Posted in 【學習】, 【學習】K2

數學 (減數)

星期日,上完跳舞班又未出門在口,我就叫佢做下減數。
佢唔係好明,我認為自己都講得好清楚,但佢好似唔肯去諗咁。有時個樣似唔係諗緊,但原來係諗緊喎!唔通呢個就係佢諗緊野時個樣?(包括行為同表現)

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上圖見到有空白既地方,就係要用減法。
例如中間畫左果幾個圓圈,就係用黎佢解釋 題目有個8,由兩個數字加埋組成既,一個數係3,咁另一個係點計出黎呢?
一開始教佢數手指,8隻手指,唔要3隻,剩幾多?佢識計,但唔明白同條題目俾既數字既關係,唔明點解咁減法。
再用另一種方法:我先畫8個圈,再圈住3個,話佢地係第1組,咁剩返既就係第2組啦!
咁樣畫出黎佢就明,講到答案。
不過由於本來已經打算只做一兩題,所以講到佢好似已經明白之後,就唔駛再做,下次再做睇佢記唔記得先!

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