His teaching career lasted 30 years .
His teaching career included appointments as the headmaster of Clapham Manor Primary School , Lambeth in the 1980s and Churchill Gardens Primary School , Pimlico in the 1990s .
His teaching career lasted 30 years and included appointments as the headmaster of Clapham Manor Primary School , Lambeth in the 1980s and Churchill Gardens Primary School , Pimlico in the 1990s .