16. BACKSIDE 360° SLIDE
Start with the side you are more comfortable with and have a bit of speed and then start to make a 180 and then another 180 round in the same direction. This might be a bit clunky to begin with but keep practicing and putting more weight on the center wheels and will help the 360 become more fluid.
17. FRONTSIDE 360° SLIDE
Practice both sides round when you get comfortable and try the other way round getting onto the center wheels and using your shoulder and then you can combine everything and create your own style.