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Environmental Health
Examines health issues, scientific understanding of causes and possible future approaches to control the major environmental health problems in industrialized and developing countries.
Author(s): Jonathan M. Links

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Content within individual OCW courses is (c) by the Johns Hopkins University and individual authors unless otherwise noted. JHSPH OpenCourseWare materials are licensed under a Creative Commons License

Testing and Assessing Mathematical Skills by a Script Based System
Especially in the mathematical education there seems to be a need for strict drill and practice exercises. Such training cannot be met by traditional means. Therefore, a computer program is needed which generates parametrisable questions/problems which the students have to answer/solve and which at the same time assesses the answers/solutions of the students. We designed such a system as an interface between the learning platform ILIAS and MATLAB/Maple as the symbolic mathematics engine. We dem
Author(s): Risse Thomas

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Computer-based Metacognitive Training: Improving the Diagnostic Expertise of Novice Graduates
The diagnosis problem-solving task can be complex in many professions for which it is central, for example medical diagnosis, farm-management consultancy, etc. This is because often the expert must solve problems and make decisions in complex situations and while under time pressures. The complex nature of the problem situations and the novices’ lack of advanced metacognitive skills also make it difficult for novices to gain expertise and successfully solve problems in their fields. From the li
Author(s): Mustafa Hiba,Kemp Elizabeth,Kemp Ray

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Informational technologies in resolving the social issues of school communities in Uzbekistan
This article examines the experience of 40 schools of Uzbekistan in usage of Informational technologies in resolving the social issues of their communities. The article describe the projects that were used by schools in the framework of the "Global Connections and Exchange - Uzbekistan" programme during the 2005-2007 academic years, and results of the projects and their positive experience.
Author(s): Shadiev Rustam

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Building Bridges within Learning Communities through Ontologies and "Thematic Objects"
Communication through artefacts, in the sense of objects (co-)constructed by learners, is a well known mechanism in synchronous shared workspace environments. In this article, we explore the potential of extending this principle to heterogeneous, anonymous and asynchronous learner communities by drawing on existing work, e.g. in the areas of "social navigation" and recommender systems. A new ingredient is the description and provision of "thematic objects" embedded in a task/activity context. De
Author(s): Hoppe Ulrich,Pinkwart Niels,Oelinger Maria,Zeini S

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Gemeinsame Wissenskonstruktion in computervermittelter Kommunikation: Welche Kooperationsskripts fö
Goal of this study is the facilitation of participation and knowledge acquisition in cooperative, computer-mediated learning environments. Two cooperative scripts with respect to discourse contents and interaction were developed to pre-structure communication. Both scripts were analyzed with respect to their influence on participation and application-oriented knowledge in computer-mediated learning environments. The factors "content-related cooperative script" and "interaction-related cooperativ
Author(s): Weinberger Armin,Fischer Frank,Mandl Heinz

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Anchored Interactive Learning Environments
Advances in computer technology and multi-media systems have led to widespread interest in computer-based instruction and learning environments. The use of video, animation, graphics, and simulation allow the presentation of material in realistic contexts, thus addressing the problems of inert knowledge while promoting constructive and generative learning. But the true potential and benefits of these systems are yet to be realized. Cognitive studies on learning and transfer suggest that concepts
Author(s): Crews Thaddeus R.,Biswas Gautam,Goldman Susan,Bran

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From mirroring to guiding: A review of the state of art technology for supporting collaborative lear
We review systems that support the management of collaborative interaction, and propose a classification framework built on a simple model of coaching. Our framework distinguishes between mirroring systems, which display basic actions to collaborators, metacognitive tools, which represent the state of interaction via a set of key indicators, and coaching systems, which offer advice based on an interpretation of those indicators. The reviewed systems are further characterized by the type of inter
Author(s): Jermann Patrick,Soller Amy,Muehlenbrock Martin

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Mechanisms of common ground in case-based web-discussions in teacher education
Previous studies suggest that before the participants in Web-based conferencing can reach deeper level interaction and learning, they have to gain an adequate level of common ground in terms of shared mutual understanding, knowledge, beliefs, assumptions, and presuppositions (Clark & Schaefer, 1989; Dillenbourg, 1999). In this paper, the main purpose is to explore how participants establish and maintain common ground in order to reach deeper level interaction in case-based Web-discussions. The s
Author(s): Mäkitalo Kati,Häkkinen Päivi,Leinonen Piritta,J

