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【片断一】直奔主题,初步体会号码中蕴含信息师:(出示图一)这是一对亲兄弟,你能猜出谁是哥哥?谁是弟弟吗?图一(补充显示哥俩儿身份证号码)生:王铭是哥哥,王磊是弟弟。因为王铭的身份证号码显示他的出生日期是2003年1月23日,而王磊的出生日期是2005年10月12日。
【A piece】 straight to the topic, the initial experience number contains information division: (Figure 1) This is a pair of brothers, you can guess who is the brother? Who is the younger brother? Card number) Health: Wang Ming is brother, Wang Lei is his brother. Because Wang Ming’s ID number shows his birth date is January 23, 2003, and Wang Lei’s birth date is October 12, 2005.