Who were called teachers in ancient Greece? what were their responsibilities?

Who were called teachers in ancient Greece? what were their responsibilities? what and on what did the schoolchildren write? what was taught in the Athenian schools? where were the boys taught gymnastics? where could adult Athenians improve their knowledge and do gymnastics? to whom do the names Miron and Polycletus belong? what are these Greeks famous for?

A slave who took and brought a child from school was called a teacher in Ancient Greece.
It was his responsibility to carry the child’s educational supplies.
The students wrote with a stick on wooden boards covered with wax.
In ancient Greek schools, they studied writing, reading, counting, drawing, swimming.
The boys were trained in gymnastics in the palestra.
Adult Athenians could supplement their knowledge in gymnasiums, of which there were three in the city.
Myron and Polycletus are great masters.
Myron was a sculptor and created a statue of a discus thrower, in which he showed all the changes in human muscles at the moment of movement. The statue of the discus thrower is world famous. Polycletus was also a sculptor and created a statue of a spearman.