Beyond logging of fingertip actions: analysis of collaborative learning using multiple sources of da
In this article we discuss key requirements for collecting behavioural data concerning technology-supported collaborative learning activities. It is argued that the common practice of analysis of computer generated logfiles of user interactions with software tools is not enough for building a thorough view of the activity. Instead more contextual information is needed to be captured in multiple media like video, audio files, snapshots, etc, in order to re-construct the learning process. A softwa
"A Damaging Impression of Hollywood Has Spread": Movie "Czar" Eric Johnston Testifies before HUAC
The House Committee on Un-American Activities (HUAC) held hearings in October 1947 on Communist activity in Hollywood. In the following testimony, Eric Johnston, a successful businessman who in 1945 succeeded Will H. Hays as President of the Motion Picture Association of America--the industry's institution for self-regulation--defended Hollywood against HUAC's attacks and complained vigorously that the "atmosphere of fear" resulting from the investigation precluded the production of "good and ho
Students are introduced to some essential meteorology concepts so they more fully understand the impact of meteorological activity on air pollution control and prevention. First, they develop an understanding of the magnitude and importance of air pressure. Next, they build a simple aneroid barometer to understand how air pressure information is related to weather prediction. Then, students explore the concept of relative humidity and its connection to weather prediction. Finally, students learn
New e-learning services based on mobile and ubiquitous computing: Ubi-learn project
Ubiquitous and mobile learning concerns building applications in highly dynamic and heterogeneous environments to bring computation into the real, physical world. This paper presents UbiLearn a distributed Learning platform with Nomads Objects and new e-learning services based on.
Fostering computer supported collaborative learning with cooperation scripts and scaffolds
The study investigates collaborative learning of small groups via text-based computer-mediated communication. We analyzed how two approaches to pre-structure communication influence participation, individual knowledge transfer, the convergence of participation and the convergence of knowledge among peers. We varied the factor scripted cooperation and the factor scaffolding in a 2x2-design. 105 university students of Educational Psychology participated. Results show that scripted cooperation was
LR - Create Stunning Images
Learn the best way to make global and local color and tonal corrections to your images and take advantage of new world-class noise reduction capabilities.
A plain language guide to copyright in the 21st century By Julien Hofman Computers and the Internet have transformed the way we produce and distribute information and entertainment. And copyright is struggling to keep pace with these changes. The authors of all kinds of works, from the humble email to blockbuster films, rely on copyright to protect what they produce. But authors and those who use their work are often unclear about what copyright allows and what it prohibits. This book was wri
Earth Explorers Series
Who Are NASA's Earth Explorers? The elementary school student questioning if El Nino occurs anywhere besides the Pacific Ocean... The researcher investigating connections between Arctic ozone depletion and global climate change... The consumer comparing hydrocarbon versus hydrogen-powered cars... And the business person projecting future needs for harvest, delivery, and storage of crops... All of these people are Earth Explorers -- they are all connected by their curiosity about Earth system pro
3... 2... 1... Liftoff! Educator Guide
Introduces children to the International Space Station (ISS), the most complex international scientific endeavor in history. Activities focus on the purpose and construction of the ISS, the history of rockets, and the role of rockets in space station assembly. Activities emphasize hands-on involvement, data collection, observation, exploration, prediction, interpretation, problem solving, and language skills.
Middle School Portal: Math and Science Pathways (MSP2)
With this online activity, students explore the classic mathematics map-coloring question known as the four-color problem. Students must determine the minimum number of colors needed to color a map so that entities sharing a border have different colors. Initially, students investigate the minimum number of colors necessary to color a map of states west of the Mississippi River. The activity's Getting Started section suggests coloring the states in a specific order. The Solution page uses odd an
Middle School Portal: Math and Science Pathways (MSP2)
This online activity offers students a chance to apply the concept of symmetry to a real archaeology question. The activity calls for a hands-on solution to the initial challenge of determining the size of a plate from only a fragment or shard. Related math questions offer the opportunity to think about lines of symmetry for a variety of shapes. The activity is one of 80 mathematical challenges featured on the Figure This! web site, where real-world uses of mathematics are emphasized. The activi
Wheel of fortune : who would you guess?
