In my school, there is no co-teaching for teachers that have SPED kids in their gen ed classes. In fact, I have only seen this happen at the ELEM level in my district; I have not seen any co-teaching at the MS or HS level. Instead, SPED kids get their pull outs when they would of had Math or Language Arts class. Last year, I had a 6th grade class with 8 IEP students out of 10 kids. This class was kept much smaller than the other 6th grade classes to make it easier for the gen ed teachers to deal with all the IEPs. These were the kids with the more "severe issues" IEPs and if I had even suggested having a co-teacher, I would have been laughed out of Admin's office.