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Siri Anderson

Lynn Hall Teacher Action Research Prize - Yale SOM ELC - 2 views

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    Wonderful opportunity to share your action research with a larger audience and potentially win awards! Thanks for the great find Liv!
Holly Barlaam

Nerve Impulses--biology mad - 60 views

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    Good info to review nerve impulses, action potentials, etc. Not anything interactive to use with students, but a good overview that is easy to understand.
Kenuvis Romero

Memory - Wikipedia, the free encyclopedia - 0 views

  • Encoding of working memory involves the spiking of individual neurons induced by sensory input, which persists even after the sensory input disappears (Jensen and Lisman 2005; Fransen et al. 2002). Encoding of episodic memory involves persistent changes in molecular structures that alter synaptic transmission between neurons. Examples of such structural changes include long-term potentiation (LTP) or spike-timing-dependent plasticity (STDP). The persistent spiking in working memory can enhance the synaptic and cellular changes in the encoding of episodic memory (Jensen and Lisman 2005).
  • Recent functional imaging studies detected working memory signals in both medial temporal lobe (MTL), a brain area strongly associated with long-term memory, and prefrontal cortex (Ranganath et al. 2005), suggesting a strong relationship between working memory and long-term memory. However, the substantially more working memory signals seen in the prefrontal lobe suggest that this area play a more important role in working memory than MTL (Suzuki 2007).
  • Consolidation and reconsolidation. Short-term memory (STM) is temporary and subject to disruption, while long-term memory (LTM), once consolidated, is persistent and stable. Consolidation of STM into LTM at the molecular level presumably involves two processes: synaptic consolidation and system consolidation. The former involves a protein synthesis process in the medial temporal lobe (MTL), whereas the latter transforms the MTL-dependent memory into an MTL-independent memory over months to years (Ledoux 2007). In recent years, such traditional consolidation dogma has been re-evaluated as a result of the studies on reconsolidation. These studies showed that prevention after retrieval affects subsequent retrieval of the memory (Sara 2000). New studies have shown that post-retrieval treatment with protein synthesis inhibitors and many other compounds can lead to an amnestic state (Nadel et al. 2000b; Alberini 2005; Dudai 2006). These findings on reconsolidation fit with the behavioral evidence that retrieved memory is not a carbon copy of the initial experiences, and memories are updated during retrieval.
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  • Physical exercise, particularly continuous aerobic exercises such as running, cycling and swimming, has many cognitive benefits and effects on the brain. Influences on the brain include increases in neurotransmitter levels, improved oxygen and nutrient delivery, and increased neurogenesis in the hippocampus. The effects of exercise on memory have important implications for improving children's academic performance, maintaining mental abilities in old age, and the prevention and potential cure of neurological diseases.
  • At the Center for Cognitive Science at Ohio State University, researchers have found that memory accuracy of adults is hurt by the fact that they know more, and have more experience than children, and tend to apply all this knowledge when learning new information. The findings appeared in the August 2004 edition of the journal Psychological Science.
  • Interference can hamper memorization and retrieval. There is retroactive interference, when learning new information makes it harder to recall old information[59] and proactive interference, where prior learning disrupts recall of new information. Although interference can lead to forgetting, it is important to keep in mind that there are situations when old information can facilitate learning of new information. Knowing Latin, for instance, can help an individual learn a related language such as French – this phenomenon is known as positive transfer.[60]
  • Methods to optimize memorization[edit] Memorization is a method of learning that allows an individual to recall information verbatim. Rote learning is the method most often used. Methods of memorizing things have been the subject of much discussion over the years with some writers, such as Cosmos Rossellius using visual alphabets. The spacing effect shows that an individual is more likely to remember a list of items when rehearsal is spaced over an extended period of time. In contrast to this is cramming which is intensive memorization in a short period of time. Also relevant is the Zeigarnik effect which states that people remember uncompleted or interrupted tasks better than completed ones. The so-called Method of loci uses spatial memory to memorize non-spatial information.[72]
Roland Gesthuizen

Three Ways to Ask Better Questions in the Classroom | Faculty Focus - 31 views

  • We need to ask good questions so that students see the importance of questions—how they make us think and help us learn. Eventually students may start asking better questions themselves, including ones we can’t answer. And those are the best questions of all.
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    "Good questions make students think, they encourage participation and I think they improve the caliber of the answers students give and the questions they ask. To achieve those worthwhile outcomes more regularly, I'd like to recommend three actions that have the potential to improve our questioning."
Nigel Coutts

The challenge and promise of learning organisations - The Learner's Way - 2 views

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    There is a great deal that I like about this description of humanity at its best from Ryan & Deci. It is both a goal to be achieved and an indicator of conditions which are required for us to fulfil our potential. While the focus of this statement is on the actions of the individual we can see how society might act to deny individuals the opportunities to lead such an inspired and agentic life. I like to imagine what a school might be like if every individual who plays a part in its functioning strove to extend themselves, master new skills and apply their talents responsibly.  Maybe schools would be like the 'learning organisations' described by Peter Senge. 
Jim Aird

How to Improve Public Online Education: Report Offers a Model - Government - The Chroni... - 18 views

