Re: [請益] 算式列式問題
※ 引述《emao (奕毛)》之銘言:
: 我都要求學生使用第二種寫法
: 一方面可以強化各個式子相等的印象
: 二方面比較容易觀察過程有無計算錯誤
: 例如:12+6*3=12+18=30 與 12+6*3
: =12+18
: =30
: 暫時不需要整理的部份就對齊著寫 更可以降低錯誤率
常有人會這樣寫
6x(2+1)+12
=6x3
=18+12
=30
也是很無言
偏偏答案是對的,萬一一時不察給他改對,觀念就一直錯下去
--
Even game win even so what
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我也常遇到,學生都說"某某老師都給對,你就不行"
※ 編輯: Jetis 來自: 218.187.131.40 (10/20 02:42)
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