Books with author Richard M. Koff

Barron’s SAT Subject Test: Math Level 2 with Online Tests features full-length practice tests with brand new questions, additional online practice, and updated content review.This edition features:Six full-length practice tests in the book with new questions and detailed answer explanationsTwo full-length online practice tests with automatic scoringUpdated content review, particularly of rational functions and conic sections, with clear examples and explanationsDiagnostic test and self-evaluation charts help identify areas of improvementAll chapters have been fully updated and include clear examples, explanations, and practice exercisesScoring rubrics to determine raw and scaled scoresOverview of the exam, information about calculator use and scoring, and tips to increase your scoreContent review covers several types of functions; transformations and symmetry; conic sections; polar coordinates; three-dimensional geometry; counting; complex numbers; matrices; sequences and series; vectors; statistics; probability; and much more.

Be more effective with less effort by learning how to identify and leverage the 80/20 principle: that 80 percent of all our results in business and in life stem from a mere 20 percent of our efforts.The 80/20 principle is one of the great secrets of highly effective people and organizations.Did you know, for example, that 20 percent of customers account for 80 percent of revenues? That 20 percent of our time accounts for 80 percent of the work we accomplish? The 80/20 Principle shows how we can achieve much more with much less effort, time, and resources, simply by identifying and focusing our efforts on the 20 percent that really counts. Although the 80/20 principle has long influenced today's business world, author Richard Koch reveals how the principle works and shows how we can use it in a systematic and practical way to vastly increase our effectiveness, and improve our careers and our companies.The unspoken corollary to the 80/20 principle is that little of what we spend our time on actually counts. But by concentrating on those things that do, we can unlock the enormous potential of the magic 20 percent, and transform our effectiveness in our jobs, our careers, our businesses, and our lives.

This manual opens with a diagnostic test that includes explained answers to help students pinpoint their math strengths and weaknesses. In chapters that follow, detailed topic reviews cover polynomial, trigonometric, exponential, logarithmic, and rational functions; coordinate and three-dimensional geometry; numbers and operations; data analysis, statistics, and probability. Six full-length model tests with answers, explanations, and self-evaluation charts conclude this manual. The manual can be purchased alone or with an optional CD-ROM that presents two additional full-length practice tests with answers, explanations, and automatic scoring.

Barron’s SAT Subject Test Math Level 2 Flashcards have the key content review you need to feel prepared and confident on test day. This set covers the most important topics, formulas, equations, and key terms on the exam. You’ll get an overview of the Level 2 Mathematics Subject Test, as well as practice questions for each of the 15 topics on the exam. You can quiz yourself and see what you know and where you need to study more.Cards have a punch-hole in one corner so you can use the enclosed keyring to arrange the cards in whatever order you need to study.

This manual opens with a diagnostic test that includes explained answers to help students pinpoint their math strengths and weaknesses. In chapters that follow, detailed topic reviews cover polynomial, trigonometric, exponential, logarithmic, and rational functions; coordinate and three-dimensional geometry; numbers and operations; data analysis, statistics, and probability. Six full-length model tests with answers, explanations, and self-evaluation charts conclude this manual. The manual can be purchased alone or with an optional CD-ROM that presents two additional full-length practice tests with answers, explanations, and automatic scoring.

The ancient Greeks were famous for their love of competition and athleticism. Their most important sporting festival, held at Olympia and honoring Zeus, became the inspiration for our modern Olympic games. It was open to the citizens of every Greek polis, and became so important, that all warfare had to be suspended for its duration. This book runs through the entire five-day session of the ancient games. The athletes' training and the actual sporting events--some familiar, some quite strange to the modern reader--are described in vivid detail and illustrated with both classical art from the collections of the British Museum and photographs of the modern Games. Day Two, for instance, starts with morning activities (a procession into the hippodrome, chariot and horse races), followed by the afternoon pentathlon events (discus, javelin, running, jumping, and wrestling), and ends with the evening celebration (winners' parade, victory hymns, feast, and revels). Supplemental sidebars--such as Homer's description of Odysseus' triumphant discus throw and an explanation of why athletes and trainers had to appear naked--add lively, colorful detail. Commentary on the modern Games and a running comparison of modern and ancient athletic events is scattered throughout the book, providing an important historical perspective on today's Olympics. Three supplemental chapters--"Women at the Olympics," "Games Elsewhere in Greece," and "The End of the Olympics"--complete this fascinating look at ancient Greek customs, competitive spirit, and character.

Christopher is 13 and often too smart for his own good. He hates school and cant seem to stay out of trouble. On a dare he knocks on a door to a house all his friends say is haunted and meets a strange, quiet man who calls himself the Headmaster.The Headmaster starts Christopher on a series of lessons unlike anything he was taught in school. He learns how to move objects with his mind alone, how to read other peoples thoughts, he becomes invisible or shrinks to the size of a pencil.Its not just for fun. The Headmaster has a mission for Christopher that will change his life forever.

The gods and goddesses of ancient Greece and Rome have long been popular subjects in Western art, and references to them continue to appear today in art, literature, and films. This handy, portable reference book includes individual entries on more than forty of the most frequently represented gods and goddesses, as well as related mythical creatures, such as Fates and Furies, and lesser-known gods from outlying areas of the Greco-Roman world. Woff concisely presents the defining exploits and attributes of these colorful characters and illustrates their stories with a variety of art works--including ancient vases, paintings, sculpture, terra-cottas, and coins--that dramatically depict their lives. Because the ancient Romans adopted many of the Greek gods under different names--for instance, the Greek goddess of love, Aphrodite, became the Roman goddess Venus--the author helpfully gives the Roman names and attributes of the gods along with their Greek equivalents. An alphabetical table of contents is included to help readers easily locate a particular god or goddess in the book. For ages 12 and up.