The Four Stokes of Swimming.

This is a diagram of how to  preform these 4 strokes.

In competitive swimming there are four strokes- Backstroke, Breaststroke, Butterfly, and Freestyle. Backstroke, which is basically Freestyle on your back, is preformed where your head is pointed upward, while your hands rotate move from your thighs to your ears. The thumbs are the first to come out and in the 90 degree angle, which changes so that the pinky finger is the first to hit the water. Breaststroke is done by your arms pushing the water down, while your legs kick out sideways. Butterfly is preformed when your hands are entering and exiting the water at the same time, while your legs are kept together and kicking in the motion similar to a dolphin. Freestyle, also known as the "front crawl", is preformed by yours arms pulling the water back, while you kick your legs to propel your forward.