推 Sijan:老實說你降子敎我也是不太懂 59.104.71.159 09/04
現在在教國小五年級的四則運算
碰到一點問題想請教一下大家
就是 例如 72÷8÷9=72÷(8×9)
在做基本運算的時候都知道括弧拿到要將÷變號成為×
但是要如果解釋給學生聽呢？
我的想法是告訴他們
因為72要÷8也要÷9
所以可以先將8和9相乘，再去÷72
又怕他們聽不懂
所以想問問大家是如何解釋的
謝謝囉 :)
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*~Most of time you have Viggo, something amazing is not too far behind.
He's like an old-fashioned movie star in my eyes, very gentleman,
and very polite, you know, *very* concerntrated in his own.
In a word, I would say, I would describe Viggo as being very inspiring.~*
--Dom
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