Get an A For Theory of Knowledge (ToK)

Alex is a second-year Economics student at University College London on track for First-Class Honours, after having graduated from Vienna International School with the IB Diploma, scoring 44/45 points.

Alex is natively fluent in Spanish, German, and English and proficient and Russian and French, allowing him to accommodate students to their preferred language. This is reflective of his teaching style: Alex places a large importance on adaptability and catering to students' particular needs, which often is the lacking factor in the classroom. Having been in the IB system his entire life, Alex is comfortable working with a diverse range of students and appreciates their individual requirements.

Since attending University, Alex has received multiple offers for internships within finance & investment banking with an acceptance rate of <1%, and hence is also keen to discuss career plans and post-IB development with his students.

Alex's full IB Diploma breakdown is as follows:
HL Mathematics - 7
HL Economics - 7
HL Psychology - 7
SL Biology - 7
SL French B - 7
SL English A: Lang/Lit - 6
ToK - A
EE - B

Anant is a tutor currently studying Computer Science and Artificial Intelligence at the Hong Kong University of Science and Technology (HKUST). As an IB alumni, he took on an ambitious 4 Higher Level subjects and graduated with an outstanding 42/45 points. Beyond academics, he actively builds machine learning models and engages with top-tier quantitative finance firms like Citadel. Specializing in IB Math and Computer Science, he uses patient, real-world analogies to break down complex technical jargon. Anant ensures his students feel completely supported, helping them move beyond rote memorization to build true confidence and maximize their exam scores.

Asher completed the IB Diploma Program in November 2022, graduating from Kristin School in New Zealand. He was a student who maintained consistent focus on his academics during high school, achieving a 45 with an A in Theory of Knowledge and the Extended Essay. During his diploma years, Asher participated in a range of physics competitions, competing at a national level, as well as spending time maintaining other interests such as piano performance and leadership within his school. Asher aims to grow a close connection with those he tutors so that each session can be productive, effective and fun.

Carl Plummer, a published author, has an Upper Second Honours Degree in Literature and Modern History. He has taught IB DP for over 13 years (English Lang B, English Lang A Lang/Lit, English Language A Literature - all at HL and SL, while supervising many EEs, and was head of TOK for many years) and has completed numerous workshops to keep up-to-date with teaching skills and IB policy. Carl does plenty of preparation for classes, always has extra materials available for students (often involving history for context), and is firm with homework and homework marking.

Diego Aguirre holds a teaching degree (Licenciatura) in Philosophy and Letters, with an emphasis in Spanish Language, from Santo Tomás University in Bogotá, Colombia. With more than 15 years of teaching experience across the IB Diploma Programme, the MYP, and the national curriculum, he has spent over a decade teaching Theory of Knowledge in both Spanish and English.
Diego brings valuable leadership experience to his work: he has served as Diploma Programme Coordinator and Extended Essay Coordinator, and has trained teaching staff for the implementation of the IB programme in schools across Colombia. This gives him a complete understanding of how the IB works — from the daily classroom to its assessment criteria and its highest expectations. He has been trained directly by the IBO and holds a B2 English certification (Academic IELTS).
He also tutors students in Spanish A: Language and Literature and supports learners in English B, always guiding them through the core components with clarity and confidence. Diego's students consistently achieve strong results in their final assessments, a reflection of his reflective, structured, and rigorous approach. He leads them along a genuine path of critical thinking, helping them not only meet the assessment criteria but understand how knowledge itself is built, so that every student develops real intellectual confidence and learns to enjoy the journey of thinking deeply.

I am Hans Koster and a native from Rotterdam, The Netherlands. I have been teaching IB/DP , IGCSE and 'O' and 'A' levels for the last 20 years on a variety of internationals schools, both in Europe and the U.S. I carry degrees from Leiden Uni. in Leiden, The Netherlands, and completed my doctors course work at Carnegie-Mellon Uni. in Pittsburgh, PA, USA. I have played First Division Amateur soccer in Holland and have coached for the last 20 years as well. Besides being a soccer fanatic, I am also a wolf conservationist supporter being associated with Wild Spirit Wolf Sanctuary in Ramah, NM. I read quite a lot as well and try and link my readings to what I teach in IB History and ToK. Finally, and not necessarily on an academic note, I am a Monty Python fan, so you know(LoL). Cheers, Hans.