This applet is designed for use with AQR Exploration 3.3.[br][br]Drag the two blue points to change the fraction of the grid shaded. [br][list][*]Is it possible to shade a given fraction of the grid in more than one way? [br][/*][*]How do you find the areas of squares that are only partially shaded? [br][/*][*]Which rational numbers can be represented using this applet? [br][/*][*]Are there any rational numbers that cannot be represented?[br][/*][/list]