good luck! Do you know if it's for a specific position, or a general "to be assigned later" position? When I interviewed candidates for a TA for my class earlier this year, we asked a lot of situational questions, specific to the kids in our preschool classes... we wanted to know
*how they feel about potty training (may not be applicable to your position but very important in preschool sped!!!)...
*how they work with the teachers they're assigned to ...
*what they would do if a parent asks them sepcific questions about their child at drop-off/pick-up, or if you see them around at the grocery store or whatever (we were looking for something along the lines of "you need to ask the teacher about that, I'll let her know you are interested", confidentiality, professionalism, etc)
*How do you handle it when a child indicates that they don't want to do something by throwing the materials on the floor or otherwise indicating they don't want to participate (I was looking for still helping them to participate, etc)
*What would you do if you didn't agree with the methodology, language, etc. that the teacher is using? (We were looking for first talking with the teacher, then if that doesn't resolve it taking it to their supervisor if it's something that could be detrimental to the children)
hope that helps... good luck and keep us posted!