Bringing mathematics and economics together to connect them in students' minds gives students very important skills they can use in their lives. This book is intended for high school mathematics teachers, with lessons designed to reinforce the mathematics concepts and processes taught by using examples from economics. The book consists of 15 lessons showing how mathematical processes and concepts may be applied in the study of economics and personal finance. It contains lessons connecting mathematics instruction to practical problems and issues that students will encounter through their lifetimes. The minimum level of mathematics students need for each lesson is noted in the Mathematics Focus section. The lessons begin with a warm-up activity to introduce the mathematics content of the economics lesson. Copy ready activity sheets, answers, visuals for making overhead transparencies, and extension activities are provided. The lessons also include a detailed procedure section with background on the concepts presented. The book contains the following lessons: (1) "The Nature of Demand"; (2) "The Nature of Supply"; (3) "Equilibrium: Determining Prices and Quantities"; (4) "Understanding the Mathematics of Changes in Supply and Demand"; (5) "The Gains from Trade"; (6) "The Mathematics of Linear Economic Shapes: Slopes and Elasticities"; (7) "The Mathematics of Nonlinear Economic Shapes: The Production Possibilities Curve"; (8) "The Mathematics of Nonlinear Economic Shapes: The Cubic Cost Function"; (9) "Profit Mathematics"; (10) "Powerball Economics"; (11) "Cash or Annuity?"; (12) "Autonomics"; (13) "Tax Math"; (14) "The Mathematics of Savings"; and (15) "The Mathematics of Credit Card Interest and Fixed Payments." (BT)