What did you write on the second grade physical education homework punch card?

Skipping rope, running, cycling, kicking shuttlecock, leapfrog, football, badminton, table tennis.

The purpose and significance of physical exercise for primary school students 1. The influence of physical exercise on bones: bones play the role of supporting the human body, protecting organs, supporting and inciting various movements of the human body. Scientific research has proved that primary school students can strengthen their bones, promote their growth and development, and make their children's height grow rapidly by insisting on going to physical education class and taking an active part in physical exercise. Because in sports, the traction and gravity of muscles on bones not only help to improve the shape and function of bones, but also help to form bones such as spine, chest, pelvis and arch of feet, and improve the mechanical properties of bones. However, unscientific exercise can also bring bad effects to bones. Therefore, physical education teachers must guide students to exercise scientifically.

2. The influence of physical exercise on joints: Through physical education class's study and exercise, the joint capsule, ligaments and tendons can be thickened, the extensibility can be increased, and the muscle strength and elasticity around the joints can be increased. This can expand the range of joint activities, flexible and firm. For example, gymnasts and acrobats are very flexible, which fully shows the amazing role of physical exercise.

3. The influence of physical exercise on muscles: Children's muscles are in the process of development, and the development speed of muscles in different parts of the body is also uneven. Persisting in physical education class's study and exercise can make muscles have obvious adaptive changes in shape, structure, composition and function. Muscles will become strong, strong and powerful. It can strengthen the metabolism of matter and energy in muscles. Can improve the nervous system's ability to control muscles. It can reduce the accumulation of fat in muscles, make children's muscles develop in a balanced way, maintain a good posture and prevent obesity.

Primary school physical education: The purpose of primary school physical education is to carry out physical and psychological physical exercise for primary school students. Use practical means to train primary school students in sports health knowledge! While ensuring the healthy growth of students, we should carry out appropriate scientific exercise. Give priority to games, cultivate interests, and combine teaching methods with students' independent exercise and habit formation! I personally think that primary school students should not do overtraining, especially upper limb training. Therefore, swimming lessons are not suitable for students below the fourth grade of primary school! Give students enough sleep and scientific exercise, and control the time in 20 minutes!

Physical exercise: refers to people's self-choice to develop their bodies, improve their health, strengthen their physique, adjust their spirits, enrich their cultural life and control their leisure time by using various sports means combined with natural forces and health care measures according to their physical needs. Physical exercise is a physical activity process that uses various sports means, combines natural forces (sunshine, air, water) and health care measures to develop the body, improve health, enhance physical fitness and entertain the body and mind. It is the main form of mass sports activities. It plays an important role in promoting human growth and development, cultivating bodybuilding posture, improving physical work ability and even improving the physique of the whole nation. It is characterized by a wide crowd, and people of all ages, sexes, occupations and health conditions can take appropriate exercise according to their personal conditions. Flexible in form and content, you can exercise alone or in groups. The content of sports is extremely rich, which can be divided into five categories: fitness, bodybuilding, entertainment, fighting, medical treatment and correction.

There are many ways to exercise. In addition to the exercises commonly used in teaching and training, people have formed various eclectic fitness methods in long-term exercise practice. The determination of exercise content and methods and the whole exercise process should follow the principle of physical exercise, that is, pertinence. If we can use China's traditional physical exercise methods, such as the combination of form and spirit, static and dynamic, internal and external, we can achieve greater results.