The 6th grade Math students used the Geometer's Sketchpad software to construct the four quadrants of the coordinate plane, in which they plotted several points. In a second document, the students plotted two linear functions, and then placed points on those functions. Next, the students moved the points up and down the lines and checked to see how the X and the Y coordinates of the points changed in relation to each other. From these observations, the students drew conclusions about the functions.
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