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 :) -- *~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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