This is a great activity for last week of term Christmas . I've shamelessly altered the original but don't know who the original author was so i take no credit for the basis of this. I've removed the "killing" and "bombing" of the original with more suitable christmassy things - like the Grinch and Scrooge... Pupils fill a grid with money and icons and the teacher then proceeds to randomly call out coordinates. Students have to keep a running total of their "bank" and there's lot of interactivity. Great for basic numeracy, coordinates and laughs!