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Betty Powell

Steps of the Scientific Method - 1 views

www.sciencebuddies.org/...roject_scientific_method.shtml

Scientific Method experiments scientific method science scientific_method

shared by Betty Powell on 09 Sep 09 - Cached
  • Betty Powell on 09 Sep 09
     
    An introduction to the steps of the scientific method
Betty Powell

MythBusters: Scientific Inquiry - DiscoverySchool.com - 1 views

school.discoveryeducation.com/...myth-busters

myth science Scientific Method

shared by Betty Powell on 09 Sep 09 - Cached
  • Betty Powell on 09 Sep 09
     
    Learn from the MythBusters, who use the scientific method to prove or disprove common beliefs about physical science.
A Gardner

How science works: The flowchart - 194 views

undsci.berkeley.edu/...scienceflowchart

science scientific method flowchart inquiry process nature of science

shared by A Gardner on 23 May 11 - Cached
    • A Gardner
      A Gardner on 27 May 11
       
      Reminder that science is not linear in practice nor in gathering information. Work your way through the site to the lab/activities.
    • Brian Hamilton
      Brian Hamilton on 21 Jun 11
       
      Excellent visual.
  • process of scientific inquiry
  • Most ideas take a circuitous path through the process
  • Holly Barlaam on 23 May 11
     
    A flowchart depicting the process of scientific inquiry (nature of science). Can trace the development of different ideas. Gives a visual representation that the "scientific method" is not a rigid, sequential process that goes automatically from one step to the next.
Jay Swan

100 Coolest Science Experiments on YouTube - 105 views

www.x-raytechnicianschools.org/science-experiments-on-youtube

science youtube experiments biology physics

shared by Jay Swan on 09 Feb 10 - Cached
  • Jay Swan on 09 Feb 10
     
    From site: Although YouTube has something of a reputation as a repository for the inane mental diarrhea of stunted man-children injuring each other for cheap laughs or shrill teenage drama queens shrieking like harpies over the latest bland, interchangeable lump passing as the epitome of masculine beauty, many others thankfully take advantage of its services as a portal to share their knowledge and educate viewers. While few of the scientific offerings formally follow the scientific method or test an explicitly stated hypothesis, even those videos veering more towards demonstrating various principles, theories, and laws still offer visitors a chance to learn something about how the world around them operates.
Derrick C

Science Experiments Elementary - 61 views

www.easy-kids-science-experiments.com/ce-experiments-elementary.html

science experiment elementary experiments

shared by Derrick C on 04 Nov 10 - Cached
  • Cooling Soda Cans
    • Derrick C
      Derrick C on 07 Nov 10
       
      science method chemistry hypothesis predictions observations data collection recording
  • Flowers In Water
    • Derrick C
      Derrick C on 07 Nov 10
       
      biology all scientific method steps application focus?
  • Frozen Candles
    • Derrick C
      Derrick C on 07 Nov 10
       
      highlight: hypothesis, prediction, observations, data collection, data recording
  • ...3 more annotations...
  • Make a Battery From Fruit
    • Derrick C
      Derrick C on 07 Nov 10
       
      chemistry scientific method observation prediction hypothesis
  • Moth Balls Dance
    • Derrick C
      Derrick C on 07 Nov 10
       
      chemistry scientific method observations hypothesis application
  • Sense of Smell
    • Derrick C
      Derrick C on 08 Nov 10
       
      making observations asking questions
Blue Lan

Anki - friendly, intelligent flashcards - 92 views

ankisrs.net

anki

shared by Blue Lan on 02 Jul 12 - Cached
  • Anki Anki is a program which makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn. Anyone who needs to remember things in their daily life can benefit from Anki. Since it is content-agnostic and supports images, audio, videos and scientific markup (via LaTeX), the possibilities are endless. For example: learning a language studying for medical and law exams memorizing people's names and faces brushing up on geography
    • Blue Lan
      Blue Lan on 02 Jul 12
       
      anki is a kind of flash card
  • Blue Lan on 02 Jul 12
     
    Anki is a program which makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn. Anyone who needs to remember things in their daily life can benefit from Anki. Since it is content-agnostic and supports images, audio, videos and scientific markup (via LaTeX), the possibilities are endless. For example: learning a language studying for medical and law exams memorizing people's names and faces brushing up on geography mastering long poems even practicing guitar chords!
M Holthouse

