TreeHouse International School (T.H.I.S.) offers the International Baccalaureate Diploma Programme (IBDP) for grades 11-12. Within our IBDP high school pathway students have the opportunity to take six subjects (Higher or Standard Level) plus the core IBDP components: Theory of Knowledge (TOK), Extended Essay (EE), and Creativity, Activity, Service (CAS).
The International Baccalaureate Organization ® (IB) has accredited TreeHouse International School as an IB World School (IB School code: 063191).
Our school is authorized to implement the IB Diploma Programme for our high school students.
IB Diploma Programme Offerings 2025 – 2026
DP Subject Groups Classes
| Class Level | Class Name |
| SL & HL | Biology |
| SL & HL | Chemistry |
| SL & HL | Design Technology |
| SL & HL | Language A: language and literature |
| SL | Español ab initio |
| SL | Français ab initio |
| SL & HL | Global Politics |
| SL & HL | History |
| SL & HL | Mathematics Applications and interpretation |
DP core
reflect on the nature of knowledge and on how
we know what we claim to know
► The extended essay (EE) – an independent,
self-directed piece of research, culminating
with a 4,000-word paper
► Creativity, activity, service (CAS) – students
undertake and engage in activities related to
each of the three strands
Learn more about the IBDP
For further information about the IB and its programmes, visit the IBO website or speak with your high school counselor / IBDP Programme Coordinator.
IB World Schools share a common philosophy—a commitment to improve the teaching and learning of a diverse and inclusive community of students by delivering challenging, high quality programmes of international education that share a powerful vision.**
**Mission Statement from the IB
The International Baccalaureate aims to develop inquiring, knowledgeable and caring young people who help to create a better and more peaceful world through intercultural understanding and respect. To this end the organization works with schools, governments and international organizations to develop challenging programmes of international education and rigorous assessment. These programmes encourage students across the world to become active, compassionate and lifelong learners who understand that other people, with their differences, can also be right.
