Math Nook's Coordinate Grid application is an excellent teaching tool that interactively teaches the use of the coordinate grid. Features include: three teaching modes (show, quiz, and random); animation that helps students visualize how the coordinates are derived; easy to resize and move the application (great for interactive whiteboards) for custom views; and uses vector graphics that stay sharp looking when resized. Video link to demonstration of this product is available on www.mathnook.com in the Teaching Tools section or video can be found by searching for "coordinate grid mathnook" on www.youtubecom.