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建模点1:位置确定模型教学内容:第一单元:位置教材分析:“位置”的教学内容是第一学段相应教学内容的扩展和提高。学生在低年级学习了如何根据行或列确定物体的位置,中年级“位置与方向”的学习,知道了在平面内可以根据两个条件(角度和距离)确定物体的位置。本册教材在上述学习的基础上,教学如何用数对表示物体的位置,为初中学习“图形与坐标”打好基础。确定位置有一维、二维、三维、四
Modeling point 1: Position determination model Teaching content: The first unit: Location Teaching material analysis: “Position ” teaching content is the first section of the corresponding teaching content expansion and improvement. Students learn in lower grades how to determine the position, middle-grade “position and direction ” of learning by row or column, knowing that the position of an object can be determined from two conditions (angle and distance) in the plane. This book teaching materials on the basis of the above learning, teaching how to use the number of pairs of objects that position for junior high school learning “graphics and coordinates ” and lay a solid foundation. Determine the location of a one-dimensional, two-dimensional, three-dimensional, four