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1、“认识钟表”教学片段设计及评析1、认识钟面教师出示钟表。师：小朋友们请看钟面，钟面上有几个数？生1：钟面上有12个数。师：钟面上有几根针？生2：有两根针。师：长的一根针叫分针，跟老师读一遍：分针（学生齐读）。短的一根针叫时针（学生齐读）。2、整点的认识师：下面我们来认识整点钟。教师指着钟面说：整点时分针总是指着12，时针指向几，就是几点。比如说，分针指着12，时针指着3，就是3点。师：现在钟面上分针指着12，时针指向8，小朋友说一说，表示几点呢？生：是8点。3、认识半点师：下面我们来认识半点钟。教师指着钟面说：半点时分针总是指向6，比如说，2点半，就是分针指向6，时针指向2和3中间。师：（指着
2、钟面）钟面上分针指向6，时针指向3和4中间，小朋友说一说，现在是几点钟？生：现在是3点半。点 评：数学教学要从学生已有的生活经验和知识基础出发进行教学。认识钟表应密切联系学生的生活经验组织活动。学生的生活经验是小学数学教学的重要资源。实际 上，小学生在生活实践中对钟表已经有了丰富的经验，这是小学生认识钟表的重要基础。在本案例中，教师把认识钟表、整点和半点作为“全新”的知识进行教学是 值得商榷的。如何充分利用学生原有对钟表的经验，是本节课教学中应该特别引起关注的问题。教师可以充分结合课本中的主题图“小明的一天”，创设情境让学生 进行活动，使学生更好地发挥学习的主动性。C29C91AFE4CED1
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