In the 3rd grade, an attempt is made for the students to repeat and consolidate knowledge from the 1st and 2nd Grades of Junior High School and to be able to cope with the issues of the 3rd grade with ease so that they can proceed to the 1st Grade of Senior High School without gaps in their knowledge. The recommended subjects for the 3rd graders are:
- Mathematics
- Ancient Greek
- Physics
- Modern Greek Language - Literature
