Everything you need to know about rational functions in high school.
Naive Room Response Deconvolution
ELEC 301 project by William Howison, Chris Lamontagne, Bryce Luna, and David Newell. Given the output of a system and the system characteristics we can determine the input. We will determine the system characteristics of two rooms by playing an (approximate) impulse and recording the impulse response, and then we will play music into the same rooms and record the output. Using MATLAB we will deconvolve the output with the system response to determine a rough approximation of the input.
Explore NOVA Online's interactive steam engine and discover how this machine can convert heat to mechanical energy.
Virtual Lava Tube
This interactive resource adapted from The Virtual Lava Tube by Dave Bunnell, presents images of different features found in lava tube caves and includes detailed information on how these features are formed and where they occur.
Acids and Bases: Cabbage Juice Indicator
In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.
Little Rock Nine
This collection of photos shows scenes from the controversial desegregation of Central High School in Little Rock, Arkansas in 1957.
A Class Divided 3: An Interview with Jane Elliott
In this Web-exclusive interview for FRONTLINE, Jane Elliott discusses her abiding sense that her lesson on bigotry is as necessary today as it was in 1968.
Segregated Schooling in Alabama
This scrapbook documents conditions in Birmingham's segregated schools in 1963, as well as white resistance to integration.
Bus to the Burbs
This video excerpt from La Plaza: "Bus to the Burbs" looks at METCO, a voluntary busing program in Boston.
The Power of Self-Portraits
Exploration of the topic of self-portraiture. Offers ideas on experimenting and developing ideas, culminating in a set number of finished pieces of work.
A nonsense sentence is provided and children are required to work out the answers to some questions.
Song in the Curriculum
This teaching resource is aimed at higher level. It includes two methodologies which enable students to engage a number of syllabus requirements simultaneously: one on the general theme of teaching by topic; the second a specific lesson plan for one particular song.
The Big Strike : A Journalist Describes the 1934 San Francisco Strike
On May 9, 1934, International Labor Association (ILA) leaders called a strike of all dockworkers on the West Coast who were joined a few days later by seamen and teamsters, effectively stopping all shipping from San Diego to Seattle. San Francisco would become the scene of the strike's most dramatic and widely known incidents, aptly described in one headline as "War in San Francisco!" On Bloody Thursday, July 5, 1934, two strikers were killed by the San Francisco police. A mass funeral march of
"Kill the Indian, and Save the Man": Capt. Richard C. Pratt on the Education of Native Americans
Beginning in 1887, the federal government attempted to "Americanize" Native Americans, largely through the education of Native youth. By 1900 thousands of Native Americans were studying at almost 150 boarding schools around the United States. The U.S. Training and Industrial School founded in 1879 at Carlisle Barracks, Pennsylvania, was the model for most of these schools. Boarding schools like Carlisle provided vocational and manual training and sought to systematically strip away tribal cultur
Deaf and Unemployed in Dubuque: The DiMarcos Remember the Great Depression
The New Deal launched a series of federal employment programs, including the Works Progress Administration (WPA), which not only provided jobs but also initiated many important studies of the depression's human toll. One such study, published by the WPA Division of Research in 1939, included transcripts of interviews by WPA workers with Dubuque, Iowa, families. The DiMarcos interview revealed that the disabled faced a double challenge during the depression: finding employment while competing for
"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
"I Always Had Pads with Me": A G.I. Artist's Sketchpad, 1943-1944
In the wake of the attack on Pearl Harbor and the declaration of war, thousands of Americans enlisted in the U.S. armed forces. Among them was twenty-year-old Bronx resident Ben Hurwitz. Like many of the men and women who entered military service, Hurwitz (who changed his name to Brown after the war) kept a record of his experiences. But his "journal" was a sketchpad, and, during his two years in North Africa and Italy, Corporal Hurwitz drew and painted at every opportunity. Hurwitz's pictures a
Camella Teoli Testifies about the 1912 Lawrence Textile Strike
When 30,000 largely immigrant workers walked out of the Lawrence, Massachusetts, textile mills in January 1912, they launched one of the epic confrontations between capital and labor. The strike began in part because of unsafe working conditions in the mills, which were described in graphic detail in the testimony that fourteen-year-old millworker Camella Teoli delivered before a U.S. Congressional hearing in March 1912. Her testimony (a portion of which was included here) about losing her hair
Bitter Harvest: A Puerto Rican Farmer Laments U.S. Control of the Island
In 1898, the United States took control of the Caribbean island of Puerto Rico, intending to use it as a base for strategic naval operations. Most of the island's 900,000 inhabitants welcomed the end of Spanish rule. But they were divided about the U.S. presence. Some hoped links with the United States would lead to increased trade and prosperity; others wanted total independence. Some who initially welcomed the United States quickly became disillusioned. Severo Tulier, a small farmer from Vega
Killing the Messenger: Ida Wells-Barnett Protests a Postmaster's Murder in 1898
The rising tide of lynchings of African Americans across the South launched a national anti-lynching crusade, led by Memphis, Tennessee, newspaper editor Ida Wells-Barnett, an outspoken advocate for the area's African-American citizens. As the leader of the national anti-lynching movement, Wells-Barnett joined a group of Illinois congressmen who visited the White House in March, 1898, to protest the murder of the newly-appointed Lake City, South Carolina Postmaster Baker, who was black. Wells-Ba