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Sreedharen Sasidharen

Magnet - Wikipedia, the free encyclopedia - 11 views

    • Sreedharen Sasidharen
       
      What is it?
  • A magnet (from Greek μαγνήτις λίθος magnḗtis líthos, "Magnesian stone") is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.
  • Ferromagnetic materials can be divided into magnetically "soft" materials like annealed iron, which can be magnetized but do not tend to stay magnetized, and magnetically "hard" materials, which do. Permanent magnets are made from "hard" ferromagnetic materials such as alnico and ferrite that are subjected to special processing in a powerful magnetic field during manufacture, to align their internal microcrystalline structure, making them very hard to demagnetize. To demagnetize a saturated magnet, a certain magnetic field must be applied, and this threshold depends on coercivity of the respective material. "Hard" materials have high coercivity, whereas "soft" materials have low coercivity.
Maria José Vitorino

To Share or Not to Share: Is That the Question? (EDUCAUSE Review) | EDUCAUSE - 28 views

  • Open digital faculty do more than just share and participate in open resources; they transfer their approaches to the teaching space. Learning becomes a shared activity in which the students also collaborate and participate in shaping the course activities. Student participation takes place in open environments where students might tweet what they learn, share insights on a group blog, create their own website of resources, or participate in a class wiki.
  • The difference is that today's sharing facilitators leverage technology to reach a much wider audience.
  • Although the natural inclination toward sharing cannot be altered, the moral responsibility to share can be influenced by the surrounding culture. The sense of obligation to share or not to share may be similar to the decision to be a vegetarian. For some, it is a lifestyle choice that may form slowly over a long period of time after many conversations with friends and colleagues. For others, the change can be sudden: a paradigm shift caused by participation in an unusual event. If an institution places value on faculty participation in open academic communities and social media activities (e.g., academic blogging), that culture can slowly influence faculty to be more open.
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  • These digital activities should not be the sole measure of tenure, but they should be counted in the tenure formula. The irony today is that if the open activity is analog (e.g., participation on a committee), it likely counts toward tenure, but if the open activity is digital (e.g., writing an academic blog), it probably does not.
  • They will push at (and leak out of) the boundaries of whatever learning management system (or other enterprise systems) the institution wants them to use. This is not because they are uncooperative; it's simply that these enterprise systems tend to be locked down, allowing only employees and students to share within these environments
  • For me, an interesting side effect of sharing on the open web is that I've learned to be more careful about what I say and write.
  • Looking for indicators of open digital faculty is easier than coming up with a strict definition. The presence of several of the following characteristics should be taken as an indication of open digital faculty: Writing a public blog or maintaining a public wiki to share academic interests Freely sharing what might otherwise be guarded intellectual property (e.g., textbooks, research-in-progress, computer programs, course materials, artwork) Participating in a learning community in a social networking platform (e.g., Twitter or LinkedIn discussion groups) Participating in a social network that includes students, both current and past (e.g., Facebook) Encouraging students to participate in class-related projects that employ web-based media (e.g., student blogs, group wikis) Creating or participating in open courses Sharing video or audio content created for a course (e.g., podcasts) Sharing information and ideas from conference talks on the web (e.g., recordings, tweets, presentation links)
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    Open digital faculty do more than just share and participate in open resources; they transfer their approaches to the teaching space. Learning becomes a shared activity in which the students also collaborate and participate in shaping the course activities. Student participation takes place in open environments where students might tweet what they learn, share insights on a group blog, create their own website of resources, or participate in a class wiki.
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    University context for open sources, sharingand digital trends era
Randolph Hollingsworth

