I’ve recently seen many people on forums discussing schooling options for their children. It can be quite overwhelming, especially for families who have just moved to Spain or are planning an international education for their kids, given the wide variety of international schools available. Today, I’d like to share some of my own research and insights to help you get a clearer picture, focusing on the most common educational systems found in Spanish international schools.
Overview of Main International Education Systems
In Spain, the term ‘international school’ isn’t a one-size-fits-all concept. These schools follow different educational systems, with the three most common being the IB, A-Level, and AP. Each system has its own unique strengths and is suited to different types of students. The choice of system directly impacts a child’s future university applications and learning experience. Understanding their differences is the first step in choosing the right school.
The IB System
The IB system can be described as an ‘all-rounder.’ It is not tied to any single country’s national curriculum, making it a truly global program. The IB places special emphasis on students’ holistic development and inquiry skills. The curriculum is divided into six subject groups, requiring students to study both arts and sciences, and they must also complete three core components: the Theory of Knowledge (TOK) , the Extended Essay (EE) , and Creativity, Activity, Service (CAS) .
Pros: It is highly recognized by universities worldwide, especially favored by top-tier institutions. It cultivates a balanced knowledge base, critical thinking skills, and significantly enhances a student’s overall abilities.
Cons: The curriculum is demanding and academically rigorous, requiring a high degree of self-motivation and time management skills from students. If a child has a strong preference for certain subjects over others, they might find it challenging.

The A-Level System
A-Level is the national curriculum of the United Kingdom and is the choice for many British-system international schools. Its key feature is its ‘specialized’ approach. Students typically choose only 3-4 subjects they are best at or most interested in to study in depth over two years. This model allows students to play to their strengths and delve deeply into specific fields, a path with costs detailed in our guide on Spanish international school fees.
Pros: Students can focus on their strongest subjects, making it easier to achieve high grades. For students at Spanish international schools who already have a clear career path in mind, it lays a solid foundation for university studies. It provides a significant advantage when applying to universities in the UK, Hong Kong, Australia, and other Commonwealth countries.
Cons: The breadth of knowledge is narrower compared to the IB, with less emphasis on developing a student’s all-round abilities. If a child hasn’t decided on a future field of study, this early specialization might limit their options later on.
The AP System
The AP (Advanced Placement) isn’t a full high school curriculum but rather a program of university-level courses offered in high school, originating from the United States. Students take AP courses alongside their regular high school subjects. In Spain, AP courses are typically offered by American-style schools. Taking AP courses and earning good scores can boost a student’s application to US universities and may even earn them college credit after enrollment.
| Curriculum | Focus | Course Selection | Difficulty & Pressure |
| IB | Holistic development, both arts & sciences | 6 subject groups + 3 core components | High overall difficulty and academic pressure |
| A-Level | In-depth specialization, plays to strengths | Freely choose 3-4 subjects | Focus on fewer subjects, relatively flexible |
| AP | Advanced academic level, university bridge | Electives on top of regular curriculum | High difficulty per course, but selection is flexible |
None of these three systems is definitively ‘better’ than the others. If your child is a strong all-rounder with no significant academic imbalances and aims for top global universities, the IB is an excellent choice. If your child in a Spanish international school has clear talents and a specific future direction, especially if they plan to attend university in a Commonwealth country, A-Level would be more suitable. If the goal is to study in the US, then an American school offering AP courses should be a primary consideration. I hope this information provides a helpful starting point, and I welcome experienced parents to share their insights and join the discussion!