Matching Graphs with their Inverse Graphs

Create a series of graphs large enough for the class to see.  These can be created by hand drawing, utilizing a graphing software package, or using TI-Connect and the graphing calculator (adjust the size to be 300% to create a large graph).

Place magnets on the backs of the graphs.  Also, laminating the graphs will help to protect them for future use.

Put a series of the graphs on the board for the class to see.  Hold in your hand a matching number of graphs that will be the inverse graphs of the ones on the board.  Ask for volunteers (or choose students) to take a graph from you and put it with its inverse on the board.  If you want a more challenging activity, place graphs in the pile that do not have their inverses on the board (you might want to warn the class of this possibility so as not to be "too" mean!!!).

On the board (there are only a few shown here):

In your hand (not in the proper matching order):

Prepare several of the graphs "close" in style so that there is some challenge
in finding the proper match. 

 

	Roberts