The Code of Best Practices in Fair Use for Media Literacy Education - 60 views

  • when they occur within a restricted-access network, do enjoy certain copyright advantages
  • we as a society give limited property rights to creators to encourage them to produce culture; at the same time, we give other creators the chance to use that same copyrighted material, without permission or payment
  • Did the unlicensed use "transform" the material taken from the copyrighted work by using it for a different purpose than that of the original, or did it just repeat the work for the same intent and value as the original? • Was the material taken appropriate in kind and amount, considering the nature of the copyrighted work and of the use?
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  • If the answers to these two questions are "yes," a court is likely to find a use fair
  • whether the use will cause excessive economic harm to the copyright owner
  • the purpose of copyright—to promote the advancement of knowledge through balancing the rights of owners and users.
  • In some cases, this will mean using a clip or excerpt; in other cases, the whole work is needed. Whenever possible, educators should provide proper attribution and model citation practices that are appropriate to the form and context of use.
  • educators should provide reasonable protection against third-party access and downloads
  • educators using concepts and techniques of media literacy should be free to enable learners to incorporate, modify, and re-present existing media objects in their own classroom work
  • Students’ use of copyrighted material should not be a substitute for creative effort
  • Students should be able to understand and demonstrate, in a manner appropriate to their developmental level, how their use of a copyrighted work repurposes or transforms the original.
  • but cannot rely on fair use when their goal is simply to establish a mood or convey an emotional tone, or when they employ popular songs simply to exploit their appeal and popularity
  • material that is incorporated under fair use should be properly attributed wherever possible
  • attribution, in itself, does not convert an infringing use into a fair one.
  • If student work that incorporates, modifies, and re-presents existing media content meets the transformativeness standard, it can be distributed to wide audiences under the doctrine of fair use.
  • When sharing is confined to a delimited network, such uses are more likely to receive special consideration under the fair use doctrine
  • there are no cut-and-dried rules (such as 10 percent of the work being quoted, or 400 words of text, or two bars of music, or 10 seconds of video).
  • Transformativeness, a key value in fair use law, can involve modifying material or putting material in a new context, or both
  • Copyright Act itself makes it clear that educational uses will often be considered fair because they add important pedagogical value to referenced media objects.
  • If educators or learners want to share their work only with a class (or another defined, closed group) they are in a favorable position
  • if work is going to be shared widely, it is good to be able to rely on transformativeness
  • courts have found that asking permission and then being rejected has actually enhanced fair use claims.
  • We don’t know of any lawsuit actually brought by an American media company against an educator over the use of media in the educational process
  • Lack of clarity reduces learning and limits the ability to use digital tools. Some educators close their classroom doors and hide what they fear is infringement; others hyper-comply with imagined rules that are far stricter than the law requires, limiting the effectiveness of their teaching and their students’ learning.
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    Good place to look for guidelines about use of media
Martin Burrett

Qwiki - 141 views

    • Seth Roberts
       
      This site has a 30 second blurb on many topics that we teach from the money supply to Henri Matisse  from the space station to the properties of chemicals.
    • jawatsonii
       
      This is great, going to share with the teachers
    • International School of Central Switzerland
       
      great help - mainstream topics like "volcano" are pretty safe.  But the embed code doesn't work for Wikispaces.
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    Be among the first to join Qwiki. Their "information experience" will be launching soon. Watch the video to learn more about it.
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    You all want to check out this new tool.
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    An amazing technology that aggregates content from across the Internet and presents it in a unified, media-rich fashion.
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    Qwiki allows users to learn more about a variety of topics through multimedia and storytelling. Users can also contribute content to make Qwiki even better.
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    Qwiki instantly makes a 1 minute educational movie on any topic. A must try resource! Works by typing in a search term. Great for visual/auditory learners... and teachers. http://ictmagic.wikispaces.com/ICT+&+Web+Tools
LuAnne Holder

Academic Freedom vs. Mandated Course Content - ProfHacker - The Chronicle of Higher Edu... - 41 views

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    An article in the Chronicle of Higher Ed that discusses the tension between course consistency among multiple sections of the same course and academic freedom for instructors to design their courses as they see fit.
Barbara Moose

http://www.ascd.org/publications/educational_leadership/mar09/vol66/num06/Plagiarism_in... - 0 views

