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jiahong
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## 体育活动学生参与活动程度分析
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* 队列式活动
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```plantuml
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@startuml
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skinparam componentStyle rectangle
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actor "8" as p1
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actor "7" as p2
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actor "6" as p3
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actor "5" as p4
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actor "4" as p5
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actor "3" as p6
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actor "2" as p7
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actor "1" as p8
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rectangle "体育道具A" as toola
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rectangle "体育道具B" as toolb
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rectangle "体育道具C" as toolc
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actor "8" as p11
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actor "7" as p21
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actor "6" as p31
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actor "5" as p41
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actor "4" as p51
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actor "3" as p61
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actor "2" as p71
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actor "1" as p81
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rectangle "体育道具A" as toola1
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rectangle "体育道具B" as toolb1
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rectangle "体育道具C" as toolc1
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p1 -left- p2
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p2 -left- p3
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p3 -left- p4
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p4 -left- p5
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p5 -left- p6
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p6 -left- p7
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p7 -left- p8
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p8 .left. toola
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toola .left. toolb
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toolb .left. toolc
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p11 -left- p21
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p21 -left- p31
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p31 -left- p41
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p41 -left- p51
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p51 -left- p61
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p61 -left- p71
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p71 -left- p81
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p81 .left. toola1
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toola1 .left. toolb1
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toolb1 .left. toolc1
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toolc .. toolc1#white
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@enduml
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```
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8个学生排队来使用体育道具A、B、C，轮到任何一个学生该学生连续使用体育道具ABC。
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<font color=red>结论：体育课程40分钟，每个学生绝大部分时间(70%)是排队而不是在做体育运动；排队期间学生无聊而相互嘻哈闹着玩，老师还需要去维护秩序。
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</font>
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* 循环式活动
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```plantuml
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@startuml
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skinparam componentStyle rectangle
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actor "1" as p1
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actor "2" as p2
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actor "3" as p3
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actor "4" as p4
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actor "5" as p5
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actor "6" as p6
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actor "7" as p7
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actor "8" as p8
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actor "9" as p9
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rectangle "体育道具" as toola
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rectangle "体育道具" as toolb
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rectangle "体育道具" as toolc
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rectangle "体育道具" as toold
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rectangle "体育道具" as toole
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rectangle "体育道具" as toolf
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rectangle "体育道具" as toolg
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rectangle "体育道具" as toolh
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rectangle "体育道具" as tooli
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p2 -left- toola
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toola -left- p3
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p3 -left- toolb
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toolb -left- p4
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p4 -left- toolc
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toolc -left- p5
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p5 -down- toold
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toold -- p6
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p6 -right- toole
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toole -right- p7
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p7 -right- toolf
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toolf -right- p8
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p8 -right- toolg
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toolg -right- p1
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p1 -right- toolh
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toolh -right- p9
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p9 -up- tooli
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tooli -up- p2
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@enduml
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```
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全部学生一起循环运动，每个学生都在同时运动，40分钟体育课程时间，基本上都是在运动着。
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* 阵列同步活动
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```plantuml
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@startuml
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skinparam componentStyle rectangle
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actor "1" as p1
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actor "2" as p2
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actor "3" as p3
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actor "4" as p4
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actor "5" as p5
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actor "6" as p6
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actor "7" as p7
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actor "8" as p8
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actor "9" as p9
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actor "10" as p10
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actor "11" as p11
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actor "12" as p12
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actor "13" as p13
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actor "14" as p14
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actor "15" as p15
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actor "16" as p16
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actor "17" as p17
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actor "18" as p18
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p1 -right- p2
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p2 -right- p3
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p1 -- p4
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p4 -right- p5
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p5 -right- p6
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p4 -- p7
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p7 -right- p8
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p8 -right- p9
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p2 -- p5
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p5 -- p8
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p3 -- p6
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p6 -- p9
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@enduml
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```
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阵列同步活动，每个学生在体育课期间都是同步做运动，列队：①做操；②跳绳；③俯卧撑.....
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***解决方法***
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<font color=blue>组织学生体育活动的形式需要抓住要领：人每个学生在体育课的时间内70%+的时间在运动中，而不是在等候排队中度过。</font>
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## 学生举手互动行为
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* 举手发言互动的主动性和公平性
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* 老师点名发言的被动性和偏向性
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这两种方式交错使用均可以让学生集中注意力提升关注度。
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***举手人数太多***
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* 45人班级20人举手，时间限制最终仅5人发言
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75%的人举手了但没有发言机会，这五位发言者也是被老师点名的，学生仍然是被动性和老师偏向性。
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问题出在：老师问的问题引导性、思考性不够，就是太简单了，学生抢着举手！让主动性和公平性无法提现。
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***举手人数太少***
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* 45人班级5人断续举手4人发言
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老师问的问题引导性、启发性、思考性较强，学生通过思考后才举手，五人断续举手，按先后顺序发言。
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避免优等生总是抢占举手发言机会，老师引导学生举手表达不知道的问题，<font color = blue>学会提问题</font>本身就是很大的启发性和思考性。
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