, but in subjects like Mathematics and the Sciences the order of topics differs, and the exam paper structure has its own conventions. Edexcel is owned by Pearson, which also runs major examination boards in the UK. Many South African parents will have encountered Edexcel through Pearson textbooks. The two systems are interchangeable for university admission purposes, but a child should pick one board and stick with it rather than mix subjects across boards. How does US K-12 differ? The US K-12 curriculum follows the American school structure, with twelve grades culminating in a US high school diploma. There is no equivalent of the GCSE or the A Level in the strict sense. Instead, the diploma is awarded on the basis of cumulative grade-point average (GPA) across high school years, with additional standardised tests (SAT and Advanced Placement) sat alongside. The rhythm of a US K-12 year is different. Children take five or six subjects each year, with continuous assessment, regular tests, project work and a final examination. The grade in each subject contributes to the GPA. There is no single high-stakes examination at the end of school. Instead, the entire high school transcript carries weight, supplemented by SAT or AP scores. This structure suits children who perform steadily across the year and find a single year-end examination stressful. It also suits children whose families have a US destination in mind, either through relocation or because they intend to apply to a US university. For South African students considering US K-12, the diploma is recognised by Universities South Africa when paired with the right college admission tests. The pathway is well-established, particularly through Score Academy Online, the sister brand to CambriLearn that runs US K-12 in this region. How do the three compare? Structure. Cambridge and Edexcel run on the British model: GCSE then A Level. US K-12 runs on cumulative grades and a high school diploma. Different rhythms. Assessment. Cambridge and Edexcel weight everything on external examinations. US K-12 weights continuous assessment, coursework and a single set of college admission tests. A child who thrives on examination days suits Cambridge or Edexcel. A child who builds quietly across the year suits US K-12. Subject choice. All three offer wide choice. Cambridge and Edexcel allow deeper specialisation in the final two years. US K-12 keeps a broader subject load throughout. University destination. Cambridge and Edexcel are the most widely recognised, particularly for UK, EU, Commonwealth and South African universities. US K-12 is the strongest fit for US university applications. All three are accepted across the major destinations, with some preference shifts. Cost. Cambridge and Edexcel examination fees are similar, per subject in foreign currency, paid annually for the senior phase. US K-12 has lower examination spend overall, though SAT and AP fees add up. Geographic strength. Cambridge is the strongest brand in Africa, Asia and the Middle East. Edexcel has equivalent recognition with a slightly different international footprint. US K-12 is strongest in the Americas and increasingly in the Gulf states. Which curriculum suits which child? Choose the International British Curriculum (Cambridge) if: your child performs well on year-end examinations, knows roughly what they want to study by the end of Year 11, and may apply to universities in South Africa, the UK, the EU or the Commonwealth. This is the default for most South African parents moving into international curricula. Choose Pearson Edexcel if: your child suits a slightly more application-focused question style, or you want the option of more frequent examination sessions in case of resits or scheduling around sport or travel. The university recognition is equivalent to Cambridge. Choose US K-12 if: you have a US destination in mind, your child prefers continuous assessment



































