The number of participants in each group should be at least 16 -18 people.
For students under the age of 18, each group should have at least 2 attendants. (1 attendant for every 7 – 8 students.)
Attendants are not required for students over the age of 18.
"The private school “Panagia Prousiotissa” (www.ppschool.gr), has its seat in Agrinio, Western Greece, since 1957. It is among the oldest and more well-known private educational institutes in Greece with a 63-year constant and successful service. Students from 2 to 18 years old are studying at our school."