The Perseus Digital Library
Perseus is an evolving digital library, engineering interactions through time, space, and language. Our primary goal is to bring a wide range of source materials to as large an audience as possible. We anticipate that greater accessibility to the sources for the study of the humanities will strengthen the quality of questions, lead to new avenues of research, and connect more people through the connection of ideas.
Smithsonian: Art and Design
This site features modern portrait drawings, historical portraits of famous Americans, African and Asian art, modern Japanese prints, works of Latino artists, illustrated manuscripts of Persian lyrical poetry, paintings by James Whistler and Gerhard Richter, lighthouse postcards, lunch containers, Tibetan ...
Corneal Ulceration in South East Asia
This dataset has been added as an experimental use of Open Context for public health data sharing applications. Corneal ulceration is a major cause of blindness in many parts of the world, but in South East Asia the WHO estimates that there are as many as 12 million blinding ulcers every year in a population of 1.6 billion. Now that we know the main causes of these ulcers it is possible to prevent the occurrence of most of them with simple, grass-roots, public health measures. The development of
NASA CONNECT Better Health from Space to Earth
In NASA CONNECT Better Health From Space to Earth, students will learn about the importance of good nutrition and exercise. They will investigate what we can learn in space about our bodies here on Earth. Students will see how researchers and scientists apply the mathematics concepts of measurement and estimation to study the loss of calcium in bones and the loss of muscle mass while astronauts are living and working in space. Grades 6-8.
NASA CONNECT Data Analysis and Measurement: Dancing in the Night Sky
In NASA CONNECT Dancing in the Night Sky, students will learn about the Aurora Borealis or Northern Lights. They will learn the many legends and myths that have revolved around the aurora throughout the history of mankind. Students will also discover how NASA scientists and engineers use satellite technology to measure and analyze aurora data. They will see how Norwegian scientists apply the concepts of data analysis and measurement to study the Northern Lights by using ground-based instruments
NASA CONNECT Hidden Treasures: Landscape Archaeology
In NASA CONNECT: Landscape Archaeology: Hidden Treasures, students will learn how researchers and scientists use data collected through remote sensing to study hidden features on the Earth's surface and to discover the environmental and archaeological effects left by ancient cultures. Students will see how archaeologists use the math concepts of coordinate geometry and powerful geographic information system (GIS) software to solve current world problems by investigating clues from the past. Grad
NASA CONNECT Mirror, Mirror on the Universe
In NASA CONNECT Mirror, Mirror on the Universe, students discover how algebra and telescopes are used in space exploration and why optics, which is the study of light, is important in astronomy. Students learn about the Hubble Space Telescope, Hubble Deep Field, and how NASA engineers use algebra in their work.
The ABC's of Nuclear Science
The ABC's of Nuclear Science is a brief introduction to Nuclear Science. We look at Antimatter, Beta rays, Cosmic connection and much more. Visit here and learn about radioactivity - alpha, beta and gamma decay. Find out the difference between fission and fusion. Learn about the structure of the atomic nucleus. Learn how elements on the earth were produced. Do you know that you are being bombarded constantly by nuclear radiation from the Cosmos? Discover if there are radioactive products found i
College Lesson Study Project
The process of Lesson Study is a unique form of collaborative classroom inquiry, frequently practiced in Japanese elementary schools, in which a small team of instructors designs, teaches, studies and refines a single class lesson.
