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数学源于生活,寓于生活,用于生活。新课标十分强调数学与生活的联系,明确指出:“数学教学要紧密联系学生的生活情境,从学生的生活经验与已有知识出发,使学生初步感受数学与生活的密切联系。”数学教学只有紧密联系生活实际,才能培养学生对数学的应用意识,使学生在知识学习与应用的过程中对所学知识形成深刻的理解,学生才能在学习中建构可以应用的灵活知识,还能自觉主动地从数学的角度探索这一知识在实际中的应用价值。因此,在《导数的几何意义》这节课引用现实生活的具体例子来丰富本节课的内容,能大大激发学生学习的兴趣。
Mathematics comes from life, life, and life. The new curriculum standard places great emphasis on the connection between mathematics and life, and clearly points out that: “The mathematics teaching should closely relate to the students’ life situations, starting from the students’ life experience and existing knowledge, so that students can initially feel the close relationship between mathematics and life.” Mathematics teaching can only cultivate the students’ awareness of the application of mathematics, so that students can form a deep understanding of what they have learned in the process of knowledge learning and application. Students can build flexible knowledge that can be applied in learning. Consciously and actively explore the application value of this knowledge in practice from the perspective of mathematics. Therefore, in the “Geometric Meaning of Derivatives” lesson, the specific examples of real life are used to enrich the content of this lesson, which can greatly stimulate students’ interest in learning.