Book Day maths investigation in Year 4

Year 4 looked amazing on World Book Day; we had a range of characters from Harry Potter to the Butterfly Lion by Michael Morpurgo. In Maths, we took part in an investigation helping a school who had lost a golden envelope revealing the winner of a costume competition. The children used their fantastically mathematical skills to unlock codes to reveal clues, with these clues they found who the winner was.