2. By playing games such as walking on the balance board, standing on one foot and stopping after turning in circles, the inhibition process of children's cerebral cortex can be strengthened.

3. "Three-bath activity" refers to air bath, sunbathing and water bath.

4. The basic sports of preschool children, such as walking and running, belong to periodic sports.

5. The combination of explanation method with demonstration or action practice is an important feature of preschool children's sports activities.

6. The structure of preschool children's sports games consists of activities, tasks, contents, methods, conditions, plots, rules and results.

7. In order to ensure the balanced development of children's bodies, not only the negative importance and fitness of the body, but also the weight-bearing part of the body must be carried out alternately in practice.

8. Games such as chasing, dodging and avoiding sandbags thrown by others can make children's neural processes more exciting and improve their flexibility.

9. Teachers should first observe the child's breathing condition, and then according to the child's pulse. The activity center rate is preferably above 130 beats/min, and the highest is not more than 180 beats/min, and the heart rate recovery time is within 10 min.