  • var createCookie = function (name,value,days) { if (days) { var date = new Date(); date.setTime(date.getTime()+(days*24*60*60*1000)); var expires = "; expires="+date.toGMTString(); } else var expires = ""; document.cookie = name+"="+value+expires+"; path=/"; } var readCookie = function (name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null; } var eraseCookie = function (name) { createCookie(name,"",-1); } = Premium Content Welcome, James | Log Out | My Account | Subscribe Now Tuesday, April 23, 2013Subscribe Today Home News Opinion &amp; Ideas Facts &amp; Figures Blogs Jobs Advice Forums Events Store Faculty Administration Technology Community Colleges Global Special Reports People Current Issue Archives Government HomeNewsAdministrationGovernment function check() { if (document.getElementById("searchInput").value == '' ) { alert('Please enter search terms'); return false; } else return true; } $().ready(function() { if($('.comment_count') && $('div.comment').size() > 0) { $('.comment_count').html('(' + $('div.comment').size() +')') } $('#email-popup').jqm({onShow:chronShow, onHide:chronHide, trigger: 'a.show-email', modal: 'true'}); $('#share-popup').jqm({onShow:chronShow, onHide:chronHide, trigger: 'a.show-share', modal: 'true'}); }); E-mail function openAccordion() { $('#dropSection > h3').addClass("open"); $(".dropB").css('display', 'block'); } function printPage() { window.print(); } $(document).ready(function() { $('.print-btn').click(function(){ printPage(); }); }); Print Comments (3) Share April 22, 2013 How to Improve Public Online Education: Report Offers a Model By Charles Huckabee Public colleges and universities, which educate the bulk of all American college students, have been slower than their counterparts in the for-profit sector to embrace the potential of online learning to offer pathways to degrees. A new report from the New America Foundation suggests a series of policies that states and public higher-education systems could adopt to do some catching up. The report, "State U Online," by Rachel Fishman, a policy analyst with the foundation, analyzes where public online-education efforts stand now and finds that access to high-quality, low-cost online courses varies widely from state to state. Those efforts fall along a continuum of organizational levels, says the report. At the low end of the spectrum, course availability, pricing, transferability of credit, and other issues are all determined at the institutional level, by colleges, departments, or individual professors, resulting in a patchwork collection of online courses that's difficult for stud
  • patchwork collection of online courses that's difficult for students to navigate.
  • they can improve their online-education efforts to help students find streamlined, affordable pathways to a degree.
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  • "Taken together, these steps result in something that looks less like an unorganized collection of Internet-based classes, and more like a true public university."
  • I am always miffed at the people within Higher Ed who recognize that nothing about pedagogy has changed in 50 years except computers and PowerPoint but they still rationalize that nothing needs changed or fixed.
Tony Baldasaro

The Window: Thinking in the Seams: Engaging Interdisciplinary Thinking - 1 views

  • “thinking in the seams,” thinking that merges ideas from different disciplines to generate something novel and beneficial
  • “points of departure for discovering or confirming similar structures and relations in other disciplines.”
  • It stitches together perspectives or modes of inquiry from two or more disciplines to explore ideas. It is thinking “in the seams.”
    • Tony Baldasaro
       
      I like this visual of "stitching" together ideas.
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  • Patterns play a critical role in enabling interdisciplinary thinking.
  • According to researchers, interdisciplinary thinking often follows a sequence of mental actions: relationships between ideas within a discipline are recognized→the relationships are recognized as forming pattern(s)→the pattern(s) are decontextualized/generalized→examples of the same pattern(s) are recognized in other disciplines→ideas from one discipline “overlay” with another, generating new ideas.3
  • “usable knowledge”—knowledge that “is connected and organized around important concepts” and “supports transfer (to other contexts) rather than only the ability to remember.”
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    Creativity, innovation, and deepened understanding can result from interdisciplinary thinking. Despite these potential benefits, schools rarely cultivate the "mental dexterity" required for thinking in the seams
grayberg

Blended learning: Uncovering its transformative potential in higher education - 48 views

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    This article is one of the many written by D. Randy Garrison on the value of e-learning both as an independent entity and (as in this article) part of the blended learning environment. The authors are Dr. D. Randy Garrison, professor and academic director of Learning Commons at the University of Calgary; and Dr. Heather Kanuka, professor and academic director of the Centre for Teaching and Learning at the University of Alberta. Both authors have written extensively on the topic of e-learning, distance education, and adult education. This article discusses the potential of blended learning in higher education. The authors conclude that blended learning can have a substantial benefit for the student both in terms of logistics and educational satisfaction. "Blended learning is about rethinking and redesigning the teaching and learning relationship." However, it requires that the program's administrative and leadership issues are addressed and a solid action plan is in place. A "community of inquiry" must be formed by good course design which can be at the same time quite simple and yet complex. This topic is of great interest to me as I would like to reinstate a successful blended learning program at the college where I teach.
Caroline Dutton