  • Teachers who wish to prevent plagiarism should devote extensive instruction to the component tasks of writing from sources
  • instruction should focus on
  • summarizing sources
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  • Instructional materials like these imply that teachers can stop inappropriate use of sources through three strategies: (1) teaching students from early grades the nuts and bolts of crediting all sources they use; (2) designing plagiarism-proof assignments that spell out how works should be cited and that include personal reflection and alternative final projects like creating a brochure; and (3) communicating to students that you're laying down the law on plagiarism ("I'll be on the lookout for this in your papers, you know").
  • Any worthwhile guide to preventing plagiarism should Discuss intellectual property and what it means to "own" a text. Discuss how to evaluate both online and print-based sources (for example, comparing the quality and reliability of a Web site created by an amateur with the reliability of a peer-reviewed scholarly article). Guide students through the hard work of engaging with and understanding their sources, so students don't conclude that creating a technically perfect bibliography is enough. Acknowledge that teaching students how to write from sources involves more than telling students that copying is a crime and handing them a pile of source citation cards.
  • That pedagogy should both teach source-reading skills and take into consideration our increasingly wired world. And it should communicate that plagiarism is wrong in terms of what society values about schools and learning, not just in terms of arbitrary rules.
  • through formal education, people learn skills they can apply elsewhere—but taking shortcuts lessens such learning.
  • communicate why writing is important. Through writing, people learn, communicate with one another, and discover and establish their own authority and identity. Even students who feel comfortable with collaboration and uneasy with individual authorship need to realize that acknowledged collaboration—such as a coauthored article like this one—is very different from unacknowledged use of another person's work.
Maggie Tsai

Beyond School: From Red Pen to Invisible Ink: Assessing Student Blogs with Diigo Groups - 6 views

  • Somehow find a way to use Diigo to assess student web-log writing without defacing the students' "intellectual property" and turning writing into "schooliness."
  • My students have joined the Group. Now when they go to their web-logs, after logging in to their Diigo account and setting "Show Annotations > Show Group Annotations" on their Diigo toolbar, they will see the highlights of specific passages from their writing that I have left (and I can start students doing this too, it occurs to me in a very attractive flash), and my annotations will pop up on their screen when they hover their mouse over the highlights.Also good, our Diigo Groups Bookmarks page records all highlights and annotations I have made on one page. Students can use that to see all feedback I have given to specific strengths and weaknesses on all students writings.And since they're using anagrams instead of first-name usernames on their blogs, there's less of a chance of any embarrassment resulting from this "public feedback"--with "invisible ink."
Kathy Favazza

video tutor - 2 views

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    collection of math videos & lessons
Jennifer Clark Evans

IP Reports - 50 views

  • copyright
  • also meant to protect the rights of users in order to promote creativity, innovation, and the spread of knowledge
  • not on how much of a piece of copyrighted work that we use, but instead on the ways in which we use it.
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  • fair use requires judgment.
    • Jennifer Clark Evans
       
      which is why it is so crucial to examine in our classrooms-helping our students develop fair judgment when using technoligies.
  • if the user “transforms” the material in some way, repurposing it in a new media composition, for instance, then fair use likely applies.
  • or did it just repeat the work for the same intent and value as the original?
  • Students’ use of copyrighted material should not be a substitute for creative effort.
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    from NCTE's Monthly Intellectual Property Reports, Troy Hicks writes: "In November 2008, educators were introduced to the "Code of Best Practices in Fair Use for Media Literacy Education," and our concept of how to deal with copyright issues in the classroom has, literally, been transformed. As the official policy of NCTE related to fair use in the teaching of English, it is a document worth our attention as students learn to comprehend and compose texts utilizing a variety of forms of media."
Suzanne Nelson

How to Adjust to your Interactive Whiteboard: Understanding Layers « classroo... - 119 views

