Analysis of three different models used to acquire three e-learning solutions at the same university
The Universtiy of Pretoria has been using an electronic assessment system since 1991 and a learning management system (LMS) since 1998. Both systems required urgent upgrading. In 2003 a further need arose in the Faculty of Health Sciences, for an electronic portfolio system. The Department for Education Innovation has thus implemented three new systems during the past three years: a new electronic assessment system, an upgraded LMS, and an electronic portfolio system. This paper analyzes the adv
Author(s): Scheepers Detken,Jordaan Dolf,Mostert El-Marie

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Designing and application of E-portfolio for teacher training
Portfolio is not just a magic word but it is mandatory for everyone in today's free market. Some companies started their own portfolios for employee assessment. Other has them for optimization purposes or even education. Each of us first encounter portfolio in schools. Big books with grades and other useful data were in them. In the teacher education we also have portfolios and the most important is teacher training portfolio. Based on this portfolios employees decide who to hire or not. With th
Author(s): Krasna Marjan,Bratina Tomaz,Kaucic Branko

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Efficient object based streaming framework for web-based education
An efficient moving object extraction algorithm suitable for real-time content-based multimedia streaming systems is proposed in this paper. A Motion Vector (MV) based object extraction is used to dynamically detect the objects. To utilize the bandwidth efficiently, the important object can be real time detected, encoded, and transmitted with higher quality and higher frame rate than those of background. In order to meet the real-time requirement, no computationally intensive operation is includ
Author(s): Ahmad Ashraf M. A.,El-Seoud Samir A.

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Facilitating collaborative knowledge construction in computer-mediated learning with structuring too
Collaborative knowledge construction in computer-mediated learning environments puts forward difficulties regarding what tasks learners work on and how learners interact with each other. For instance, learners who collaboratively construct knowledge in computer-mediated learning environments sometimes do not participate actively or engage in off-task talk. Computer-mediated learning environments can be endorsed with sociocognitive structuring tools that structure the contents to be learned and s
Author(s): Weinberger Armin,Reiserer Markus,Ertl Bernhard,Fis

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Freshman Organic Chemistry
This is the first semester in a two-semester introductory course focused on current theories of structure and mechanism in organic chemistry, their historical development, and their basis in experimental observation. The course is open to freshmen with excellent preparation in chemistry and physics, and it aims to develop both taste for original science and intellectual skills necessary for creative research.
Author(s): mvd4

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Learning Bridges: a role for mobile technologies in education
A project called MyArtSpace, funded by the UK Department for Culture Media and Sport, is today exploring how children can engage in similar enquiry-led learning supported by mobile technology and how this can link to school and home learning. Using MyArtSpace as an example, we discuss the possibilities for mobile technology to form bridges between formal and informal learning. We also offer guidelines, drawn from our experience with MyArtSpace, for designing such bridges.
Author(s): Vavoula Giasemi,Sharples Mike,Rudman Paul,Lonsdale

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Dialectics for collective activities: an approach to virtual campus design
This contribution is an attempt to systematise our approach to the design of a virtual campus. Activities in the recently started TECFA virtual campus rely on Internet tools, but they concern both distance teaching and presential interactions. Designing learning activities is relatively easy when the learning goal is an activity in itself. In this contribution, we explain how we extend the “learning by doing” approach to the acquisition of declarative knowledge. After fulfilling a pseudo-task,
Author(s): Jermann Patrick,Dillenbourg Pierre,Brouze Jean-Chr

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Antarctic Ice
Glaciers on the Antarctic Peninsula are melting away at an alarming rate. Scientists in this movie discuss just how much ice is melting away and the ramifications of this. Run time 02:32.
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Internet Scout Project
The University of Tennessee at Martin provides hands-on science materials in order to "bring students physically and mentally into touch with the science they are studying." This website offers many lesson plans for grades kindergarten through eighth in various science fields including physics, meteorology, geology, oceanography, and space science. Students can learn about the process of scientific research from observing to analyzing and explaining the data they collected. The website also cove
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Promoting Self-Directed Learning in Simulation Based Discovery Learning Environments Through Intell
Providing learners with computer-generated feedback on their learning process in simulation-based discovery environments cannot be based on a detailed model of the learning process due to the "open" character of discovery learning. This paper describes a method for generating adaptive feedback for discovery learning based on an "opportunistic" learning model that takes the current hypothesis of the learner and the experiments performed to test this hypothesis as input. The method was applied in
Author(s): Veermans Koen,Van Joolingen Wouter,de Jong Ton

