School going age in Ghana is from age 3-21. The educational structure of Ghana comprises:
Pre-School (Ages 3-5)
Basic/Primary School equivalent to Elementary School (Ages 6-11)
Junior High School equivalent to Middile School (Ages 12-14)
Senior High School equivalent to High School (Ages 15-17)
Tertiary Education/Institution equivalent to College/ University (Ages 18-21)
Under the tertiary institutions we have the Polytechnics and the Universities. One has the option after completion of a High School to enter into a Polytechnic or the University.
There are also Vocational and Teacher Training Intitutions in Ghana.