How science works - 107 views

undsci.berkeley.edu/...howscienceworks_01

science scientific method resources

shared by M Holthouse on 22 Aug 11 - Cached
  • M Holthouse on 22 Aug 11
     
    Why the "scientific method" as taught K12 is not realistic, and not as much fun as the real thing - and how to teach that instead.  Good activities.
Glenda Baker

The End of Theory: The Data Deluge Makes the Scientific Method Obsolete - 137 views

www.wired.com/...pb_theory

Science Data statistics google technology

shared by Glenda Baker on 27 Sep 11 - Cached
  • sociology. Forget taxonomy, ontology, and psychology. Who knows why people do what they do? The point is they do it, and we can track and measure it with unprecedented fidelity. With enough data, the numbers speak for themselves.
  • The big target here isn't advertising, though. It's science. The scientific method is built around testable hypotheses. These models, for the most part, are systems visualized in the minds of scientists. The models are then tested, and experiments confirm or falsify theoretical models of how the world works.
  • But faced with massive data, this approach to science — hypothesize, model, test — is becoming obsolete.
  • ...3 more annotations...
  • Petabytes allow us to say: "Correlation is enough."
  • There's no reason to cling to our old ways. It's time to ask: What can science learn from Google?
  • It's time to ask: What can science learn from Google?
  • Glenda Baker on 27 Sep 11
     
    article discussing whether math models can replace other tools for understanding the world.
  • Wax Brackett on 03 Oct 11
     
    I dissagree. Maybe for someone who can cope with the massive scale Google works with but for the average student bah humbug. As far as the students I see the scientific method still needs to be taught as they need a lot of help learning how to gather reliable information from the web. As far as google is concerned the students simplistic, unevaluated searches are as valuable as someone who actually understands what they are looking for or maybe more valuable because more students are doing almost thoughtless searches. The real need is a good course, hopefully online, to teach students how to do a reasoned search. agoogleaday is a start.
Kenuvis Romero

The Art of Memory - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...The_Art_of_Memory

shared by Kenuvis Romero on 23 Jun 13 - No Cached
  • The Art of Memory From Wikipedia, the free encyclopedia Jump to: navigation, search For the general topic known as "Ars memoriae" or "the Art of Memory", see Art of memory. The Art of Memory Author(s) Frances A. Yates Country United Kingdom Language English Publisher Routledge and Kegan Paul Publication date 1966 Media type Print (book) Pages 400 ISBN 0-226-95001-8 OCLC Number 42905743  Preceded by Giordano Bruno and the Hermetic Tradition The Art of Memory is a 1966 non-fiction book by British historian Frances A. Yates. The book follows the history of mnemonic systems from the classical period of Simonides of Ceos in Ancient Greece to the Renaissance era of Giordano Bruno, ending with Gottfried Leibniz and the early emergence of the scientific method in the 17th century. See also [edit] Method of loci John Crowley Art of Memory
Roland O'Daniel

Reading is a Problem-Solving Process. Why Not Try the Thumb Method? « Co-Crea... - 60 views

ctlonline.org/blog

literacy science reading comprehension

shared by Roland O'Daniel on 06 Aug 10 - Cached
  • Roland O'Daniel on 06 Aug 10
     
    Reading is a Problem-Solving Process. Why Not Try the Thumb Method? New blog post by Denise Finley about supporting students while they learn to read scientifically!
Mr. Eason

Educational Leadership:Teaching for the 21st Century:21st Century Skills: The Challenge... - 119 views

