'Multi-Bias Schools' Correspondence between A. Muriel Pierotti (NUWT), Grace I. Cottell (NUWT), the Association of Assistant Mistresses (AAM) in Secondary Schools, regarding proposals for multi-bias or multilateral schools. The correspondence covers: Plans for a conference to discuss the multi-bias school Decision of the AAM not to take part in a discussion on the subject of multi-bias schools proposed by the NUWT Typed extracts from Education Journals discussing the arguments for and against multi-bias or multilateral schools 1936 - 1945