  • Understanding Layers As you grow accustomed to using your IWB (interactive whiteboard) on a regular basis, you’ll doubtless come up with ideas that you would like to implement. At the same time, you may not feel ready to experiment with actions, sounds, and other properties. Fortunately, you can do a lot with your IWB if you understand layers and use them wisely. Using layers on your IWB is easy and a great step forward in getting your kids to interact with your board.
Jackie Rippy

Soviet Psychology: Psychology and Marxism Internet Archive - 14 views

    • Jackie Rippy
       
      This points to stark differences - what about subtle differences between cultures. Do our symbols affect brain development - do our tools affect brain development?
  • Other Gestalt psychologists emphasized the common properties of mind in all cultures
  • shifts
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  • in the basic forms, as well as in the content of people's thinking.
  • The early 1930
  • had experienced the conditions necessary to alter radically the content and form of their thought.
  • we expected that they would display a predominance of those forms of thought that come from activity that is guided by the physical features of familiar objects.
  • Therefore we began, as most field work with people does, by emphasizing contact with the people who would serve as our subjects. We tried to establish friendly relations so that experimental sessions seemed natural and non-threatening. We were particularly careful not to conduct hasty or unprepared presentations of the test materials.
  • As a rule, our experimental sessions began with long conversations which were sometimes repeated with the subjects in the relaxed atmosphere of a tea house, where the villagers spent most of their free time, or in camps in the field and in mountain pastures around the evening campfire. These talks were frequently held in groups. Even when the interviews were held with one person, the experimenter and other subjects made up a group of two or three who listened attentively to the person being interviewed and who sometimes offered remarks or comments on what he said. The talk often took the form of a free-flowing exchange of opinion between participants, and a particular problem might be solved simultaneously by two or three subjects, each proposing an answer. Only gradually did the experimenters introduce the prepared tasks, which resembled the “riddles” familiar to the population and therefore seemed like a natural extension of the conversation.
  • He characterized primitive thinking as “prelogical” and “loosely organized.” Primitive people were said to be indifferent to logical contradiction and dominated by the idea that mystical forces control natural phenomena
  • We conceived the idea of carrying out the first far-reaching study of intellectual functions among adults from a non-technological non-literate, traditional society
  • hamlets
  • nomad
  • 1. Women living in remote villages who were illiterate and who were not involved in any modern social activities. There were still a considerable number of such women at the time our study was made. Their interviews were conducted by women, since they alone had the right to enter the women's quarters. 2. Peasants living in remote villages who were in no way involved with socialized labor and who continued to maintain an individualistic economy. These peasants were not literate. 3. Women who attended short-term courses in the teaching of kindergarteners. As a rule, they had no formal schooling and almost no training in literacy. 4. Active kolhoz (collective farm) workers and young people who had taken short courses. They were involved as chairmen running collective farms, as holders of other offices on the, collective farm, or as brigade leaders. They had considerable experience in planning production, distributing labor, and taking stock of output. By dealing with other collective farm members, they had acquired a much broader outlook than isolated peasants. But they had attended school only briefly, and many were still barely literate. 5. Women students admitted to teachers school after two or three years of study. Their educational qualifications, however, were still fairly low.
  • Short-term psychological experiments would have been highly problematic under the field conditions we expected to encounter
psaunders

www.AllAboutGermany.NET | Moving to Germany | Visiting Germany | Living and W... - 19 views

