Having recently moved to Spain, I’ve been deep in the process of researching schools for my kids, and it’s been a real headache. The various curriculum systems are particularly dizzying. I’m sure many of you face the same dilemma with [Spanish international schools], so I’ve put together my findings to hopefully help everyone out.
Essentially, international schools in Spain primarily follow three main systems: the IB, the British A-Level, and the American AP. The differences between them are quite significant and directly impact a child’s future university applications and learning experience.

A Brief Analysis of Each Curriculum System
IB
This system is the most well-known, often described as a “holistic education.” It goes beyond just teaching knowledge, focusing on developing students’ comprehensive skills, critical thinking, and global perspective. The curriculum is broad, requiring study in both arts and sciences, and includes three core requirements: Theory of Knowledge (TOK), the Extended Essay (EE), and Creativity, Activity, Service (CAS).
- Pros: It has the highest global recognition and is particularly favored by top universities. It provides a well-rounded education for students, laying a solid foundation for university studies.
- Cons: It’s difficult and high-pressure, demanding excellent academic and time-management skills. If a child has a strong imbalance in their subject abilities, they might find the international school curriculum very challenging.
A-Level
This is the UK’s university entrance curriculum. Students typically choose 3-4 subjects they are best at or most interested in to study in-depth during their final two years. It’s a great fit for students who have a clear idea of their future university major from an early age.
- Pros: It allows students to focus on their strongest subjects, making it easier to achieve high scores. It’s highly advantageous for applying to universities in the UK and Commonwealth countries.
- Cons: The scope of knowledge is relatively narrow. If a student hasn’t decided on a university major, this early specialization might limit their future options. It is less recognized by US universities compared to IB and AP.
AP
AP isn’t a standalone high school curriculum but an add-on to the American high school program. It allows students to take university-level courses during high school. If they pass the exams, they can exchange them for college credits. In simple terms, it lets you earn university credits while still in high school.
- Pros: It’s flexible, allowing students to choose the number of courses based on their ability and interests. It’s a significant advantage when applying to US universities and can save both time and tuition fees in college.
- Cons: The system is less structured, and the teaching quality can vary by school. The difficulty of the courses varies widely, requiring students to have strong self-study skills.
To help you compare them more directly, here’s a simple table:
| Curriculum | Difficulty & Pressure | Best For | Primary Application Route |
| IB | High | Well-rounded students, no strong subject imbalance | Top global universities, especially in Europe and the US |
| A-Level | Medium-High | Students strong in specific subjects with clear goals | UK, Commonwealth countries |
| AP | Flexible | High-achievers aiming for US universities | USA, Canada |
There’s no absolute “best” or “worst,” only what’s most suitable. Before choosing a school, it’s best to visit with your child, check out the [international school’s curriculum], get a feel for the atmosphere, and talk with the teachers to see which learning style your child prefers. For example, my older child is well-balanced in both arts and sciences and is very curious, so we’re leaning towards IB. My younger one, however, is clearly a “math whiz,” so A-Levels might be a better fit for him. I hope this information is helpful, and I welcome anyone with experience to share their thoughts and add to the discussion!