QELP New Book Information We are pleased to announce the publication of a new "liberal arts" college-level mathematics textbook titled Quantitative Reasoning and the Environment. More information about the text can be found at www.enviromath.com or by contacting Prentice Hall. The focus of our text is data analysis of real environmental data and modeling with functions and difference equations. The intended audience is non-science majors in grades 12-14. The text assumes the use of the TI-83 (or similar) graphing calculator, or online applets. Our text has been class tested in both stand-alone mathematics courses (click here for more information) and in our interdisciplinary math and environmental science course (click here for more information). In both academic settings results were very positive. Table of contents A brief table of contents for our text is listed below. To view an extended table of contents, click here. 1) Measurement and Units 2) Ratios and Percentages 3) Displays of Data 4) Linear Functions and Regression 5) Exponential Functions and Regression 6) Power Functions and Regression 7) Introduction to Difference Equations 8) Equilibrium Values and Stability 9) Logistic Difference Equations and Chaos 10) Systems of Difference Equations 11) Fundamentals of Statistics 12) Measures of Variability 13) Normal Distributions Projects Each chapter in integrated with a student project.  The projects draw heavily on real world data, sometimes provided by the instructor, sometimes gathered by the students themselves. The projects promote student investigation and collaboration, and make use of common classroom resources (rulers, maps, graphing calculators, etc.). In one project, students measure the sizes of 35 sinkhole lakes in a Florida quadrangle, and analyze the data in various ways to learn more about measurement, units and graphing. Another project integrates the basic statistical analysis of normal distributions and the environmental topic of hazardous waste. Click on the following link to see this exercise in full: Project: Hazardous Waste and Statistical Analysis. Here are titles of projects we've written to date: Florida Lakes, Measurement and Units Puget Sound Butter Clams and Linear Regression Food and Exponential Regression Douglas Firs, Statistics and Regression United States Population and Difference Equations World Population and Difference Equations Stream Discharge and Cross sectional Area Water Quality, Pollutants, and Systems of Difference Equations Hazardous Waste and Statistical Analysis Energy Consumption and the Normal Distribution Earthquakes and Power Law Distributions Impervious Surface and an Urban Environmental Quality Index. Top