Although relations with Central America dominated U.S. foreign policy with its southern neighbors during the 1980s, relations with Mexico will likely shape U.S. foreign policy in the next decade. This book examines the troubled nature of the triangular link between Mexico, Central America, and the United States in order to understand the implications of U.S. policy for peace and development in the Western Hemisphere. The book begins with an analysis of Mexico's foreign policy and its historical role in seeking diplomatic solutions to volatile situations in Central America. The authors then assess the probable impact on the region of increased economic integration, particularly the U.S.-Mexico free trade agreement, especially important in light of Mexico's enormous debt and immigration issues. Special attention is also given to diplomatic aspects of the relationship, with a focus on the process of negotiations to resolve conflicts in Central America. A lengthy epilogue offers critical commentary on key issues discussed in the text by such prominent figures as Jesse Jackson, Carlos Vilas, David Ibarra, and Guadalupe Gonzales.

Collection of nearly 200 unusual problems dealing with congruence and parallelism, the Pythagorean theorem, circles, area relationships, Ptolemy and the cyclic quadrilateral, collinearity and concurrency and more. Arranged in order of difficulty. Detailed solutions.

This is a challenging problem-solving book in Euclidean geometry, assuming nothing of the reader other than a good deal of courage. Topics covered included cyclic quadrilaterals, power of a point, homothety, triangle centers; along the way the reader will meet such classical gems as the nine-point circle, the Simson line, the symmedian and the mixtilinear incircle, as well as the theorems of Euler, Ceva, Menelaus, and Pascal. Another part is dedicated to the use of complex numbers and barycentric coordinates, granting the reader both a traditional and computational viewpoint of the material. The final part consists of some more advanced topics, such as inversion in the plane, the cross ratio and projective transformations, and the theory of the complete quadrilateral. The exposition is friendly and relaxed, and accompanied by over 300 beautifully drawn figures. The emphasis of this book is placed squarely on the problems. Each chapter contains carefully chosen worked examples, which explain not only the solutions to the problems but also describe in close detail how one would invent the solution to begin with. The text contains a selection of 300 practice problems of varying difficulty from contests around the world, with extensive hints and selected solutions. This book is especially suitable for students preparing for national or international mathematical olympiads or for teachers looking for a text for an honor class.

Chemistry is often seen as a difficult subject to understand. This book focusses on the triangle model that Alex H. Johnstone developed in the early 1980s. The model has been applied in almost every area of education in chemistry at all stages of learning.

"A must-read for anyone who wants to be more successful." -Keith Ferrazzi, author of #1 New York Times bestseller Who's Got Your Back This engaging and eye-opening book presents a bold model for rising above either/or thinking, recasting the debate on everything from sex and politics to business and religion. With refreshing wit and honesty, business consultant and columnist Lisa McLeod reveals why most of what we've been told about conflict resolution and compromise is wrong-and why the answers to even the most complex problems are closer at hand than we might think. A rare combination of personal insight, business wisdom, and humor, The Triangle of Truth is a just-in-time read for anyone who is tired of the arguments, angst, and stalemates and is ready for real solutions to our problems, large and small.

A hilarious reeducation in mathematics-full of joy, jokes, and stick figures-that sheds light on the countless practical and wonderful ways that math structures and shapes our world. In Math With Bad Drawings, Ben Orlin reveals to us what math actually is; its myriad uses, its strange symbols, and the wild leaps of logic and faith that define the usually impenetrable work of the mathematician. Truth and knowledge come in multiple forms: colorful drawings, encouraging jokes, and the stories and insights of an empathetic teacher who believes that math should belong to everyone. Orlin shows us how to think like a mathematician by teaching us a brand-new game of tic-tac-toe, how to understand an economic crises by rolling a pair of dice, and the mathematical headache that ensues when attempting to build a spherical Death Star. Every discussion in the book is illustrated with Orlin's trademark "bad drawings," which convey his message and insights with perfect pitch and clarity. With 24 chapters covering topics from the electoral college to human genetics to the reasons not to trust statistics, Math with Bad Drawings is a life-changing book for the math-estranged and math-enamored alike.