One of my closest friends has been a remedial teacher for about 15 years now. She helps kids improve their basic skills, or overcome many of the struggles caused by for example dyslexia, mostly in a 1-on-1 setting. Her eternal point is that behavior is the number one issue, and school culture (as in among teachers) really makes a difference to kids' behavior: she sees that in the schools her students come from, and some supply a disproportionately large amount of problems.

Not all schools are equal.