Learning how to accomodate

I am feeling like there is so much for me to learn as a future teacher as it pertains to creating accommodations and a plan for students with special needs.  It seems like so much of what we are doing is guess work.  Many of the learning disabilities are similar and students respond differently to the help that they are given.
When I was a permanent sub for third grade, there were several students I felt needed additional help.  I knew they were falling behind each day, but I didn't know exactly what I could do other than personally trying to tutor them.  They didn't respond to an extent that I felt was acceptable.  I knew I needed to alert others as to their needs. Wen I did alert others of the needs I discovered, they did not feel it was as serious a situation I felt it was.
I feel I still have lots to learn when it comes to accommodating children with social or learning disabilities, but the INCLUDE outline is a huge step in helping me to understand how to begin.  It is a great way to make sure all aspects of a students needs are being taken into consideration when creating the best learning environment possible.