This online activity is based upon the television game show in which contestants try to guess a word or phrase. Students are given a partially completed word puzzle and asked to choose a vowel and three additional consonants. The activity is part of the Figure This! collection of 80 challenges that demonstrate real-world uses of mathematics. This challenge notes the importance of language structure and letter frequency in voice recognition software and cryptography. Students are encouraged to ap
How to Think Like a Computer Scientist: Learning with Python
Python is a fun and extremely easy-to-use programming language that has steadily gained in popularity over the last few years. Developed over ten years ago by Guido van Rossum, Python's simple syntax and overall feel is largely derived from ABC, a teaching language that was developed in the 1980's. However, Python was also created to solve real problems and it borrows a wide variety of features from programming languages such as C++, Java, Modula-3, and Scheme. Because of this, one of Python's m
History and Comparing Programming Languages
This site contains files on the history of computer programming language statements. The files compare programming language statements in several different languages tracing the statement from early languages to present languages.
Cabrillo National Monument: Cabrillo as Classroom
This site describes several classroom resources about the monument near San Diego, CA. Featured is the Cabrillo Tidepool Study, a 4-week on-line unit designed for students at the 5th grade level. It covers many life science topics including ecosystems, adaptation, life-cycle, food web, and conservation, and it integrates language arts and math activities.
Artificial Intelligence: Natural Language Processing
This course is designed to introduce students to the fundamental concepts and ideas in natural language processing (NLP), and to get them up to speed with current research in the area. It develops an in-depth understanding of both the algorithms available for the processing of linguistic information and the underlying computational properties of natural languages. Wordlevel, syntactic, and semantic processing from both a linguistic and an algorithmic perspective are considered. The focus is on m
Carbonated Grape Salad with Goat Cheese
What else can you do with a fresh table grape besides eat it? Chefs active in the realm of molecular gastronomy are manipulating ingredients in ways never imagined. Chef Scott Samuel of the Culinary Institute of America was asked to develop some contemporary recipes with California Table Grapes. He challenged himself to probe this frontier. "The idea came from one of my colleagues," says Samuel, "You put the grapes in a whipping-cream canister with wine and then charge it. You have to prick the
Buckaroos in Paradise: Ranching Culture in Northern Nevada, 1945-1982
The Buckaroos in Paradise Collection presents documentation of a Nevada cattle-ranching community, with a focus on the family-run Ninety-Six Ranch. The documentation was largely the work of the Paradise Valley Folklife Project (1978-1982), a research initiative conducted by the American Folklife Center at the Library of Congress. This collection presents 41 motion pictures and 28 sound recordings that tell the story of life and work on the Ninety-Six Ranch and of its cowboys, known in the region
German verbs: regular and irregular
Angelehnt an den Deutschunterricht in der Humboldtschule in Costa Rica. Übe regelmäßige und unregelmäßige Verben gemäß den wichtigsten Ablautreihen konjugieren. The module contains the following levels:* Regular and Irregular German Verbs: do you know them all?* German tenses (1) regular Verbs* German tenses (2) irregular verbs* German tenses (3) irregular Verbs (ei-i-i)* German tenses (3) irregular Verbs (i-a-u)* German tenses (5) irregular Verbs (ei-ie-ie)* German tenses (6) irregular V
German Spelling Grade VI The module contains the following levels:* Test yourself - Wo sind meine Schwächen?* Words with e, ai or ie / Wörter mit (ai
Angelehnt an den Deutschunterricht in der Humboldtschule in Costa Rica (6. Klasse). Rechtschreibübungen anhand einfacher Satzbeispiele und gemäß häufiger Fehlergruppen (Doppellaute, s/ss/ß, z/tz/tzt und k/ck/chs/cks, Umlaute). Correct common German spelling errors by practicing with a variety of exercises grouped by error groups using easy to understand sentences.
The module contains the following levels:* Test yourself - Wo sind meine Schwächen?* Words with e, ai or ie / Wörter mit (ai