Think You Were Fired Unfairly?

I was a temp on a job assignment for the school system. I usually go from one school to another. I was happy when on Sept. 5 i was assigned to work with a small K class six blocks from my home becauz i take care of my elderly mom and would be close to home. I did everything right, came in on time, went to a meeting on election day when i cudve taken my father to the doctor. I was told if anyone wanted to be considered for permanent work, we'd be advised to come to a meeting on election day. So i went. I was even told by the secretary that i shud put in for permanent as soon as the hiring freeze lifted. The kids loved me, I did my work to the best of my ability, I was nice to the kids when other teachers weren't. So go figure my shock when I was called into the office two days before Thanksgiving and tomorrow would be my last day. It seemed they wanted a hispanic biligual para fora little boy in my class although the other ten kids spoke english. I had been working as a para for three years so was very pissed off to be told my last day would be tomorrow, The principal said "it wasn't my work, it had nothing to do with me, they just needed a spanish para for the kid" but there were other kids in the class that would be getting a para also. See, this is a mixed school and it seems to me the principal wants mixed raced paraprofessionals for the kids, although im black and she's black. It this backward racism?