 Now forget maths or science, teenagers in Northern Ireland are strapping on their helmets to try to get an A in skateboarding. It's the first place in the world to offer the sport in the PE curriculum. Alex Ritson has been investigating. It's really easy from my perspective because I'd already been skating, but for someone who hasn't been skating, it might be a little bit harder. You have to do a few tricks and then just knowledge about the sport as well.