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数学教学不能局限于知识的传授和技能的强化,我们要创造条件让学生经历更高要求的锻炼,从而有更多的收获和更深刻的领悟。因此,适度的拓展就成为教学的“必需品”。
Mathematics teaching can not be limited to the imparting of knowledge and strengthening of skills. We should create conditions for students to experience more demanding exercises so as to have more harvests and deeper insights. Therefore, a moderate expansion has become a teaching “necessities.”