IDEA requires schools to provide all students with a free education that is appropriate for the student and provided in the best environment. This might mean you take all general classes but go to a resource room for special help, or it might mean that you receive all instruction in general classrooms. IDEA serves students from ages 3 to 21 and requires transition services. School services under IDEA are something that every student with a disability is entitled to. This means that no matter who you are, what your income or your family’s income is, or what kind of disability you have, the school is required to provide a free, appropriate education. You are only entitled to these services, however, while you are still in school, typically until age 18 to 21.
(IDEA - Public Law 101-476)
Staff of the Family Support Program (including original content as well as curated links to various authors around the web.)