I am female, aged 54 and capable of looking stern although I am a complete softy really. After 17 teaching in the same middle class junior school in the south east, I have moved house to a wonderful but far less wealthy area of the country. About to begin supply two days a week I have been warned by one supply agency that the children are very challenging. Would it be a good idea to wear pretty formal clothes (I have never worn a suit before!), bearing in mind the TES behaviour advice?