第99章 伴读(2 / 2)
天姥吟传奇
王者近水
0 字
2021-11-01
他俩已多次在屏风后听过课,方家姐妹习以为常,所以,也没特别的紧张,继续做物体沉与浮的演示教学。一个大脸盆,里面装上半盆水,然后,吩咐小朋友们去寻找各种各样的物品,试验为什么有些东西沉在水底,有些却浮在水面。
“为什么石头沉下水?为什么木头浮水面?”看到小朋友把铁片石头鹅毛木头投下后,方雨菊细心地开始提问。
又是种立里首先回答:“因为石头重,木头轻。”
方雨菊提给他一颗小石子,一块大木头问:“这两个那个轻,那个重,那个沉,那个浮?”
种立里抓了抓后脑勺,不知该如何答复。这牵涉到比重的概念,当时的人虽有所感觉,但并没形成系统知识,不要说小孩,大人也没一个能答得上。
“是不是重量与大小的某种比较呢?”太子出神地想着。
真的是个天才。乐正云秀刚好进来看一看大家的学习情况走了进来,听到太子的话,心中一惊,如在现代,绝对会是个科学家。
“乐正老师,好久没给我们讲故事了,今天给我们讲一个吧。”小宫女杭雨筝就是粘人,缠着乐正云秀的手不放。
“好,老师给你们来一段曹冲称象的儿歌。”乐正云秀摸了摸她的小脸蛋,唱了起来。
《曹冲称象》
番邦送来一头象,
文武百官站两旁,
曹操指着大象问:
谁能说出它的重量?
文官说:砍个大树做把称
再把大象往上挂
武官说:切成块来称一称,
称好重量再相加
唱了一半,乐正云秀停下来问大家说:“小朋友们,你们谁有办法把大象称出来?”
停了一会,没人回答。
乐正云秀看了看太子,太子满脸的兴奋说:“似乎可以用刚才的道理来称象,让我想一想。”过了一会儿,满脸的奥恼说:“还是想不出,老师,你说怎么称?”
乐正云秀继续唱道:
曹冲听了直摇头
这样大象不死了
先把大象赶上船
刚唱到船字,只听得太子跳了起来喊道:“我知道怎么称了,划下大象的吃水线,再把大象赶上岸,往船里装东西装到线上。”
乐正云秀停了停,继续往下唱道:水的波浪印船帮
再把大象赶上船
放上石头到船上
曹操听了哈哈笑
我的冲儿最聪明
满朝文武赶不上
皇帝听了,微微一笑,对德妃刘娥说道:“吾儿心智已开,聪明过人,异日必为明君。”
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