Graphing Battleship

I was looking online for some activities to use for middle school math and one of the things I found was Graphing Battleship. This activity is on education.com. This link will take you to the activity: Play Graphing Battleship. Basically, it is the game of Battleship but each player has Cartesian coordinate planes for the playing boards and use coordinates for looking for hits. So instead of A4, a player asks for (4,-3). This would be a good activity to fit into the Grade & Geometry and Spatial Sense curriculum. It would fit under the Overall Expectation to describe location in the four quadrants of a coordinate system, dilate two-dimensional shapes, and apply transformations to create and analyse designs and the Specific Expectation to plot points using all four quadrants of the Cartesian coordinate plane. I think this would provide good practice in plotting and naming coordinates. It could be an activity students could do together if they had some extra time or as a centre activity. It gets students using the language associated with coordinates and plotting points by doing an activity with purpose.