Hello. First of all, good luck with your interview-you sound very passionate so I hope you get a position there. As for the written task, I have never had to do one in a job interview yet (I work in a residential SLD/PMLD/ASD school) but a friend of mine who worked at a residential special needs college had a written task at her interview where she had to draft a letter of complaint to a local pub landlord who had refused entry to a student based on their learning disabilities. It might be different for you though as obviously she worked with young adults who were over the legal drinking age. This is something we come across a lot in the residential sector-you don't say if your potential workplace is residential or a day school but, at our residential school, I have known a previous manager of mine to have to write a letter of complaint to a local shopkeeper who had thrown one of our students and his carer out of the shop because the student was taking too long to count his money to hand over! As for the "brain freeze", I'm afraid I can't help as I have Aspergers Syndrome and when it comes to my passion (working with people with learning disabilities), I have the opposite problem and can't stop talking! I am sure any good interviewer would know that it's just nerves though, and you will probably find that your interaction with the pupils will count for more as, in my current job, they paid a lot of attention to how I interacted with the students before interview. Good luck and let us know how you get on!