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【数学1】在学习“一一映射”一课时,可提出问题:“劣弧AB上的点和弦AB上的点哪个‘多’?”引出和学生的感觉相矛盾的结论,导入映射等课题。末了再提出问
[Math 1] When learning the “One-To-One Mapping” lesson, you can ask the question, “Which of the ’more’ points on the chord AB on the inferior arc AB?” Leads to the contradiction between the perception of the student and the introduction of the mapping . Finally ask again