Gifted Issues Discussion homepage Forums Identification, Testing & Assessment Testing for a Learning Disability

For compare/contrast of IEP and 504, a few good online resources:
1) wrightslaw. Here's a link to two of their webpages discussing classroom support via IEP/504.
2) Understood.org is another helpful site for explaining things in layman's terms, including IEP/504.

This is just a bit of info to help you begin your research and prepare for your meeting.