Lutilisation dun arbre des tâches pour concevoir et analyser des situations dapprentissage :
Afin de prendre en compte les difficultés que les élèves ont pour donner du sens aux activités expérimentales, ce qui leur fait perdre de vue lobjectif initial du T.P. et les connaissances visées, nous proposons de leur faire concevoir le protocole des expériences. À travers trois exemples de situations de T.P. mises au point et expérimentées dans des classes de Terminale S, nous montrons comment la structuration du protocole expérimental dans un arbre de tâche, permet d'analyser e
Language-independent conceptual "bugs" in novice programming
This article argues for the existence of persistent conceptual "bugs" in how novices program and understand programs. These bugs are not specific to a given programming language, but appear to be language-independent. Furthermore, such bugs occur for novices from primary school to college age. Three different classes of bugs-parallelism, intentionality, and egocentrism - are identified, and exemplified through student errors. It is suggested that these classes of conceptual bugs are rooted in a
Human and Artificial Agent's Conversations on the GRID
This position paper supports a conversational and social view of future e-Learning activities on the GRID. This evolution of the Web seems to be nicely synergic with current developments in Agents and Agent Communication Languages. Exactly what e-Learning needs in order to go over from a multimedia-based, passive or at best retroactive view of e-Learning resources to a proactive, peer-to-peer approach of social conversations among human and (progressively) artificial autonomous Agents.
Scénariser l'enseignement et l'apprentissage : une nouvelle compétence pour le praticien?
27 research papers about using scenarios for computer based learning environments,Workshop proceeding
CoP-independent meta-ontologies and support ontologies
This deliverable offers a theoretical background on which the KM services will be based. It deals with the meta-models necessary for the Knowledge Management services and concerns the development and the choices of CoP-independent ontologies. The existing models for each main concept determined as important in a CoP are presented, the discussions on these models summarized and finally the proposal of the model adopted for Palette is presented.,PALETTE deliverable - report number D.KNO.01 - 83 pa
A news camera captured this video excerpt of a 1965 voting rights demonstration, from People's Century: "Skin Deep".
The Grand Canyon: How It Formed
This video segment adapted from NOVA uses animation to present the theory of how the Grand Canyon was formed and features rare footage of a phenomenon known as debris flow.
Im internet sprachen lernen
This learning object is in German, and considers how the internet can be used to practise speaking in German.
Race and Racism at the 1886 Knights of Labor Convention
The annual convention of the Knights of Labor that convened in Richmond, Virginia, on October 4, 1886, took place in a region riven by racial and political conflict. The convention and the Knights, the most powerful labor organization in late 19th century America, were quickly plunged into conflict over the organization's attitudes toward the question of social equality between the races. A major controversy erupted over whether or not Frank J. Ferrell, a black representative of the Knights' pow
Identifying features of lectures: introductions
Extracts from the introductions of three lectures.
"It Set the Indian Aside as a Problem"A Sioux Attorney Criticizes the Indian Reorganization Act
The Indian Reorganization Act of 1934, which became known as the Indian New Deal, dramatically changed the federal government's Indian policy. Although John Collier, commissioner of Indian affairs who was responsible for the new policy, may have viewed Indians with great sympathy, not all Native Americans viewed the Indian New Deal in equally positive terms. In this 1968 interview with historian Joseph H. Cash, attorney Ramon Roubideaux, a Brule Sioux, denounced the Indian Reorganization Act as
"We Did Not Have Enough Money": George Miller's Testimony about 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, Clairton worker George Miller called the 1919 strike a quest for "a standard American living"--a phrase that was particularly meaningful to the Serbian-born Miller.
Using Popcorn to Simulate Radioactive Decay
In this activity popping popcorn is used to illustrate the spontaneity, unpredictability, and irreversible change associated with radioactive decay. This site provides notes and tips, a list of teaching materials and methods, and links to related online resources.
Small Jubilee, A
'A Small Jubilee' presents images of student uprisings, amusement parks, and street scenes. The images are processed and animated and alternate between black and white and color saturated. Dramatic text with religious overtones by Shalom Gorewitz and Beo Morales is spoken as a voiceover and examines religious symbolism.
This site features GIFs, Java applets, MPEGs, and Flash animations that illustrate various forms of precipitation and moisture. They include an animation of air parcels and water vapor colliding with condensation nuclei which results in condensation and cloud formation, an interactive precipitation animation applet that allows the user to set wet and dry bulb temperatures to see if snow, ice, freezing rain, sleet, super cooled droplets, raindrops, or drizzle will fall, an animation of lake effec
What Do You See?
This is a lesson in which students analyze a single Civil War photograph and then find and analyze related images. The aim is to help students see relationships between the Civil War and American industrialization.
Traveling Culture: Circuit Chautauqua in the Twentieth Century
This digital collection presents 7,949 publicity brochures, promotional advertisements and talent circulars for some 4,546 performers who were part of the Chautauqua circuit. These talent brochures are drawn from the Records of the Redpath Lyceum Bureau, held by the University of Iowa Libraries. One of the largest booking agencies for the Chautauqua performers, the Redpath bureau managed a vast talent pool. Performers and lecturers were familiar names as popular entertainers or well known in the
Poet At Work: Recovered Notebooks from Walt Whitman
This collection offers access to the four Walt Whitman Notebooks and a cardboard butterfly that disappeared from the Library of Congress in 1942. They were returned on February 24, 1995. The Thomas B. Harned collection of the Walt Whitman papers spans the period 1842 to 1937, with most of the items dated from 1855 to 1892. It was donated in 1918. The collection consists of correspondence, poetry and prose manuscripts, notes and notebooks, proofs and offprints, printed matter, and miscellaneous
Southern Mosaic: The John and Ruby Lomax 1939 Southern States Recording Trip
This is a field collection of 700 sound recordings, field notes, dust jackets, and other manuscripts documenting a three-month, 6,502-mile trip through the southern U.S. The recordings include ballads, blues, children's songs, cowboy songs, fiddle tunes, field hollers, lullabies, play-party songs, religious dramas, spirituals, and work songs.
Woody Guthrie and the Archive of American Folk Song: Correspondence, 1940-1950
This site highlights letters Guthrie wrote in the early 1940s after moving to New York City, where he pursued broadcasting and recording careers, met artists and social activists, and gained a reputation as a songwriter and performer. The site includes a biographical essay, a timeline of Guthrie's life, and an encoded finding aid of Guthrie materials at the Library of Congress.