The institution is comprehensive in nature; it therefore caters for a variety of courses made up of a wide range of subjects to suit the aspirations of our students and the needs of the nation.
1. The institution runs a course of full secondary education, that is Basic Secondary School(JSS) the Senior Secondary School (SSS) programme of the UBE/9-3-4 educational system and Adult Education Programme.
2. Onoriede International School is recognized for both following examination by their respective examination councils and boards.
a. Basic Education Certificate Examination (BECE) conducted by the Delta State Ministry of Primary and Basic Education.
b. West Africa Senior School Certificate Examination (WASSCE) conducted by the West Africa Examination Council.
c. National Examination Council Senior School Certificate Examination (NECO).
3. NABTED Examination conducted by the National Business and Technical Examinations of Secondary School and Pre-Degree standard, the students of this institution may be allowed to sit for JAMB examination at the appropriate period and time.
4. The institution also provides after school coaching classes for her students and some others from other colleges in all Arts and Science Subjects including practical classes with emphasis on English Language, Mathematics and Computer Studies.
Students are entertained by arranging Cultural Day Celebration Open Day Graduation / Prize Giving Ceremony and End of Year Party. They also part in public lectures, seminars, music, drama and debates which are educative excursions at moderate charges.
It is the tradition in Onoriede International Schools to encourage healthy competition and hard work among the students in all classes. Thus the Col, O. ONORIEDE FOUNDATION awards scholarship to any student who excels in his/her class at the end of all termly examination. Prizes are also given to overall best students in the various subjects at the end of every session to promote hard work and excellence.