Today – the 3rd of March is World Pi Day and all over the world children and adults interested in Mathematics have celebrated this mathematical constant which starts 3.1415…. Ms Rhys-Evans wrote a special song – set to the tune of Joseph’s Coat from the musical – and the whole school sung Pi to 54 decimal places. Some of our older mathematicians had memorised Pi to 28 decimal places and treated us to an example of their skill.