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Internet Scout Project
"Grid.org is a single destination site for large-scale research projects powered by the United Devices Global MetaProcessor." It harnesses the combined computing power of thousands of computers around the world to process large amounts of data that would otherwise be impossible or very costly to analyze. The Grid.org Web site is an excellent place to start if you want to participate in a distributed computing project, or if you are just interested in learning the basics of the technology. Curren
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Climate, Ecosystems, and Infectious Disease
This online book evaluates the current understanding of the linkages among climate, ecosystems, and infectious disease. It outlines the research needed to improve the understanding of these linkages and examines the potential for using climate forecasts and ecological observations to help predict infectious disease outbreaks. The entire book may be read online in HTML or PDF formats, and hard copies may be ordered from the site.
Author(s): No creator set

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Internet Scout Project
This interim report from the National Research Council's (NRC) Committee on Atlantic Salmon in Maine is a prepublication of the March 2002 report provided by National Academy Press. The once abundant populations of Atlantic Salmon in Maine have declined in recent years, now listed as endangered. The NRC Committee believes that "understanding the genetic makeup of Maine's salmon is important for recovery efforts." This 48-page report includes information on the salmon's biology, evolution, geneti
Author(s): National Research Council. Committee on Atlantic S

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Attributes by kids
This activity requires the student to demonstrate an understanding of classification, patterning, and seriation. The students will complete the project based on personal characteristics.
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Animal environments: Day 2
Students will group animals using common characteristics. Students will develop an understanding of animal adaptations. This lesson is one in a series of lessons: Understanding Animal Adaptation: Day 1; Animal Environments: Day 2; Diamante Poetry Using Environments: Day 3. This is lesson two.
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A Logo-based Task for Arithmetical Activity
Young children attend to answer-getting readings of arithmetical notation. This is evidenced by many children’s exclusive acceptance of a + b = c syntaxes that lend themselves to computational readings (e.g. Behr et al., 1976; Carpenter & Levi, 2000; Knuth, Stephens, McNeil & Alibali 2006). Even those children who do accept a wider variety of syntaxes, such as a + b = b + a and c = a + b , adhere to a computational view involving getting answers to both sides of the equals sign and checking the
Author(s): Jones Ian

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A Road Map to Reading
Students struggle with informational texts and websites. Understanding the structure of these texts is essential to efficient information gathering. The "Road Map" is a pre-reading strategy. Like the road map in your atlas, this mapping activity will help students visualize the layout of the text before they start reading so they will have an idea of where they are going (or where to find the information they are looking for) when they start reading. This lesson will also address active-reading
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A Birthday Basket For Tia
This lesson will provide your students with an opportunity to brainstorm, predict, and check for understanding throughout this wonderful story about a little girl, Cecilia, who is preparing a special birthday gift for her 90 year-old Aunt Tia. Cecilia collects objects that represent her favorite memories with her aunt. Many uses of technology are suggested to integrate math and science with language and reading.
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Finding the ties that bind: Tools in support of a knowledge-building community.
The development OF knowledge-building or leaning communities is a complex, multifacered task By examining users Like David, we came to understand that our goals for a learning community would not be addressed by any "magic bullet" technology solution. Instead, we undertook a lengthy design process that started with self-examination and self-definition and still continues today with community support, assessment, and evaluation. The challenges we faced are similar to those in other community-buil
Author(s): Hoadley Christopher M.,Pea Roy D.

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Myotonic Muscular Dystrophy - Mental Status Exam - Copy Design, Draw Clock Sub-exam - Patient 2
Patient is a 52-year-old African-American male with a known diagnosis of myotonic muscular dystrophy. His neuromuscular symptoms began in the early 1990s with poor dexterity in the hands, dropping objects, and clumsiness with fine motor weakness. He is very slow buttoning clothes, putting on his shoes, brushing his teeth, shaving, and other similar activities. He has trouble in ambulation and falls frequently. He has trouble getting up from a chair or sofa and climbing stairs. He also reports co
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Myotonic Muscular Dystrophy - Motor Exam - Special Tests Sub-exam - Patient 2
Patient is a 52-year-old African-American male with a known diagnosis of myotonic muscular dystrophy. His neuromuscular symptoms began in the early 1990s with poor dexterity in the hands, dropping objects, and clumsiness with fine motor weakness. He is very slow buttoning clothes, putting on his shoes, brushing his teeth, shaving, and other similar activities. He has trouble in ambulation and falls frequently. He has trouble getting up from a chair or sofa and climbing stairs. He also reports co
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