LRS, does your ds have an IEP already? If he does, I'd try to work through the school first, especially if they've been responsive and helpful in the past for other issues.

When you mentioned you'd contacted the special ed coordinator, was it just an informal call/email? If so, I'd recommend as your next step, gather the info we've suggested here, write up the list of your concerns and the testing you'd like to request and then put that in a formal letter requesting an IEP update.

polar