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在2013年全区小学数学教师教学水平测试活动复试说课比赛中,来自桂林市叠彩区桂岭小学(以下简称桂岭小学)的数学教师蒋俊兰上了一节《合理安排时间》。蒋俊兰借几个问题引入教学:“星期天早上,李阿姨到小明家做客,小明要为李阿姨沏茶,他需要做哪些事?分别需要多长时间?……小明需要做这么多事,请你帮小明想一想,他应该先做什么,再做什么?怎样才能让客人尽快喝上茶?”这
In 2013, the primary school mathematics teacher teaching level test activities re-test that class competition, from Guilin Diecai District Guilin Primary School (hereinafter referred to Gui Ling Primary School) mathematics teacher Jiang Junlan on a “reasonable arrangements for time.” Jiang Junlan introduced the teaching by several questions: "Sunday morning, Aunt Lee went to the Ming dynasty guest house, Xiaoming wants to make tea for Aunt Li, what he needs to do? How long do they take? ... Xiao Ming needs to do so many things, please You help Xiao-ming to think about what he should do first, what to do? How to make guests drink tea as soon as possible?