The L method of throwing refers to a technique used to teach young kids how to throw a baseball accurately. The concept involves forming the shape of an "L" with the throwing arm to emphasize proper arm positioning. Starting with the arm extended straight back, players then bend their elbow at a 90-degree angle, forming the bottom part of the "L." This method helps young players understand the importance of keeping their elbows elevated and in line with the target, promoting accuracy and control.