The Theory of Knowledge (TOK) is central to the educational philosophy of the diploma. It is a formally taught course that offers students the opportunity to reflect critically on diverse ways of knowing and to consider the role and nature of knowledge in their own culture, and in the cultures of others. In addition, it prompts students to be aware of themselves as thinkers, encouraging them to become better acquainted with the complexity of knowledge and to recognise the need to act responsibly. The course is assessed by an essay and presentation at the end of the diploma.


| Date | |
| Saturday, June 13 2026 | BS Chadsgrove visit, BL4 and Routh Green, 10.00am-1.00pm |
| Saturday, June 13 2026 | Sixth Form Artists to London Galleries, 7:15am-10.30pm |
| Saturday, June 13 2026 | Sixth Form Musicians to Mozart Marriage of Figaro, Royal Opera House; 7:15am-10:30pm |
| Saturday, June 13 2026 | IV Form Play: Tech rehearsal, Cobham Theatre, 10.00am-5.00pm |
| Sunday, June 14 2026 | Senior School Boarding Event: Football World Cup event tbc |
