Schools and parents looking for innovative ways to enhance math skills of upper-elementary and middle school students now have a fun new tool available to them: Size It Up by Leading Step, Inc. <A HREF="http://mobilitynewswire.prwebdirect.com/releases/2005/10/mobilitynewswire296887.htm">Size It Up is a series of three games</A> that are played on Palm OS handheld computers to help students identify and compare numbers and math operations.