Intercept (b) of a line (Coordinate Geometry)
An interactive applet and associated web page that demonstrate the intercept (b) of a line. The applet has two points that define a line. As the user drags either point it continuously recalculates the intercept, the point where the line crosses the y-axis at x=0. Can be used in conjunction with the slope to derive the equation of a line. The grid, axis pointers and coordinates can be turned on and off. The intercept calculation can be turned off to permit class exercises and then turned back on
Author(s): John Page

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Equation of a line - point - slope form. (Coordinate Geometry)
An interactive applet and associated web page that demonstrate the equation of a line in point-slope form. The user can move a slider that controls the slope, and can drag the point that defines the line. The graph changes accordingly and equation for the line is continuously recalculated with every slider and / or point move. The grid, axis pointers and coordinates can be turned on and off. The equation display can be turned off to permit class exercises and then turned back on the verify the a
Author(s): John Page

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Equation of a line - slope and intercept form. (Coordinate Geometry)
An interactive applet and associated web page that demonstrate the equation of a line in coordinate geometry. The equation is in the form y=mx+b. The user can move two sliders that control a and b. The graph changes accordingly and equation for the line is continuously recalculated with every slider move. The grid, axis pointers and coordinates can be turned on and off. The equation display can be turned off to permit class exercises and then turned back on the verify the answers. The applet can
Author(s): John Page

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Distance between points
An interactive applet and associated web page that demonstrate how to find the distance between two points with given coordinates. The applet has two points on a Cartesian plane. As the user drags either point it continuously recalculates the distance between them. The distance is shown both on the plane and as a continuously changing formula. The grid, axis pointers and coordinates can be turned on and off. The distance calculation can be turned off to permit class exercises and then turned bac
Author(s): John Page

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Two perspectives on slavery: A comparison of personal narratives
Students will read and analyze personal narratives written by two North Carolinians: Mary Norcott Bryan and William Henry Singleton. The authors’ lives share many parallels; both were born and grew up on plantations in New Bern during the 1830s and 1840s, both experienced the hardships of the Civil War, and both wrote their “recollections” in the early 20th century, looking back on their lives in North Carolina. However, Bryan was the white daughter of a wealthy slaveholder, while Singleto
Author(s): Dayna Durbin Gleaves

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River City Project
As visitors to River City, students travel back in time, bringing their 21st century skills and technology to address 19th century problems. With funding from the National Science Foundation, we have developed an interactive computer simulation for middle grades science students to learn scientific inquiry and 21st century skills. River City has the look and feel of a video game but contains content developed from National Science Education Standards, National Educational Technology Standards, a
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General Physics I, Summer 2009
This course is the first of a two-part introductory general physics course intended for non-physics majors. Doing well in this course does not require you to be a “genius”, but you will have to think about the physical concepts in order to understand them and you will have to apply these ideas in order to solve computational problems. To accomplish the former, all you really need is your brain (in good working order) and the willingness to use it. To accomplish the latter, you will need s
Author(s): Earl Skelton

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General Physics II, Spring 2009
This course is the second of a two-part introductory, calculus based, general physics course intended for non-physics majors. The course is designated to train you in a wide variety of problem-solving skills that you will be able to transfer far beyond this physics course. Doing well in this course does not require you to be a “genius”, but you will have to think about the physical concepts in order to understand them and you will have to apply these ideas in order to solve computational p
Author(s): Earl Skelton

