Question

Proszę o popawienie. Chodzi o opis polskiego systemu edukacji.
Podejrzewam, że niewiele jest tu dobrze, więc nie pogardzę nowym opisem.

In the polish system of education children beetwen 2-6 years old start kindergarten. After graduating 6 years old they can however, don't must go to school. From 7 years old it is mandatory. They attend to it for 6 class. Next they go to next three-class school. After graduating go to high school for three years.

Answer 1

In Polish education system children aged 2-6 go to kindergarten. When they're 6, they can start elementary school, although it is not mandatory at this age. However, as soon as they turn 7, they have to go to school. Elementary school is 6 years long. Then, children go to 3-grade middle high school. After graduation they go to, also 3-grade, high school.
(Mam nadzieję, że wybaczysz lekkie przeredagowanie tekstu :))