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实验目的探索学生每天一小时体育锻炼(以下简称“一小时”)的必要性和好处。对象、方法和步骤实验对象南京二十三中初一学生,年龄十二、十三周岁,实验班初一(4)、57人(男31、女26),对照班初一(2)57人(男30、女25)。实验方法和步骤对实验班和对照班分别制定课表。实验班每周一、三、五体育课,二、四、六各有一课时(每课时45分钟)的课外活动,每天上午一次广播操,上、下午各有一次眼保健操,共为“一小时”,而对照班则开展每周“两课两活动”(即每周两节
Experimental Objectives To explore the necessity and benefits of a one-hour physical exercise (abbreviated as “one hour”) per day for students. Subjects, Methods and Procedures Subjects: First grade students from Nanjing Twenty-three Middle School, aged 12 and 13 years old, first grade of experimental class (4), 57 males (31 males and 26 females) People (male 30, female 25). Experimental methods and procedures for the experimental classes and control classes were developed curriculum. Experimental classes Each Monday, Wednesday and Friday physical education classes, two, four, six have a class (45 minutes per class) extra-curricular activities, the morning radio every morning, the morning and afternoon each have an eye exercises, a total of “an hour” , While the control class carried out weekly “two classes and two activities” (ie, two sessions per week