Problemløsningens rolle i matematikken
«Mathematics is not about numbers, but about life. It is about the world in which we live. It is about ideas. And far from being dull and sterile, as it so often portrayed, it is full of creativity.» Devlin, K (2000): The math gene: why everyone has it, but most people don`t use it. London: Weidenfield & Nicolson