What is special needs? This is just referring to people who require assistance for disabilities that may be medical, mental, or psychological. In education this is the practice of educating students in a way that provides accommodations that address their individual differences, disabilities, and special needs.
People tend to think that this is a bad thing, but the truth is it can really be an amazing thing. There are a lot of people who can actually function somewhat regularly even with special needs.
Below are some links that will answer any questions about anything that a parent might question if they have any concerns about their child.
The Difference SEN and Disabilities
Questions Often Asked by Parents about Special Educational Services
Evaluating School-Aged Children for Disability
If you don't find what you are looking for in these links please contact me and I will gladly provide more links and research for your questions.