Health - 0 views

  • The World Health Organization (WHO) estimates that exposure to smoke from the simple act of cooking is the fifth worst risk factor for disease in developing countries, and causes almost two million premature deaths per year – exceeding deaths attributable to malaria or tuberculosis.
  • Women in developing countries are also at risk of head and spinal injuries, pregnancy complications, and maternal mortality from the strenuous task of carrying heavy loads of firewood or other fuels. Frequent exposure to cookstove smoke can also cause disabling health impacts like cataracts, which affect women more than men, and is the leading cause of blindness in developing countries.
  • Rudimentary wood-fired cookstoves and open fires emit fine particles, carbon monoxide, and other pollutants at levels up to 100 times higher than the recommended limits set by WHO
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  • A randomized-control study in Guatemala led by the University of California, Berkeley, found that halving exposure to indoor air pollution with a chimney stove brought about a reduction in severe pneumonia, and that larger reductions in exposure had more pronounced effects. A systematic review of all available studies on the link between solid fuel use and child pneumonia has found an almost doubling of risk for those exposed.
  • Burns from open fires and unsafe cookstoves are another insidious risk faced by poor households dependent on kerosene, open fires, and unstable metal or clay cookstoves, contributing to a substantial percentage of the estimated 300,000 burn deaths that occur annually
  • While the link between exposure to cookstove smoke and a wide range of health problems such as pneumonia, chronic obstructive pulmonary disease, and lung cancer is well established, the current body of evidence linking cookstoves with other potentially important health effects is compelling but less documented
  • Nearly all of the existing evidence is based on observational studies that compare groups using open fires and traditional cookstoves with those using cleaner fuels, with very little being directly obtained from studies that directly measure the effects of interventions.
  • More evidence is needed to demonstrate that the levels of exposure reduction delivered by clean cookstove and fuels will result in declines in related illnesses and deaths.
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    This is the Global alliance for Clean Cookstoves website. They offer much information about the issues surrounding the topic and their action plan for affecting change!
Kalin Wilburn

Digital Learning Day :: Home - 67 views

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    you tube intro to digital learning day
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    Join us as we create a national awareness campaign to celebrate innovative teachers and instructional strategies. Technology has changed the way we do everything from grocery shopping, to listening to music, and reading books. It's time to take action to leverage this potential with more innovative uses of technology in our nation's schools to ensure every student experiences personalized learning with great teaching.
Cynthia Sarver

CITE Journal - Language Arts - 94 views

  • Since it is through communication that we exercise our political, economic and social power, we risk contributing to the hegemonic perpetuation of class if we fail to demand equal access to newer technologies and adequately prepared teachers for all students
    • Cynthia Sarver
       
      What is being done??
  • They can benefit their students by developing and then teaching their students to develop expertise in evaluation of search engines and critical analysis of Web site credibility. Well-prepared teachers, with a deep and broad understanding of language, linguistics, literature, rhetoric, writing, speaking, and listening, can complement those talents by studying additional semiotic systems that don’t rely solely on alphabetic texts.
  • Not only will teachers need to understand “fair use” policies, they are likely to need to integrate units on ethics back into the curriculum to complement those units on rhetoric.
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  • Students should be counseled not only on the risks to their physical safety, but also on the ways that the texts they are composing today, and believe they have eliminated, often have lives beyond their computers, and may reappear in the future at a most inopportune time.
  • learn methods of critically analyzing the ways in which others are using multiple semiotic systems to convince them to participate, to buy, to believe, and to resist a wide range of appeals
  • It also implies the process of uncovering one’s own cultural, social, political and personal (e.g. age, gender) backgrounds and understanding how these backgrounds can and often do influence one’s own ways of communicating and interacting with others in virtual and face-to-face encounters.
  • nstances of anti-social behavior in online communication such as using hurtful language and discriminating among certain members of virtual communities have been reported.
  • allows their members to construct and act out identities that may not necessarily be their real selves and thus lose a sense of responsibility toward others
  • Professional development for teachers and teacher educators must be ongoing, stressing purposeful integration for the curriculum and content, rather than merely technical operation. It also needs to provide institutional and instructional support systems to enable teachers to learn and experiment with new technologies. Offering release time, coordinating student laptop initiative programs or providing wireless laptop carts for classroom use, locating computer labs in accessible places to each teacher, scheduling lab sessions acceptable for each teacher, and providing alternative scheduling for professional development sessions so that all teachers can attend, are a few examples of such systems. Finally, teachers and students must be provided with technical support as they work with technology. Such assistance must be reliable, on-demand, and timely for each teacher and student in each classroom.
  • educators must address plagiarism, ownership, and authorship in their classrooms.
  • strategies to assess the quality of information and writing on the Web
  • help students develop netiquette
  • Such netiquette is thus not only about courtesy; more importantly, it is about tolerance and acceptance of people with diverse languages, cultures, and worldviews.
  • Teachers and teacher educators must examine with students the social processes through which humans grow individually and socially, and they must expose the potentially negative consequences of one’s individual actions. In doing so, teachers and educators will be able to reinforce the concept of learning as a social process, involving negotiation, dialogue, and learning from each other, and as a thinking process, requiring self-directed learning as well as critical analysis and synthesis of information in the process of meaning-making and developing informed perceptions of the world.
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