WARNING, EXTREMELY LONG!!
I am having the IDENTICAL problem with my son. He is in the third grade. He was a straight A student in June; middle of Sept. his (new) teacher called me and told me he was at the bottom of his class, a "C" student. This is what we have done so far:
1) Limited his computer, TV, and Nintendo time, and pushed up his bedtime by 30mins. Sleep Deprivation can have almost identical symptoms to ADD, so we thought we would start there. Our daughter has ADD, and our son has shown absolutely NONE of the symptoms. As a matter of fact, HIS behaviour is what led us to realize that hers (as the older sibling) was not "normal".
2) He was in a grade 3/ grade 4 split class. There were 6 grade 3 students, and the teacher is extremely rigid, structured and anal. (My DD had her last year.) The class was structured for the grade 4 students, and we all know that grade 4 is a big transitional year. Three weeks ago I insisted that he be moved to a regular grade 3 class, with a teacher I know well and trust. They didn't want to do it, but the principal agreed because of the drastic change in his grades and abilities. There has been a DRAMATIC change in his behaviour and grades since the switch. In his first week, he turned in a project early, and got an A+ on his first math test. He has since gotten another A and B's on spelling assignments and a project. We are having some issues with bringing home the right homework materials, and the teacher says he is disorganized, and can't find things in his bag or his desk. We are working on that.
3) He is undergoing treatment with his physician, to rule out any physical reason for the change. So far he has had blood and urine tests, got the results yesterday. He has low iron, and his platelets are elevated. We are having a second blood test to address the platelets, and make sure the result was accurate. I have to admit I am very concerned about this, but his doctor doesn't think it is cause for worry yet. The doctor is also, at my insistence, scheduling a C.T scan, because my son had an accident in May ( his sister accidently WHACKED him in the head with a baseball bat.) We had xrays done at the time, but that is the ONLY physical reason I can think of for what's going on.He has been complaining about headaches, but that has been going on before the accident. We had his eyes tested last year, thinking maybe he needed glasses, but that wasn't the case. We have also been refered for the psychological testing to rule out any learning disabilities.
4) His doctor spoke to him in depth yesterday about bullying, nightmares, etc to try to determine if there is some other problem causing changes in his behaviour.
Lets hope we both get this figured out!!