Body side to the net, legs naturally open, left foot in front, left hand holding the ball in front of the body. The left hand throws the ball vertically in front of the body smoothly and accurately, and the throwing height is about 20 ~ 30 cm. While throwing the ball, the right arm should be pulled back sharply and the upper body should lean forward slightly. Hold your fingers tightly and keep your eyes on the sphere. Push the right foot to the ground and move the center of gravity forward, quickly driving the arm to twist and tuck in. Swing your arms in a straight line, above your chest, with the hard part of your fist at the back and bottom of the ball. Be quick, and don't throw the ball too high, too front, too queen.

1 service posture

Hold the ball in your left hand, stand sideways facing the net, slightly bend your body, with your left foot in front and your right foot behind.

2 Throw the ball

Keep your arms straight or slightly bent. Hold the ball smoothly with your left hand. When pitching, keep your arms straight, raise your big arms and hold them in your palms. It is required to throw the ball straight up and down.

3 pull the arm

When pitching, relax your forearm, lift your arm close to your ear and pull it away. The elbow joint is flat with the ear, and the arm is pulled greatly. The body leans back slightly, and the center of gravity leans back. The backward range of the body should not be too large, resulting in movement deformation.

Swing your arm.

When throwing the ball, lean forward and drive the whole arm to play volleyball hard.

5 key points and difficulties. Volleyball service techniques are divided into: preparation posture: facing the service direction, standing back and forth with both feet. Hit point and location. Body arm: the left hand throws the ball up in front of the right shoulder, the right arm swings straight from back to front, and the whole palm, palm root or fist hits the ball in the back middle. After hitting the ball, the center of gravity moves forward.

According to the technical characteristics of volleyball forehand service and the actual situation of students, the key points of this lesson can be determined as follows: (1) swinging the palm root in front of the abdomen to hit the lower part; The difficulty is: swing the hitting time with the shoulder as the axis.