Student's free and appropriate public education was sufficient, since the student made reasonable progress, and there is no requirement that educational goals for disabled students ensure that they advance normally with their age cohort.
http://www2.ca3.uscourts.gov/opinarch/173065p.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.