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Sequence effects in solving knowledge-rich problems: The ambiguous role of surface similarities
Sequence effects are said to occur whenever the problem solving performance varies as a function of the order in which problems are solved. We present a framework that explain sequence effects as a result of (a) learning during solving a problem and of (b) transferring the learned content on succeeding problems. In two experiments we studied the ambiguous influence of surface similarities among structurally dissimilar knowledge-rich problems on sequence effects. These experiments demonstrate tha
Author(s): Scheiter Katharina,Gerjets Peter

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The defining characteristics of intelligent tutoring systems research: ITSs care, precisely
his paper argues that, despite the changes in philosophies and techniques that have occurred since ITS research began, there are continuous threads running through this research which define its essential and distinctive nature. In particular, ITSs are computer-based learning systems which attempt to adapt to the needs of learners and are therefore the only such systems which attempt to 'care' about learners in that sense. Also, ITS research is the only part of the general IT and education fie
Author(s): Self John

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Towards Web 2.0 Schools: Rethinking the Teachers Professional Development
This paper aims at analyzing the Web 2.0 based distance education in the K-12 schools as an emerging phenomenon that catalyzes a new educational reform all over the world. Some pre-Web 2.0 best practice examples are analyzed in order to draw the main findings in the paper. The teacher’s professional qualification designed to meet the new challenges is considered as a key problem for a successful penetration of this phenomenon in the schools. It is emphasized on the importance of designing a lif
Author(s): Nikolov Roumen

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Internet Scout Project
If you're interested in finding quality science related Web sites, give Toptenlinks.com a try. The science section contains several sponsored sites as well as specific categories such as chemistry, earth science, environment, news, physics, resources, space, biology, education, and geography resources. Once a category is chosen, the links are then listed and can be reorganized by editors' picks, date added, popularity, votes, and site name. If you're so inclined, you can choose to vote on the qu
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Internet Scout Project
Colorado State University's Hands-On Science Outreach Program, Little Shop of Physics, contains several dozen online experiments that can be done at home, in the classroom, or directly on a computer. The Amazing Physics section offers directions on completing the classic imploding pop can experiment and other experiments using common household items. The other two sections, Computer Stuff and Shockwave Stuff, allows users to try interactive activities like the headshrinker experiment. After star
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Learning physics with a computer algebra system
To become proficient problem-solvers, physics students need to form a coherent and flexible understanding of problem situations with which they are confronted. Still, many students have only a limited representation of the problems on which they are working. Therefore, an instructional approach was devised to promote students' understanding of these problems and to support them in forming associations between problem features and solution methods. The approach was based on using the computer alg
Author(s): Savelsbergh Elwin,de Jong Ton,Ferguson-Hessler Mon

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Stagecast Creator™ and Webct™: An integrated use of computer programming and a virtual learning en
This paper reports on an effort to use Stagecast Creator™ as a means for developing modelling skills among undergraduate students taking an introductory course in science that took place in a virtual learning environment (WebCT™). An inquiry-based curriculum was implemented, which guided students working in small groups to collect and study moon observations and construct a series of successive models of the moon phases using Stagecast Creator™. Students’ reflective journals and reports of s
Author(s): Nicolaou Christiana Th.,Constantinou Constantinos

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Meanings for Fraction as Number - Measure by Exploring the Number Line
Construction of meanings for fraction as number-measure is studied during the implementation of exploratory tasks concerning comparison and ordering of fractions as well as operations with fractions. 12-year-old students were working collaboratively in groups of two with software that combines graphical and symbolic notation of fractions represented as points on the number line. Fractions as points and segments, ordering fractions as part of kinesthetic activities and abstracting the scaling of
Author(s): Psycharis Giorgos,Latsi Maria,Kynigos Chronis

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Internet Scout Project
National Institute of Standards and Technology�s (NIST) Physical Reference Data Web site (last mentioned in the August 16, 1996 Scout Report) provides data on physical constants, ionization, x-ray and gamma-ray, radiation dosimetry, nuclear and condensed matter physics, atomic and molecular spectroscopic data, and more. For example, within the searchable physical constants page, visitors can find everything from alpha particle mass to the Wien displacement law constant. Any researcher, prof
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Normalising Geometrical Constructions: A Context for the Generation of Meanings for Ratio and Propor
This paper describes aspects of 13 year-olds’ activity in mathematics as emerged during the implementation of proportional geometric tasks in the classroom. Pupils were working in pairs using a piece of software specially designed for multiple representation (symbolic and graphical) of the variation in parametric procedures with dynamic manipulation of variable. In this paper we discuss children’s use of normalising, an activity in which children ‘correct’ the geometrical figures while devel
Author(s): Psycharis Giorgos,Kynigos Chronis

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