（本刊讯）北京市教委和北京市体委在落实中小学生每天一小时体育活动中，狠抓了课间操的管理。为了全面提高课间操的质量，近十年来，北京市先后三次召开中小学课间操现场会。北京币中小学的课间操大多为20－30分钟，做2－3套操。一套是广播体操，一套是素质操，还有一套是各? (Newsletter) The Beijing Municipal Education Commission and the Beijing Municipal Sports Commission have paid close attention to the management of inter-classroom exercises in the implementation of one-hour physical activity for primary and middle school students. In order to fully improve the quality of classroom exercises, in the past 10 years, Beijing has held three sessions of primary and middle school class meetings. Most of the Beijing-Korean elementary and middle school classes spend 20-30 minutes and do 2-3 exercises. One set is broadcast gymnastics, one is quality exercise, and one set is all?