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Econometrics
This is a project to develop a document for teaching graduate econometrics that is "open source", specifically, licensed as GNU GPL. That is, anyone can access the document in editable form, and can modify it, as long as they make their modifications available. This allows for personalization, as well as a simple way to make contributions and error corrections. The hope is that people preparing to teach econometrics for the first time might find it useful, and eventually be motivated to contribu
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Hindsight
Welcome to Hindsight, an online history project that will transport you back to New York City on May 8, 1970. Your mission is to determine what happened on that day, and what meaning it might hold for us today. Our site uses the web's characteristics to foster historical inquiry -- you will navigate through multiple sources of evidence, explore diverse perspectives, and make connections within this "web" of material. The site is part archive, part essay, and part interactive exhibit.
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A Look Back at Braddock
A Look Back at Braddock District is a local history, the story of a rural region in the heart of Fairfax County, Virginia, transformed over time into a sprawling suburb of Washington, DC. The memories of more than 50 Northern Virginia residents are captured in oral histories. Photographs, documents, maps and artifacts amplify these personal experiences and document growth and change in the area. The site offers lesson plans and activity ideas as well as other resources in a database. Explore ta
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Drosophila
Discover and apply principles of genetic inheritance by studying the inheritance patterns of fruit flies in a virtual environment. You will work on a virtual lab bench from which you can order fruit fly mutants from a web merchant, mate the flies in an incubator, anesthetize flies for observation, examine flies under a microscope, and analyze the data from offspring to determine patterns of inheritance. Your task is to propose hypotheses, design experiments, and analyze and interpret the data fr
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Software Engineering for Web Applications
Teaches basics of designing a dynamic web site with a database back end, including scripting languages, cookies, SQL, and HTML with the goal of building such a site as the main (group) project Emphasizes computer-human interface and the graphical display of information. Crucial to the project is the identification of a client with whom the group must work with throughout the month, designing specifications, implementing them, reviewing and evaluating, and testing. This is a real-life client who
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Naming Triangles
In this exercise you will name triangles.
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Game On! The Ultimate Wellness Challenge
This site is a back-to-school effort to promote nutrition, physical activity, and learning. It includes a database of changes schools can make to improve nutrition and physical activity. Topics in the Resources to Improve Schools database include advertising, after school programs, a la carte foods, assessment tools, childhood obesity, family outreach, nutrition education, physical activity, physical education, school meal programs, and staff wellness.
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A Field Study of the Ant Trail Phenomenon
In this exercise, students place food at various distances from an ant hill or nest. Ants are then observes as they find the bait and lead other ants to it. At the completion of the exercise, students construct a graph which shows the establishment of trails, recruitment of workers, and depletion of the bait.
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Water, Energy, and Pollution in the Twentieth Century 2 from the course American Environmental and C
American Environmental and Cultural History - Fall 2006. This course presents a history of the American environment and the ways in which different cultural groups have perceived, used, managed, and conserved it from colonial times to the present. Cultures include American Indians and European and African Americans. Natural resources development includes gathering-hunting-fishing; farming, mining, ranching, forestry, and urbanization. ...
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"Equal and Exact Justice to Both Races": Booker T. Washington on the Reaction to his Atlanta Comprom
The Atlanta Compromise speech, which Booker T. Washington delivered before the Cotton States and International Exposition in 1895, established Washington as the leading black spokesman in America. He came to control enormous amounts of northern white philanthropy directed at African Americans as well as much of the federal patronage dispensed to them by the Republican party. In this excerpt from his autobiography Up From Slavery, Washington described the reactions of both black and white America
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"Drug Him Through the Street": Hughsey Childes Describes Turn-of-the-Century Sharecropping
The sharecropping system that emerged in the South in the last three decades of the 19th century afforded southern black families a certain measure of control over their daily lives and labor. But the white landowners were able to use the legal mechanisms of sharecropping to assure control over the largely African-American workforce that toiled on the farms. Here Hughsey Childes, interviewed by historian Charles Hardy in 1984, described what seems like a matter of fact exchange in which the whit
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"The Men Seem To Be Pretty Well Satisfied": John Anderson on the 1919 Steel Strike
In the dramatic 1919 steel strike, 350,000 workers walked off their jobs and crippled the industry. The U.S. Senate Committee on Education and Labor set out to investigate the strike while it was still in progress. In his testimony before the committee, John Anderson, a helper in the open-hearth furnace at the Homestead steelworks in Pennsylvania, maintains that the steelworkers were satisfied with conditions. Although born in Scotland, Anderson identified himself as an"American" in distinction
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