Maths in movies has often been used creatively as a method by which to engage students in formulas and numerical theory. The 1939 classic The Wizard of Oz features a maze of potential mathematical problems – not least the Scarecrow’s incorrect pronunciation of Pythagoras’ theorem. Presented by The Open University’s David Brannan and Phil Rippon, ‘From Fractions to Formulas’ is a light-hearted parody of the Wizard of Oz (pronounced "Oh-Zed"), in which the traditional characters are replaced by mathematical concepts, including fractions and Pi, that come together in an enactment of the...