www.ascd.org/...lls@-The-Challenges-Ahead.aspx

21stcenturyskills teaching

shared by Mr. Eason on 11 May 12 - Cached
  • the skills students need in the 21st century are not new.
  • Critical thinking and problem solving, for example, have been components of human progress throughout history
  • What's actually new is the extent to which changes in our economy and the world mean that collective and individual success depends on having such skills
  • ...27 more annotations...
  • Many reform efforts, from reducing class size to improving reading instruction, have devolved into fads or been implemented with weak fidelity to their core intent. The 21st century skills movement faces the same risk.
  • some of the rhetoric we have heard surrounding this movement suggests that with so much new knowledge being created, content no longer matters; that ways of knowing information are now much more important than information itself. Such notions contradict what we know about teaching and learning and raise concerns that the 21st century skills movement will end up being a weak intervention for the very students—low-income students and students of color—who most need powerful schools as a matter of social equity.
  • First, educators and policymakers must ensure that the instructional program is complete and that content is not shortchanged for an ephemeral pursuit of skills
  • Second, states, school districts, and schools need to revamp how they think about human capital in education—in particular how teachers are trained
  • inally, we need new assessments that can accurately measure richer learning and more complex tasks
  • Skills and knowledge are not separate, however, but intertwined.
  • In some cases, knowledge helps us recognize the underlying structure of a problem.
  • At other times, we know that we have a particular thinking skill, but domain knowledge is necessary if we are to use it.
  • if skills are independent of content, we could reasonably conclude that we can develop these skills through the use of any content. For example, if students can learn how to think critically about science in the context of any scientific material, a teacher should select content that will engage students (for instance, the chemistry of candy), even if that content is not central to the field. But all content is not equally important to mathematics, or to science, or to literature. To think critically, students need the knowledge that is central to the domain.
  • The importance of content in the development of thinking creates several challenges
  • first is the temptation to emphasize advanced, conceptual thinking too early in training
  • Another curricular challenge is that we don't yet know how to teach self-direction, collaboration, creativity, and innovation the way we know how to teach long division.
  • But experience is not the same thing as practice. Experience means only that you use a skill; practice means that you try to improve by noticing what you are doing wrong and formulating strategies to do better. Practice also requires feedback, usually from someone more skilled than you are.
  • We must plan to teach skills in the context of particular content knowledge and to treat both as equally important.
  • education leaders must be realistic about which skills are teachable. If we deem that such skills as collaboration and self-direction are essential, we should launch a concerted effort to study how they can be taught effectively rather than blithely assume that mandating their teaching will result in students learning them.
  • teachers don't use them.
  • Even when class sizes are reduced, teachers do not change their teaching strategies or use these student-centered method
  • these methods pose classroom management problems for teachers.
  • These methods also demand that teachers be knowledgeable about a broad range of topics and are prepared to make in-the-moment decisions as the lesson plan progresses.
  • constant juggling act
  • greater collaboration among teachers.
  • But where will schools find the release time for such collaboration?
  • professional development is a massive undertaking.
  • Unfortunately, there is a widespread belief that teachers already know how to do this if only we could unleash them from today's stifling standards and accountability metrics. This notion romanticizes student-centered methods, underestimates the challenge of implementing such methods, and ignores the lack of capacity in the field today.
  • The first challenge is the cost.
  • measures that encourage greater creativity, show how students arrived at answers, and even allow for collaboration.
  • When students first encounter new ideas, their knowledge is shallow and their understanding is bound to specific examples. They need exposure to varied examples before their understanding of a concept becomes more abstract and they can successfully apply that understanding to novel situations.
Rizal Jailani

Problems with 'the scientific method' | Science News for Kids - 4 views

www.sciencenewsforkids.org/...ems-with-the-scientific-method

shared by Rizal Jailani on 23 Jul 12 - No Cached
    • Rizal Jailani
      Rizal Jailani on 23 Jul 12
       
      interesting insight about how to 'teach' pupils about carrying out their own experiments
Martin Burrett

Scientific Method iMat by @primary_sci - 38 views

ukedchat.com/...t-by-primary_sci-ukedresources

science investigations experiments resources

shared by Martin Burrett on 14 Feb 17 - No Cached
  • Martin Burrett on 14 Feb 17
     
    "iMat (Independent Mat) for encouraging independence when planning an investigation."
Maureen Greenbaum

