灵活试商教学反思
下面是小编帮大家整理的灵活试商教学反思,本文共19篇,希望对大家有所帮助。 榆次区潇河湾小学张金环 当除数不接近整十数时,如果用“四舍五入”法把除数看作整十数来试商,往往需要多次调商,这种情况,可以让学生根据具体情况采取不同的方法来灵活试商。 1、可以让学生自己去思考、发现归纳,,教师只要发挥好引导、合作的`作用,就能取得有效的教学效果。 教材呈现了3种试商思路:一是把26看作30 试商,调一次商
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