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信息技术环境下的初中数学变式教学,能更好地促进学生数学素养的形成,给学生提供一个求异、思变的宽松的创新氛围和无限的想象空间,让学生从差异中去比较、鉴别。经过实践研究后发现,信息技术环境下实施变式教学可采用动态探究策略。用动画的方法可以帮助学生突破教材的重难点,加深学生对知识的理解。动画的对象可分为两类:一种是把教材的静态图形“动”起来,反映其运动变化规律和空间结构等教学内容;另一种是使抽象的概念变得形象,易理解,使教学内容更为生动有趣:在信息技术环境下,运用课件动态演示可把知识的形成过程直观、生动、便捷地展示在学生面前,帮助学生掌握其内在规律,完成知识构建。如学生难以实现的许多探究活动:函数图像的变化、动点轨迹的探求、涉及复杂计算等问题,在几何画板、Z+Z智能教育平台、Flash和Authorware等软件中都能较方便地进行探究,有利于提高学生的认知技能。
Under the environment of information technology, junior high school mathematics variant teaching can better promote the formation of students’ mathematical literacy, provide students with a relaxed innovation atmosphere and unlimited imagination space that can seek differences and change, enable students to compare from differences, Identification. After a practical study found that the implementation of variant technology under the information technology environment can be used to explore dynamic strategies. Animated methods can help students to break through the textbooks of the difficult and difficult to deepen students’ understanding of knowledge. Animated objects can be divided into two categories: one is to “move” the static graphics of the textbook to reflect the teaching content of the rules of their movement and the spatial structure; the other is to make the abstract concept into an image and easy to understand , Make the teaching content more vivid and interesting: Under the information technology environment, using the dynamic demonstration of courseware can display the process of knowledge intuitively, vividly and conveniently in front of the students, helping students to master their inherent rules and complete the knowledge building. Many inquiry activities such as the change of function images, the search of moving point trajectory, complicated calculation and so on are difficult to be explored in the software such as geometry drawing board, Z + Z intelligent education platform, Flash and Authorware , Help to improve students’ cognitive skills.