Thanks for the great idea. I teach at an all boys technical high school, and they loved this lesson! I tweaked it a bit to adjust it to the needs of my students... The slide that says "What do I do for fun? I snowboard!" those pictures are of me, so you can obviously change that slide. I just went through the different extreme sports with them, letting them guess the name of the sport based off the picture before I told them the name. I also let them guess what equipment was needed before I showed them. This allowed them to be creative... I got some funny responses, like one kid would say for every sport that you need a "body." lol
The activity is pretty sraight forward, as I have an example of what they are to do in the slideshow. Of course, have a few kids present when they are done with the activity. The game at the end worked pretty straight forward. I split the class into 4 teams and showed a picture of a piece of equipment. If the team got the sport right on the first guess they would get 3 points, if they got it right on their second guess they would only get 1 point. I stayed strict with those rules (which I don't always do for games) but it worked well as they realised that if they wanted 3 points they could just shout out any sport.
There is also a snowboarding movie and a parkour movie embedded in the slideshow, which the students really enjoyed!