Return to Mathematics IndexGraphing Game

Lalagos, Thomas Hyde Park Career Academy

947-7180

Objective:To introduce the graphing of ordered pairs on the cartesian plane.Materials:A cartesian graph that goes from -4 to 4 on both axes. The axes should bethicklines with arrows facing in the positive direction. The

other lines on the graph should be lighter than the axes. Horizontal

lines should be a different color than the vertical lines, but it is

not necessary.Do not label anything.No X-axis, no Y-axis, no

numbers on the axes.Strategy:Divide the class in teams (if possible no more than 4 teams with no more than 7 students per team). Assuming that you have 4 teams, take 4 sheets of paper write the group symbol assigned to each team on top of their paper and ask them to list the names of their team on that paper. You may want to use X, O,/\, #, for the four different

symbols. After the students have written their names on their team

paper, collect the papers, write the 4 symbols on the board and list

the members of each team under their symbol. Leave enough space

between the team columns on the board so that you can insert checks

to keep track of who is up next when you play the game.Directions tostudents:The object of this game is to get four of your symbols in a

row, (next to each other) horizontally, vertically, or diagonally. At

the same time you may wish to prevent the other teams from getting

four of their symbols in a row. All teams start off with 20 points.

When a team gets four in a row, 4 points are added to its score, but

the other three teams get one point subtracted from their score. To

get your symbol on the graph choose a pair of numbers from the set

that is on the board {-4,-3,-2,-1, 0, 1, 2, 3, 4, }. You may use any

pair of numbers from this set including using the same number twice.

Once I call on you and you give me a pair of numbers,you must watchhow I move on the graph.I will not explain.Once you give me both

numbers of the pair you cannot change your mind, but it's O.K. to

change your mind after saying the first number. If the point described

by the pair of numbers that you give me is already occupied, you lose

your turn. Remember, the pair of numbers that you give me are

directions on how to move and I will follow those directions. Team

members may help each other, but only the person that I call on can

give me the pair of numbers. You cannot tell another team what to do.

Teams and/or individuals will have points taken off if they don't play

by the rules. Further directions to the teacher: Put a check on the

board after the student's name once they have taken their turn. Since

the number of students on each team will not always be the same, it

will help you keep track of who is next on that team when it is that

team's turn to play again. Two possible ways to end the game:

A) Once a team has four symbols in a row erase everything and start

over.

B) Once a team has 4 symbols in a row erase only those four symbols

and continue playing the game.

Either way the game will end when the bell rings.

There are several variations of this game and you may wish to develop

your own.