体育课的练习密度是衡量一节体育课质量的重要指标。合理的练习密度可以使学生得到科学的锻炼。练习密度是指学生参与各项练习时间和课堂总时间百分比,一节课的好坏,是不是真正使得学生得到锻炼和掌握运动技能,主要是由运动密度来监测。一节体育课的练习密度过小,究其原因,一是分组过少,学生轮流练习时,等候时间过长;二是课前准备不充分,场地器材少,设置不合理;三是集中讲解时间过多,学生观察时间过多,影响到学生练习时间过少。体育 Physical education practice density is a measure of an important indicator of physical education quality. Reasonable practice density can make students get a scientific exercise. Practicing density refers to the percentage of students participating in the various exercises and the total time in the class. Whether a class is good or not actually leads students to exercise and motor skills, which are mainly monitored by the density of exercise. A section of physical education practice density is too small, the reason, one grouping is too small, students take turns practice, the waiting time is too long; Second, insufficient preparation before class, venue equipment, set unreasonable; Third, focus on Too much time, students observe too much time, affecting students to practice time is too small. physical education