Internet Ancient History Sourcebook
The Internet Ancient History Sourcebook is a companion to the Internet Medieval Sourcebook and the Internet Modern History Sourcebook. The Medieval Sourcebook is both a classroom resource and the largest collection of online medieval texts. The Ancient and Modern Sourcebooks have a different role: since there are already ample online repositories of texts for these periods, the goal here is to provide and organize texts for use in classroom situations. Links to the larger online collections are
Internet Medieval Sourcebook
Historians teaching medieval history surveys almost always want to combine a textbook, a sourcebook, and additional readings. Textbooks, as an ever-evolving form, are probably worth the cost, but sourcebooks are often unnecessarily expensive. Unlike some modern history texts, the sources used for medieval history have been around a long time. Very many were translated in the 19th century, and, as a rapid review of any commercial source book will show, it is these 19th century translations which
Internet Modern History Sourcebook
The Internet Modern History Sourcebook is one of series of history primary sourcebooks. It is intended to serve the needs of teachers and students in college survey courses in modern European history and American history, as well as in modern Western Civilization and World Cultures. Although this part of the Internet History Sourcebooks Project began as a way to access texts that were already available on the Internet, it now contains hundreds of texts made available locally.
01 - Introductions: Why Does the Civil War era have a hold on American Historical Imagination?
Professor Blight offers an introduction to the course. He summarizes some of the course readings, and discusses the organization of the course. Professor Blight offers some thoughts on the nature of history and the study of history, before moving into a discussion of the reasons for Americans' enduring fascination with the Civil War. The reasons include: the human passion for epics, Americans' fondness for redemption narratives, the Civil War as a moment of "racial reckoning," the fascination wi
For many years scholars have recognized that late nineteenth-century Durham, North Carolina makes an ideal case study for examining emancipation, industrialization, immigration, and urbanization in the context of the New South. "With its tobacco factories, textile mills, black entrepreneurs, and new college," the historian Syd Nathans observes, "Durham was a hub of enterprise and hope." By the early twentieth century, Durham became renowned for its vibrant entrepreneurial spirit. Both W.E.B. Du
Culturally Engaged Instruction (CEI): Putting theory into practice
As an English teacher at a rural all-Black high school in the Mississippi Delta, Renee Moore enjoyed a genuine fellowship with her students, many of whom she worked with outside of school in church and community activities. Lessons in literature and writing went reasonably well (for a beginning teacher), but when she started to teach grammar, her students seemed to 'hit a brick wall.' She had two simultaneous responses to the wall. She immediately started searching for and experimenting with mor
An Alternative Approach to General Chemistry: Addressing the Needs of At-Risk Students with Cooperat
This site presents a study on the impact of incorporating cooperative learning activities in a large section (>200 'at-risk' students) of General Chemistry. It includes data documenting students' performance in the course and in more advanced science courses, course materials, and videotapes illustrating cooperative problem solving in small groups. Jacobs' website provides graphic representations of his results, a site library with access to his methods and analyses and video clips showing stude
The modern advertising industry really began in the early 1900s. These early advertising images show how companies approached the business of selling products, places, and ideas in the early 20th century. Overview The promotion of products, particularly national brands, began to become more prevalent in the early 1900s. Some categories of advertising shown in this group of images are still with us today: cars, cigarettes, and products aimed at homemakers. In California, car dealers and garages
Data Collection and Organization
The Data Collection and Organization (DC&O) text module provides background on useful, general-purpose software tools. The aim is to discuss types of generic software that virtually every well-equipped scientist uses. This includes: spreadsheets, database programs, statistics packages, graphics programs, and word processors. DC&O includes several examples of the use of these tools in biology. These include 'An Embryological Example with Tips and Tricks' and the complete text and dataset of a cl
Environmental Decision Making
Using the Extend 'connect-the-components' visual programming, students can model and simulate ecosystems including social and economic forces as well as study parameter variations to develop an understanding of ecosystem function and productivity. By making 'what if...' changes in the model, the effects of various proposed decisions about the environment can then be shown. EDM includes three ecological systems: Ponds, Grasslands, and Logging. Students can predict results of changes in the mode
Introduction to Groups, Invariants and Particles
Introduction to Groups, Invariants & Particles is a book for Seniors and advanced Juniors who are majoring in the Physical Sciences or Mathematics. The book places the subject matter in its historical context with discussions of Galois groups, algebraic invariants, Lie groups and differential equations, presented at a level that is not the standard fare for students majoring in the Physical Sciences. A sound mathematical basis is thereby provided for the study of special unitary groups and their