Welcome Savan's Mom!
The only thing I'd add to Grinity's great advice is to consider reading this book:
Late, Lost, and Unprepared: A Parents' Guide to Helping Children with Executive Functioning (Paperback)
by Joyce Cooper-Kahn (Ph.D.) (Author), Laurie Dietzel (Ph.D.) (Author)
http://www.amazon.com/Late-Lost-Unprepared-Executive-Functioning/dp/1890627844

It addresses the fact that many people assume people with strong intelligence naturally have good executive skills but these are only moderately correlated. We know highly gifted students may experience below average impulse control, planning and organizational skills.

The book also discusses assessments and says if you disagree with the evaluation conducted at your child's school, you have the right to request an independent educational evaluation (IEE) or additional testing. More info about IEE's here:
http://www.wrightslaw.com/info/test.iee.steedman.htm