Chapter 4 Individuals and Community (pdf 373kb)
  Chapter 4 Slides (pdf 44kb)
  Prod Possibilities and Efficiency (pdf 72kb) Answer
  Math Review (pdf 33kb) Math Review (XLS 27kb)
  Production Possibilitites (xls 105kb) PPF Flash (swf 296kb)
  PowerPoint: MathReview (741kb) PPF (584kb)
  All of Part 1 Alternative Microeconomics (1.2mb)