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1、ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meeting of the party secretary every fortnightly, arrange the work of the regiment, feedback the student information. Focus
2、 on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.长度和时间的测量一、对实验数据的处理、分析做物理实验时，除了观察与实验操作，还要对所得的数据进行处理、分析，我们可用传统的方式来处理，还可借助计算机软件来处理。学生数0
3、12345678910低于150153155159161165167171173177179学生数活动3：认识直方图指导学生先观察传统的表格形式，然后观察利用数据处理软件依据表格数据绘制的直方图。（上图是利用Excel绘制的）。请同学们仔细观察，回答下列问题：1）这个班的学生身高较多集中在 cm至 cm范围内。2）身高在159170cm之间的学生数占学生总数的百分率为 。学生讨论、交流，得出正确的答案二、测量时间测量与测量长度一样，先要规定时间的单位，再选择测量时间的工具1、时间的单位教师指导学生自学课文，认识时间的单位及单位间的换算关系。0.1h= min 72min= h1800s= h
4、0.75h= min360s= h 720s= min2、常见的测量时间的工具教师指导学生自学课文，了解常见的测量时间的工具3、正确使用秒表测时间利用多媒体课件展示机械秒表，然后提问：有那位同学知道秒表的使用方法及如何读数利用多媒体课件讲解秒表的使用方法及如何读数.读数练习三、你身上的“尺”和“表”活动3：知道自己身上的“尺”教师：现在请跟同学合作，测出你的身高是多少？手臂长是多少？手一拃是多长？走一步路的距离是多少？大拇指指甲宽是多少？学生分组活动，并进行交流。教师：请先用眼睛估测课桌的长度，再用你身上的“尺”粗测，最后用刻度尺测定，看看这三个结果之间相差多少？活动4：知道自己身上的“尺”教
5、师：现在请跟同学合作，测出你的身高是多少？手臂长是多少？手一拃是多长？走一步路的距离是多少？大拇指指甲宽是多少？学生分组活动，并进行交流。教师：请先用眼睛估测课桌的长度，再用你身上的“尺”粗测，最后用刻度尺测定，看看这三个结果之间相差多少？ 活动5：用停表，测量你脉搏跳动10次、80次所用的时间，以及1分钟你心脏跳动的次数。能否用它作为表来估测时间？三、归纳小结通过本节课的学习，你有什么收获？让学生进行自我归纳。四、巩固练习：课本自我评价与作业4、5、6五、反思在本堂教学中，学生的学习气氛活跃，热情很高，但在具体应用知识解决实际问题的时候，我看效果不是很理想，这恐怕是由于本节所学的刻度尺的使用
6、，是同学们日常所用，司空见惯的，有些粗心大意，在具体细节上认识不够所致。在直方图的学习上，发现一小部分同学的识图能力、模仿能力较弱，在作作业时，应予以强调，进一步加强认识，要学会画、识别直方图。Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spirit with the influence of the leag
7、ue members. All League branches should start with recommending outstanding students as the development objects of the League, take amateur league schools as the basis, conscientiously do a good job in the work of pre-league education, league membership education, League members vanguard exemplary co
8、nsciousness education, excellent league members education, etc. Under the premise of ensuring the quality, the development quantity of league members will increase steadily, and the ranks of league members in middle schools will be strengthened constantly. It is planned to develop a group of new lea
9、gue members in April and mid-October.2. Carry out the regular meeting system of the League branch, and strengthen the ideological accomplishment and the training work in the field of business. League cadres are the backbone of the work of the League, and their quality directly affects the quality of the work. Therefore, they plan to use their extracurricular activities on Wednesday to open special training and other forms of study activities. To help the regiment cadres improve their ideological quality and professional skills, improve their2