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近年来,有关“位置的确定”的题目越来越注重对同学们能力的考查,涌现出许多新颖的题目.同学们要在掌握好课本知识的基础上,注重这些知识在新情境中的创新应用.下面撷取几例,供同学们学习时参考.一、开放探究型例1分别写出5个满足下列条件的点,并在平面直角坐标系中描出它们.(1)横坐标与纵坐标相等.(2)横坐标与纵坐标互为相反数.仔细观察你所描出的点,你发现了什么规律?解析8分别列出横坐标与纵坐标相等的5个点,以及横坐标与纵坐标互为相反数的5
In recent years, the topic of “Determination of ” has paid more and more attention to the examination of students ’abilities and many new topics have emerged.Students should pay attention to these knowledge in the new situation based on the knowledge of textbooks The following retrieves a few examples, for students to learn reference.An open exploration example 1, respectively, to write five points meet the following conditions, and Cartesian coordinate system in the plane drawn them. (1) abscissa And the ordinate is equal. (2) The abscissa and ordinate each other the opposite .Consider the point you have observed, you found the law? Analyze 8 respectively, the abscissa and ordinate are the same as the 5 points, and horizontal Coordinate and ordinate each other the opposite number of 5