The comprehensive curriculum offered by Trinity International College upgrades you frequently with current course material and pushes you on the appropriate path. Medical, engineering, and management preparation classes lead to the most significant number of placements, combining traditional & modern modes of delivering +2 instruction using internet technology. E-learning is an integral part of Trinity teaching-learning.
The science faculty adopts the best teaching methods to facilitate learning and create a positive atmosphere. Students receive 8 hours of instruction, including systematics lectures, lab work and demonstrations, seminars, interactive classes, field trips, and frequent assignments. Depending on their relevance, students can choose between day or morning shifts.
The course structure of Science in grade 11 and 12 are as follows:
| Grade XI | Grade XII |
| C. Nepali | C. Nepali |
| C. English | C. English |
| C. Mathematics | C. Mathematics |
| Physics | Physics |
| Chemistry | Chemistry |
Biology and Computer Science are optional subjects, students can choose one of them on the basis of their interests and the career they are dreaming about.