American High School System has the following key grades:
- Ninth grade – Freshman
- Tenth Grade – Sophomore
- Eleventh Grade – Junior
- Twelfth Grade – Senior
Retlm Tutors assist students for the following key subjects:
- Science- biology, chemistry and physics.
- Mathematics- statistics, algebra, geometry and calculus.
- English- oral languages, humanities, literature and composition.
- Social Sciences- history, geography and economics.