“26. The question that the local education authority has to address is, therefore, is it satisfied that it would be “inappropriate” for the special educational provisions of the particular child to be made in a school or not? In answering that question it seems to me that it is not enough for the local education authority to ask simply “can” the school meet the statement of needs set out in part 3 of the section 324 … To confine the question thus does not, in my view, give proper scope to the words in section 319(1) … in conducting that exercise, or answering that question, if a local education authority is to give full effect to the word “inappropriate”, it has to see if a school would “not be suitable” or “would not be proper”