Carbaugh Xtra!, packaged with every new textbook, provides complimentary access to the following set of online learning tools. Visit Carbaugh Xtra! and see the DEMO. (If you have a used textbook, you can purchase access to the Macro Xtra! Web site at: http://carbaughxtra.swcollege.com).
	Graphing/Derivatives Tutorials A learning resource for help in mastering the language of graphs and derivatives, these tutorials cover the ten most difficult concepts for studentss.
	Economic Applications (e-con @pps) links - EconData and EconDebate online features that closely relate concepts discussed in the text to the latest contemporary applications.
	Xtra! Quizzing - You can create and take randomly-generated quizzes on whichever chapter(s) you wish to test yourself, and endlessly practice for exams.