The engines of academic excellence organized teams of specialists who drive every subject forward with passion, rigour, and innovation.
At Olderkesi Senior School, our academic departments are the backbone of everything we teach. Each department is led by a Head of Department (HOD) and staffed by subject specialists who collaborate on curriculum delivery, student assessment, and co-curricular activities. Together they ensure every learner receives consistent, high-quality instruction across all subjects.
"Unity in purpose, excellence in execution."
HOD: Mr. Mpoke Joel
The Mathematics Department builds logical thinking and problem-solving skills through algebra, geometry, calculus, and statistics. With 3 dedicated teachers and a peer-tutoring program, we maintain an 85% CBC pass rate.
HOD: Mr. Mpoke Joel
Our Science Department explores the natural world through Biology, Chemistry, and Physics. Three modern laboratories support hands-on learning, and the annual Science Innovation Fair showcases student research to KEMRI judges.
HOD: Mrs. Doreen Lanoi
The Languages Department nurtures communication skills in English, Kiswahili, German, French, and Arabic. Through debate clubs, poetry festivals, and exchange programs, students become confident multilingual communicators.
HOD: Mr. Cheruiyot Amos
The Humanities Department connects students to the world through Geography, history, & CRE. Field trips to the Maasai Mara and annual Model UN sessions bring classroom theory to life.
HOD: Mr. Kariankei Wilson
Our Technical Department equips students with hands-on skills in Building, Metalwork, Woodwork, Electricity, Agriculture, Art, and Music. Industrial-grade workshops and a demonstration farm ensure learning by doing.
HOD: Mr. Setek Abraham
The newest department merges technology and creativity. Students learn programming, web design, digital art, and music production.
Beyond the classroom, these units ensure the smooth operation of school life from student wellbeing to administrative excellence.
Led by: Mr. Kariankei Wilson
Provides emotional, academic, and career guidance to all students. The unit runs peer counselling programs, anti-bullying initiatives, and university placement workshops for Form 4 students.
Led by: Mr. Samuel Kiprono
Maintains order, enforces school rules, and fosters a culture of respect and responsibility. The unit coordinates with class teachers to track attendance, uniform compliance, and student conduct.
Led by: Mr. Jacob Ntiyani
Manages dormitory life, meal planning, and student nutrition. The unit ensures all boarding students have safe accommodation, balanced diets, and a structured daily routine that supports academic focus.
Led by: Ms. Jennifer Purrenkei
Manages school finances, oversees budgeting and expenditure, and ensures transparent fee collection. The department supports financial planning, reporting, and compliance with education board requirements.
With six dedicated academic departments and four essential support units, Olderkesi Senior School provides a complete education that nurtures mind, body, and character.