No child left behind has been an epic fail. We home school our children now as a direct result of this act. One of our children has ADHD, and has trouble retaining information. Spelling words were hard for him. So while the rest of his 3rd grade class had 20 words per week, he only had to do 10. This way he would pass and not be left behind. Did he learn what he should, no. Same thing in math. We now have had to go back to first and second grade teaching for him, because 4th grade is over his head. He doesn't know the basics and most of this is because of " no child left behind."