Cooper (The Rag & Bone Man's Story)
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Mr Cooper was Susan Foreman's maths teacher at Coal Hill School in 1963. She said that he would vouch that she was "no slouch at maths". (PROSE: The Rag & Bone Man's Story) Indeed, Susan was top in maths, as well as science, taught by Ian Chesterton. (PROSE: Time and Relative)