First, explain the three main types of serves: underhand, overhand, and jump serve. Show the students how to perform each one, emphasizing the correct technique. Demonstrate how to hold the ball, the angle of the arm, and the follow through for each serve. Next, explain the rules of the serve. Show the students where the ball must go, how it must travel over the net, and the correct height and speed of the serve. Then, have the students practice each serve. Encourage them to focus on the correct technique and to correct any errors. Emphasize the importance of practice and repetition. Lastly, have the students practice the serves in a game simulation. Have each student serve in turn and explain the consequences of any incorrect serves. Encourage them to focus on the correct technique and rules.