Activity Description Plot ordered pairs on the graph, and they will be connected in the order that they are input. This enables you to decide how the pairs should be connected, rather than having the computer connect them from left to right.

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Ordered Simple Plot

Place in mathematics curriculum:

• illustrate the Cartesian coordinate system
• practice students' pattern recognitions skills
• practice students' graph reading skills

This applet allows the user to input a series of (x,y) ordered pairs and plot them either in the order they were entered or as unconnected data points. Parameters such as minimum and maximum x value, minimum and maximum y value, and x- and y-scale can be set by the user or determined by the applet. This activity would work well in groups of two to four for about thirty minutes if you use the exploration questions, depending on how many shapes you graph.

Preparations for this activity:

• Explain what the Cartesian coordinate system is
• Demonstrate how to plot points on a graph