The Future of College? - The Atlantic - 29 views

www.theatlantic.com/...375071

future college education pedagogy

shared by Maureen Greenbaum on 16 Aug 14 - No Cached
  • proprietary online platform developed to apply pedagogical practices that have been studied and vetted by one of the world’s foremost psychologists, a former Harvard dean named Stephen M. Kosslyn, who joined Minerva in 2012.
  • inductive reasoning
  • Minerva class extended no refuge for the timid, nor privilege for the garrulous. Within seconds, every student had to provide an answer, and Bonabeau displayed our choices so that we could be called upon to defend them.
  • ...45 more annotations...
  • subjecting us to pop quizzes, cold calls, and pedagogical tactics that during an in-the-flesh seminar would have taken precious minutes of class time to arrange.
  • felt decidedly unlike a normal classroom. For one thing, it was exhausting: a continuous period of forced engagement, with no relief in the form of time when my attention could flag
  • One educational psychologist, Ludy Benjamin, likens lectures to Velveeta cheese—something lots of people consume but no one considers either delicious or nourishing.)
  • because I had to answer a quiz question or articulate a position. I was forced, in effect, to learn
  • adically remake one of the most sclerotic sectors of the U.S. economy, one so shielded from the need for improvement that its biggest innovation in the past 30 years has been to double its costs and hire more administrators at higher salaries.
  • past half millennium, the technology of learning has hardly budge
  • fellow edu-nauts
  • Lectures are banned
  • attending class on Apple laptops
  • Lectures, Kosslyn says, are cost-effective but pedagogically unsound. “A great way to teach, but a terrible way to learn.”
  • Minerva boast is that it will strip the university experience down to the aspects that are shown to contribute directly to student learning. Lectures, gone. Tenure, gone. Gothic architecture, football, ivy crawling up the walls—gone, gone, gone.
  • “Your cash cow is the lecture, and the lecture is over,” he told a gathering of deans. “The lecture model ... will be obliterated.”
  • One imagines tumbleweeds rolling through abandoned quads and wrecking balls smashing through the windows of classrooms left empty by students who have plugged into new online platforms.
  • when you have a noncurated academic experience, you effectively don’t get educated.
  • Liberal-arts education is about developing the intellectual capacity of the individual, and learning to be a productive member of society. And you cannot do that without a curriculum.”
  • “The freshman year [as taught at traditional schools] should not exist,” Nelson says, suggesting that MOOCs can teach the basics. “Do your freshman year at home.”) Instead, Minerva’s first-year classes are designed to inculcate what Nelson calls “habits of mind” and “foundational concepts,” which are the basis for all sound systematic thought. In a science class, for example, students should develop a deep understanding of the need for controlled experiments. In a humanities class, they need to learn the classical techniques of rhetoric and develop basic persuasive skills. The curriculum then builds from that foundation.
  • What, he asks, does it mean to be educated?
  • methods will be tested against scientifically determined best practices
  • Subsidies, Nelson says, encourage universities to enroll even students who aren’t likely to thrive, and to raise tuition, since federal money is pegged to costs.
  • We have numerous sound, reproducible experiments that tell us how people learn, and what teachers can do to improve learning.” Some of the studies are ancient, by the standards of scientific research—and yet their lessons are almost wholly ignored.
  • memory of material is enhanced by “deep” cognitive tasks
  • he found the man’s view of education, in a word, faith-based
  • ask a student to explain a concept she has been studying, the very act of articulating it seems to lodge it in her memory. Forcing students to guess the answer to a problem, and to discuss their answers in small groups, seems to make them understand the problem better—even if they guess wrong.
  • e traditional concept of “cognitive styles”—visual versus aural learners, those who learn by doing versus those who learn by studying—is muddled and wrong.
  • pedagogical best practices Kosslyn has identified have been programmed into the Minerva platform so that they are easy for professors to apply. They are not only easy, in fact, but also compulsory, and professors will be trained intensively in how to use the platform.
  • Professors are able to sort students instantly, and by many metrics, for small-group work—
  • a pop quiz at the beginning of a class and (if the students are warned in advance) another one at a random moment later in the class greatly increases the durability of what is learned.
  • he could have alerted colleagues to best practices, but they most likely would have ignored them. “The classroom time is theirs, and it is sacrosanct,
  • Lectures, Kosslyn says, are pedagogically unsound,
  • I couldn’t wait for Minerva’s wrecking ball to demolish the ivory tower.
  • The MOOCs will eventually make lectures obsolete.”
  • Minerva’s model, Nelson says, will flourish in part because it will exploit free online content, rather than trying to compete with it, as traditional universities do.
  • The MOOCs will eventually make lectures obsolete.”
  • certain functions of universities have simply become less relevant as information has become more ubiquitous
  • Minerva challenges the field to return to first principles.
  • MOOCs will continue to get better, until eventually no one will pay Duke or Johns Hopkins for the possibility of a good lecture, when Coursera offers a reliably great one, with hundreds of thousands of five-star ratings, for free.
  • It took deep concentration,” he said. “It’s not some lecture class where you can just click ‘record’ on your tape.”
  • part of the process of education happens not just through good pedagogy but by having students in places where they see the scholars working and plying their trades.”
  • “hydraulic metaphor” of education—the idea that the main task of education is to increase the flow of knowledge into the student—an “old fallacy.”
  • I remembered what I was like as a teenager headed off to college, so ignorant of what college was and what it could be, and so reliant on the college itself to provide what I’d need in order to get a good education.
  • it is designed to convey not just information, as most MOOCs seem to, but whole mental tool kits that help students become morethoughtful citizens.
  • for all the high-minded talk of liberal education— of lighting fires and raising thoughtful citizens—is really just a credential, or an entry point to an old-boys network that gets you your first job and your first lunch with the machers at your alumni club.
  • Its seminar platform will challenge professors to stop thinking they’re using technology just because they lecture with PowerPoint.
  • professors and students increasingly separated geographically, mediated through technology that alters the nature of the student-teacher relationship
  • The idea that college will in two decades look exactly as it does today increasingly sounds like the forlorn, fingers-crossed hope of a higher-education dinosaur that retirement comes before extinction.
Daniel Spielmann

