It's teacher vs. students...and this time, "The battle begins at sea!"
More than just drawing lines or plotting points...this time students have taken over an island...it will take you and your Navy to return them to school. But the students are not without defenses, they have an entire line (y-axis) of torpedo launchers ready to fire...if only they can remember their slope intercept (y=mx+b) coding from algebra class.
This activity will be very revealing as students give you y=mx+b equations in an attempt to sink your ships. And very fun as you tease them about how safe you feel with them on the guns. But eventually they give you a "dead on" equation...and by the time they have sunk the last ship, they will have a stronger grasp on linear equations. You get to decide how many shots sink the ships, one per ship for a quick game, or one per point for a longer game. A very fun game to get students involved and practicing.
This game involves graphing only into the first and fourth quadrants, however it translates well to four-quadrant graphing. You can refer back to the game, as in, "Remember when we played Battleship? The ships were all to right side. Begin your slope to the right."
Key Words: Graphing, linear, equations, slope-intercept.