In 2002, the passage of the No Child Left Behind Act, with its explicit focus on “closing the achieve-ment gap between high and low performing children, especially minority and non- minority students,”23 testifi ed to the continued centrality and urgency of the issue on a national level.
In today's society, there are K-12 public high school for all students to join. There are also disability center in schools for students with disability to learn, and that definitely shows No child left behind.