"Zum Frühstück lese ich die Posts meiner Kollegen" Interview mit Dr. Mareike ... - 0 views

www.lisa.gerda-henkel-stiftung.de/content.php

shared by Daniel Spielmann on 17 Aug 11 - No Cached
  • In diesem Zusammenhang wäre es auch wichtig, die Ausbildung der Studierenden im Umgang mit den sozialen Medien zu fördern und dies curricular in den Studienablauf einzubinden.
    • Daniel Spielmann
      Daniel Spielmann on 17 Aug 11
       
      And of course the rules and methods of citation have to be adjusted. How can Web 2.0-sources be quoted in scientific publications? Finding an answer to this question is crucial for motivating people to contribute.
  • Sehgewohnheiten, die sich gerade in Richtung „Listen“ verschieben, weil das die häufigste Präsentationsform von Information in den sozialen Medien ist.
    • Daniel Spielmann
      Daniel Spielmann on 17 Aug 11
       
      Interesting point. What does that mean for students' ability to come up with a coherent string of scientific text? Or: will these changing recepion habits make coherent text superfluous?
  • mehr Forschung über unsere gegenwärtige Internetkultur und eine größere Reflektion über unser Tun im Netz notwendig sind.
  • ...10 more annotations...
  • Datenschutzfragen
  • Das scheint Wissenschaftler sehr viel weniger umzutreiben als Privatpersonen.
    • Daniel Spielmann
      Daniel Spielmann on 17 Aug 11
       
      I'm not yet sure if that should surprise me or not.
  • Außerdem wird viele Wissenschaftler die fehlende Anerkennung davon abhalten, Zeit und Energie in die Veröffentlichung von Blogbeiträgen zu stecken.
  • Geisteswissenschaftler eben mit dem fragmentarischen, mit dem Äußern von noch nicht fertigen und mit vielen Fußnoten abgesicherten Meinungen schwer tun
    • Daniel Spielmann
      Daniel Spielmann on 17 Aug 11
       
      And because today's quotation habits don't really allow to integrate Web 2.0 sources slick enough.
  • Hier ist ein Umdenken erforderlich, weg von der Konkurrenz hin zur Zusammenarbeit
    • Daniel Spielmann
      Daniel Spielmann on 17 Aug 11
       
      cf Tacke, Oliver (2010): "(T)he principle of 'publish or perish' pushes scientists to keep their ideas secret until they are published; secrecy and taciturnity have become the primary directives."
  • social citation wie bei Zotero
  • Twittern bei Tagungen
  • zweite Diskussionsebene
  • als ob es zum gesprochenen Wort eine Fußnote gäbe
  • Bei den sozialen Medien stehen wie gesagt Kommunikation, Diskussion und Austausch einerseits, sowie gemeinsame Wissensgenerierung und kollaboratives Arbeiten andererseits im Vordergrund.
Gregg Fletcher

