Kjartan Poskitt is an author and TV presenter who is best known for writing the fantastic Murderous Maths children's series of books. In addition to his popular science and maths books, which include books on Isaac Newton, puzzles, practical jokes and secret codes, he has written a book of magical tricks.
He came along to school to entertain both the children and staff with his maths wizardry and none of us were disappointed. He got lots of "wows" and "oohs" from his audience as he taught us all amazing facts about numbers, mathematical people in history, and how we can play mathematical tricks on unsuspecting family members. Re-live some of the fun by clicking on the thumbnail photographs and the video player below !
If you fancy visiting the official Murderous Maths website then just click on the link below, or if you would like to read a postcard that Kjartan sent back to Four Oaks then just click on the postcard below !