Study / Are English only speaking students accepted into public Wroclaw school? Spanish ones too? [12]

My family will be relocating to Wroclaw in mid March of the upcoming year. We do not speak any polish. We are from Massachusetts, USA. Here if a child comes from another country they are given extra help until they learn the language for free in public school . When we go to Wroclaw will they offer the same service. It was suggested that putting them in Private school would not enable them the opportunity to meet and play with local Polish children. Putting them right into the public school would be the way to go. Can any one offer an opinion and the facts about what programs if any the public school could help us with learning the language so that my children do not fall behind in their studies. I have a 6 year old in kindergarten, twin 9 in 4th grade and a 12 year in 7th grade. Thank you for any help :)