Teaching the Controversy: Why the Creationism Vs. Evolution Debate Should Stay Out of S... - 56 views

news.yahoo.com/ion-debate-stay-223900548.html

shared by Gregg Fletcher on 20 Feb 12 - No Cached
    • Tammy Ahearne
      Tammy Ahearne on 20 Feb 12
       
      teaching controversy? Really?
  • 14 percent of high school biology teachers personally reject not only the theory of evolution but also scientific method, which teaches rigorous critical thinking skills and draws a clear path to the discovery of real truths and how to separate them from merely apparent truths.
    • Tammy Ahearne
      Tammy Ahearne on 20 Feb 12
       
      I don't understand how this can be rejected with the CCSS?
  • ...2 more annotations...
  • The basic science of evolutionary biology underlies so many diverse disciplines that it can be considered a basic necessity of knowledge in modern scientific society.
    • Gregg Fletcher
      Gregg Fletcher on 20 Feb 12
       
      This statement is misleading in that it assumes the ID stand rejects small variations within an already preexisting genetic code.  Creationist and ID teachings both conclude that variations within the genetic code are essential to species survival.  The pseudo-proven evolution of species-to-species genetics does not need to be taught at any level in order for individuals to prosper at higher institutes of learning.
  • It seems today's Religious Right would raise a generation of kids who would perhaps conclude the lights are out because they used a curse word or took God's name in vain.
  • Tammy Ahearne on 20 Feb 12
     
    Great for ten page paper
Matt Claxon

Moving beyond technology in designing online learning - 70 views

www.tonybates.ca/...y-in-designing-online-learning

effective teaching screencast designing online learning

shared by Matt Claxon on 09 Feb 15 - No Cached
  • Some loved them, some hated them, and few were indifferent.
    • Matt Claxon
      Matt Claxon on 09 Feb 15
       
      This is just like my students with the screencasts.  Look for a way to give the TV-haters more options and relevant learning media.
  • At the time (and for many years afterwards) researchers such as Richard Clark (1983) argued that ‘proper’, scientific research showed no significant difference between the use of different media. In particular, there were no differences between classroom teaching and other media such as television or radio or satellite. Even today, we are getting similar findings regarding online learning (e.g. Means et al., 2010).
  • different media can be used to assist learners to learn in different ways and achieve different outcomes. In a sense, researchers such as Clark were right: the teaching methods matter, but different media can more easily support different ways of teaching than others
  • ...7 more annotations...
  • Thus requiring the television program to be judged by the same assessment methods as for the classroom lecture unfairly measures the potential value of the TV program. In this example, it may be better to use both methods: didactic teaching to teach understanding, then a documentary approach to apply that understanding. (Note that a television program could do both, but the classroom lecture could not.)
  • many media are better than one.
  • The use of different media also allows for more individualization and personalization of the learning, better suiting learners with different learning styles and needs.
  • technology on its own does not lead to the transfer of meaning.
  • This of course is what we do with technology in education. We try either to incorporate new technology into old formats, as with clickers and lecture capture, or we try to create the classroom in virtual space, as we do with learning management systems. What we are still developing but not yet clearly recognizing are formats, symbols systems and organizational structures that exploit the unique characteristics of the Internet as a medium.
  • Given the need to create and interpret meaning when using media, trying to use computers to replace or substitute for humans in the education process is likely to be a major mistake, at least until computers have much greater facility to recognize, understand and apply semantics, value systems, and organizational factors,
  • it is equally a mistake to rely only on the symbol systems, cultural values and organizational structures of classroom teaching as the means of judging the effectiveness or appropriateness of the Internet as an educational medium.
  • Matt Claxon on 09 Feb 15
     
    Defines the difference between technology and media and provides information (based on academic experience) about how to most effectively create online lessons and media.
Betty Powell

Time for Kids | Classroom | Mini-Lessons var theon=null;var onSection= - 6 views

www.timeforkids.com/...0,28171,1658109,00.html

scientific method kids discovery science elementary

shared by Betty Powell on 09 Sep 09 - Cached
  • Betty Powell on 09 Sep 09
     
    Students will identify steps of the scintific method in a news story.
  • Ramona Henderson on 20 Aug 12
     
    requires authorization
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