Before GPS (Global Positioning Systems), most people were familiar with maps, since maps helped them to find unknown locations. Today, maps are still used in different areas, such as city planning, to map out communities, buildings, landmarks, and so on. A map is simply a coordinate plane.

The activity Polygons in the Coordinate Plane is a dynamic activity in which students drag points to given locations on a grid. Students plot given coordinates for different points that form a polygon, and must sometimes determine the coordinates of a missing point to complete the polygon.

Who knows…maybe there will be some city planners in the making!

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