Mr. Gray’s fourth period used the game “sets” to analyze how Pepperberg completed her study with Alex the Parrot. Pepperberg studied whether or not a bird can tell if two objects are the same or different and if so is it the color, shape, or material? The game set has a bunch of cards and you must match each set with three cards. The cards have to be all the same or all different. This game perfectly sums up Pepperberg’s experiment with Alex.