    • psaunders
       
      Wouldn't it be better to start with this anecdote. It's got real impact. As it is, it's buried too far down and there's too much tame scene setting to start with. 
  • There’s a sort of proletarian parochialism to be found in Berlin
  • the parochial attitude of many western Berliners towards eastern Berlin
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  • I’ve been to parties and social gatherings there many times where one set of people stay at one end of the room and another -- the newcomers -- at the other end.
  • Gentrification in Berlin has now started to make itself felt in staunchly working class and immigrant Neukoelln
  • A video has recently appeared on YouTube about the phenomena of gentrification in Neukoelln
  • t that time I also had the pleasure of viewing a tiny, squalid, almost windowless one roomed apartment that had just become free for letting in Neukoelln. It had until very recently been previously occupied by a mentally disturbed alcoholic whom the police had found dead drunk on the street a few blocks further down. When the police entered his apartment they found a large collection of knives, hammers, baseball bats, knuckle-dusters, axes and other weapons scattered around the flat. When I visited the now empty apartment, these items were all still laid out on the kitchen table awaiting their removal by the police. Apparently the apartment had also by necessity just been fumigated. Needless to say, I declined to take up a rental contract with the agent for that particular property.
  • can understand some of the points he makes about the superficiality of the hipsters with their “Starbucks standards and expectations” and how they just want to party for a few years before moving on again somewhere else. But I don’t entirely agree with his point of view. Berlin needs newcomers, it needs new creativity and new enterprise. It can’t afford to stagnate and just remain a working class city in a city with little for the working class to do anymore. I find this hostility towards “Aerzte, Architekten und Anwaelte” rather parochial and narrow-minded. Why be against these people? Because they are doing well for themselves? What are they supposed to do? Sweep the streets or draw Stuetze (unemployment benefit)?
  • funny rant, critical of the newcomers and their standardized Latte Macchiato attitudes.  The video was also featured on Dutch TV recently.
Jac Londe

Scientists make quantum breakthrough - 25 views

  • Scientists have demonstrated for the first time that atoms can be guided in a laser beam and possess the same properties as light guided in an optical communications fiber.
  • Abstract Speckle patterns produced by multiple independent light sources are a manifestation of the coherence of the light field. Second-order correlations exhibited in phenomena such as photon bunching, termed the Hanbury Brown–Twiss effect, are a measure of quantum coherence. Here we observe for the first time atomic speckle produced by atoms transmitted through an optical waveguide, and link this to second-order correlations of the atomic arrival times. We show that multimode matter-wave guiding, which is directly analogous to multimode light guiding in optical fibres, produces a speckled transverse intensity pattern and atom bunching, whereas single-mode guiding of atoms that are output-coupled from a Bose–Einstein condensate yields a smooth intensity profile and a second-order correlation value of unity. Both first- and second-order coherence are important for applications requiring a fully coherent atomic source, such as squeezed-atom interferometry.
  • Australian National University
Melissa Wert

Benoit Mandelbrot - Telegraph - 17 views

  • Benoit Mandelbrot, who died on October 14 aged 85, was largely responsible for developing the discipline of fractal geometry – the study of rough or fragmented geometric shapes or processes that have similar properties at all levels of magnification or across all times.
Bill Noomah

Using Google Analytics and Student Created Content - 70 views

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    A fifth grade project using student drawings and Google Analytics as a vehicle to learn about intellectual property, fair use, and privacy.
anorred79

Exploring Planets in the Classroom: Hands-on science activities - 46 views

    • anorred79
       
      Plantary properties has a great lesson for your weight and age on other planets.
  • More than 25 hands-on science activities are provided in classroom-ready pages for both teachers and students for exploring Earth, the planets, geology, and space sciences.
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    Great space activities for 6th grade science
dawnprovost

How building design changed after 9/11 - 6 views

  • When exposed to the high temperatures created by burning airplane fuel, steel columns in both towers lost strength, putting too much load on other structural supports.
    • dawnprovost
       
      Proof for claim the the building's structure could not actually maintain its integrity.
  • When exposed to the high temperatures created by burning airplane fuel, steel columns in both towers lost strength, putting too much load on other structural supports.
  • Center towers lost strength rapidly when the fire reached 400 degrees Fahrenheit. Concrete heated to that temperature, though, doesn’t undergo significant physical or chemical changes; it maintains most of its mechanical properties. In other words, concrete is virtually fireproof.
    • dawnprovost
       
      Supports other article that explains the difference between temperature and heat.
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    MLA Citation: In-text Citation: Summary: Evaluation: Reflection:
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