I've got news for parents - if your kid is falling behind it's your fault, not the school. You are responsible
No, not always. We both worked with my son and got him to finish his homework and learn the lesson the day before so he was prepared for class. We did not know at the time that he had ADD until he reached the 3rd grade and started working with him at home.
With his ADD diagnosis we worked on a 401 plan I think it was called (long time ago) and discussed with the few teachers he had about how to accommodate Joshua's learning problems. He excelled with Home Schooling and we thought he had found out how to manage his issues, but it was a struggle the entire time he was in school. One semester he got F's in all his subjects because he simply neglected to turn in the homework that we had helped him to finish. I wooped his ass, took his toys and threw them in the trash and grounded him till his next report card. His grades came back up and we never had that problem again.