
Subsets & Sets Math Help Game Tips:  In this game, the rectangular shape 'U' represents the Universal set of members for all possible sets.  If set P is a circular region inside U, then the set 'not P' is the region outside circle P and inside U. The set 'not P' refers to all members of set U that are not members of set P.  When selecting members from two sets, the word 'and' refers to the overlapping region P and Q. P and Q is called the intersection set. If set P is completely inside set Q, then P is called a subset of Q resulting in (P and Q) = P. If set Q is completely inside set P, then Q is called a subset of P resulting in (P and Q) = Q. If set P and set Q do not overlap , then they are disjoint sets with the result (P and Q) = empty = Null set.  When selecting members from two sets, the word 'or' refers to the entire region including P or Q. P or Q is called the union set. [The 'exclusive or' concept is not used in this game.] If set P is completely inside set Q, then P is a subset of Q resulting in (P or Q) = Q. If set Q is completely inside set P, then Q is a subset of P resulting in (P or Q) = P.  It may take a minute to load the game at dialup speeds.  The game can be played using the mouse by itself or using the keyboard by itself.  The score report automatically appears after you have made 10 choices.  The Subset score is based on your choices only and does not count the bird hits.  The Game score is reduced by the number of bird hits.  If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus.  The game speeds up as your score increases. Adjust this with the  and + keys.  Refresh/Reload the web page to start over again. 
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