A dilation is a non-rigid transformation, which means that the original and the image are not congruent. They are, however, similar figures. This video demonstrates how to perform dilations. (2:25)
Norman Borlaug: 60 Years of Fighting Hunger
Norman E. Borlaug was awarded the 1970 Nobel Peace Prize for developing methods to help the world's poorest nations feed themselves. Born of Norwegian descent, Dr. Borlaug was raised near Cresco, a small farming community in northeast Iowa. He earned a B.S. in forestry and M.S. and Ph.D. degrees in plant pathology from the University of Minnesota. From 1942 to 1944, Dr. Borlaug worked as a microbiologist for E.I. Dupont de Nemours Foundation, in charge of research on industrial and agricultural
Growing up colonial meant babies in crash helmets and boys in dresses. Program developer Kristin Spivey compares childhood now and then.
Fundamentals of Die Casting Design
This book describes the fundamentals of design of the die casting process and die mold/runner. It is intended for people who have at least some knowledge of the basics of fundamental science, such calculus, physics etc. This book will benefit the die casting engineer (the project and process engineers) as well as managers and anyone else who deals with the die casting operations will find this information useful.
Fundamentals of Compressible Flow Mechanics
This book deals with an introduction to the flow of compressible substances (gases). The main difference between compressible flow and almost incompressible flow is not the fact that compressibility has to be considered. Rather, the difference is in two phenomena that do not exist in incompressible flow. The first phenomenon is the very sharp discontinuity (jump) in the flow in properties. The second phenomenon is the choking of the flow. Choking is when downstream variations don't effect the fl
Math in Society
Math in Society is a free, open textbook. This book is a survey of mathematical topics, most non-algebraic, appropriate for a college-level topics course for liberal arts majors. The text is designed so that most chapters are independent, allowing the instructor to choose a selection of topics to be covered. Emphasis is placed on the applicability of the mathematics. Material for each topic is covered in the main text, with additional depth available through exploration exercises appropriate for
Topics in Medieval Japanese History
This book differs from many other textbooks in that it contains relatively less political, institutional and military history and relatively more social and cultural history than is typically the case. Within the cultural history of medieval Japan, Buddhism is of the utmost importance. This book therefore contains an introduction to the origin and major teachings of Buddhism. Subsequent chapters expand on this introduction in the context of Japanese history.
This book emphasizes a succession of topics rather than strict adherence to the flow of time. In a general way, the chapters move from earlier periods of time to later periods of time, but their content and organization gives top priority to coverage of topics. While the "mainstream" narrative of politics and institutions is present in these pages, the emphasis is on social and cultural history wherever possible.
Topics in Pre-Modern Chinese History
A goal of this book and the course as a whole is to encourage broad, integrative thinking about history and human affairs. Readers are encouraged to compare Chinese history with the histories of other parts of the world and with contemporary problems and issues. Readers are also encouraged to think about the process of history making (i.e., writing) itself.
Topics in Pre-Modern Japanese History
This book emphasizes a succession of topics rather than strict adherence to the flow of time. The chapters move from earlier periods of time to later periods of time, but their content and organization gives top priority to coverage of topics. While the "mainstream" narrative of politics and institutions is present in these pages, the emphasis is on social and cultural history wherever possible.
Peer 2 Peer University
The Peer 2 Peer University (P2PU) is an online community of open study groups for short university-level courses. Think of it as online book clubs for open educational resources. The P2PU helps you navigate the wealth of open education materials that are out there, creates small groups of motivated learners, and supports the design and facilitation of courses. Students and tutors get recognition for their work, and we are building pathways to formal credit as well.Currently P2PU is in a pilot ph
Looking at Ourselves and Others
introduces students to the concepts of perspective, culture, and cross-cultural relations. The guide is designed to help students recognize and appreciate differences in perception among individuals and cultures, define culture and recognize its role in developing perceptions of ourselves and others, challenge assumptions, promote cross-cultural awareness, and provide opportunities to practice the behaviors that make cross-cultural communication possible.
Splish-Splash: Daily Use of Water
This unit is designed to facilitate students' understanding of daily water use through reading stories from Peace Corps Volunteers who served in Kenya (East Africa) and Ghana (West Africa). As a product of this unit, each student will make a book comparing daily uses of water in America, Kenya, and Ghana. An overall goal is to develop students' understanding of the similarities and differences in water use among the people of Kenya, Ghana, and their own community. Grades 1-2 (Can be adapted to I
New York: A Documentary Film
Thirteen's Educational Publishing Department prepares educational kits to accompany certain television programming. These guides are available in print and, electronically, as PDFs (Portable Document Format), through the Web. This Teacher's Guide accompanies the program NEW YORK: A DOCUMENTARY FILM. The guide is intended to help use the film as a supplement to junior-high and high-school social-studies courses. Selected activities may also be used in language arts, music, and art classes. Key th
This guide is designed to take advantage of the educational information in the three-part PBS series BENJAMIN FRANKLIN (PBS airdate November 19-20, 2002), directing teacher’s to specific sections of the series relevant to the lesson plan. The lessons engage students with a media-rich environment that employs video, DVD, computers, and the Internet in addition to more traditional print resources. The lesson plans are flexible, allowing teachers to adapt the instruction to their particular needs
Tapping the Roots of American Music
Teacher's Guide for using the American Roots Music documentary series in the classroom. The resources offered here are designed to help you use the PBS American Roots Music video series and companion Web site in middle school and high school social studies and history classes. American Roots Music may be taped off-air and used for up to a year following broadcast, or you may choose to purchase it through Shop PBS for Teachers.
Fight Bac! Food safety education: Grades 4-8
Your Game Plan to Food Safety - the teacher's activity and experiment guide, a comprehensive guide to teaching FightBAC! in the classroom. How Children FightBAC! meets State Core Curriculum requirements for Health Education. fightbac.org, the website of the Partnership for Food Safety Education (PFSE), is your resource for Fight BAC! food safety and safe food handling campaign information.
Andreas Vesalivs: De Humani Corporis Fabrica
This site presents Andreas Vesalius' anatomical atlas, On the Fabric of the Human Body (1543, 1555) in a new way and explains this effort to translate and annotate it. Never before completely translated into English, Vesalius' account of human anatomy transformed its subject and changed medical education in the West.
Enter the world of PowerUp, a free, online, multiplayer game that allows students to experience the excitement and the diversity of modern engineering! Playing the game, students work together in teams to investigate the rich, 3D game environment and learn about the environmental disasters that threaten the game world and its inhabitants. Teacher's guide and lesson plans included.
Educator's Guide to Hosting a Global Health Conference
This guide uses biology, health, and world study topics to engage students in global health issues and solutions from experiential and multidisciplinary perspectives. The guide offers an outline of how to organize and host a "Global Health Conference," and provides suggestions regarding logistics and instructions as well as resource materials for preparing and organizing a student conference. The Global Health Conference is a school event where students present display boards and two-page essays