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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]
Sasha Thackaberry

Colleges use FAFSA information to reject students and potentially lower financial aid p... - 34 views

  • When would-be college students apply for financial aid using the FAFSA, they are asked to list the colleges they are thinking about attending. The online version of the form asks applicants to submit up to 10 college names. The U.S. Department of Education then shares all the information on the FAFSA with all of the colleges on the list, as well as state agencies involved in awarding student aid. The form notes that the information could be used by state agencies, but there is no mention that individual colleges will use the information in admissions or financial aid -- and there is no indication that students could be punished by colleges for where they appear on the list.
  • Now, some colleges use this “FAFSA position” when considering students’ applications for admission, which may affect decisions about admission or placement on the wait list, said David Hawkins, director of public policy and research for the National Association for College Admission Counseling.
  • So the institution is disinclined to use up a precious admissions slot for a student who is unlikely to enroll.  “The student has no idea that this information is being used in this context,” Hawkins said. The federal government "doesn’t indicate it. Institutions certainly aren’t telling students they are using it. Certainly, this is a concern from this association’s standpoint.”
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  • It's unclear if the Education Department was aware of this issue until contacted by Inside Higher Ed on Friday. The department now says it will review the longstanding practice of sharing the FAFSA positions with every college.
  • The use of the list on the FAFSA is just another example of how colleges are using increasingly sophisticated data mining techniques to recruit and shape their classes.
Steve Ransom

'What's Wrong With Education Cannot Be Fixed with Technology' -- The Other Steve Jobs |... - 4 views

  • But I’ve had to come to the inevitable conclusion that the problem is not one that technology can hope to solve. What’s wrong with education cannot be fixed with technology. No amount of technology will make a dent.
  • It’s a political problem. The problems are sociopolitical. The problems are unions. You plot the growth of the NEA [National Education Association] and the dropping of SAT scores, and they’re inversely proportional. The problems are unions in the schools. The problem is bureaucracy.
  • You’d be crazy to work in a school today. You don’t get to do what you want. You don’t get to pick your books, your curriculum. You get to teach one narrow specialization. Who would ever want to do that?
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  • It’s bad only if it lulls us into thinking we’re doing something to solve the problem with education.
  • The trouble is that education’s sociopolitical problems — its bureaucracies, its stakeholders, its poverty, as well as the sheer mass of the industry — are exactly what makes building a disruptive business around education so difficult.
Bill Kuykendall

Digital Domain - Computers at Home - Educational Hope vs. Teenage Reality - NYTimes.com - 32 views

  • Economists are trying to measure a home computer’s educational impact on schoolchildren in low-income households.
  • little or no educational benefit is found. Worse, computers seem to have further separated children in low-income households, whose test scores often decline after the machine arrives, from their more privileged counterparts.
  • few children whose families obtained computers said they used the machines for homework. What they were used for — daily — was playing games.
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  • “Scaling the Digital Divide,” published last month, looks at the arrival of broadband service in North Carolina between 2000 and 2005 and its effect on middle school test scores during that period. Students posted significantly lower math test scores after the first broadband service provider showed up in their neighborhood, and significantly lower reading scores as well when the number of broadband providers passed four.
  • The expansion of broadband service was associated with a pronounced drop in test scores for black students in both reading and math, but no effect on the math scores and little on the reading scores of other students.
  • THE one area where the students from lower-income families in the immersion program closed the gap with higher-income students was the same one identified in the Romanian study: computer skills.
  • How disappointing to read in the Texas study that “there was no evidence linking technology immersion with student self-directed learning or their general satisfaction with schoolwork.”
Christian Howd

How to Make American Teens Smarter - The Daily Beast - 51 views

  • "People don't really understand the nature of reading. They feel that reading is a skill, that it's transferable, so once you're a good reader, you can read anything that's put in front of you," says Daniel Willingham, a University of Virginia cognitive psychologist who focuses on K-12 education. "But that's only true for decoding—what you learn until grade three or four. After that, when you see good readers versus poor readers, what you're looking at is mostly differences in the knowledge that kids bring to the reading. It's easy to read something when you already know something about the topic. And if you don't know about the topic, it's utterly opaque to you."
  • That's why children should read newspapers and magazines, texts about nature and technology, and biographies—genres that increase real-world knowledge. This is especially important for poor children, who may not be exposed to as much "background" information at home: the random vocabulary, facts, and associations that make it easier to do well on tests like the NAEP and SAT, and to succeed in the workplace.
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    Americans may be reading more words today than ever before, but the content is less challenging. Dana Goldstein on kids' dismal reading scores-and a movement to get them to put down Twilight and pick up nonfiction.
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    You're absolutely right! Our students need to be provided opportunities to read a variety of text!
Dr. Combs

Research | Teachers Network: Effective Teachers - 63 views

  • Teachers whose students make the greatest achievement gains have extensive preparation and experience relevant to their current assignment (subject, grade level, and student population taught). Opportunities to work with like-minded, similarly accomplished colleagues – and to build and share collective expertise – are also strongly associated with effective teaching. Accomplished teachers who have opportunities to share their expertise — and serve as leaders (as coaches, mentors, teacher educator, etc.) — are more likely to remain in the profession. To teach effectively, teachers must have access to the people, resources, and policies that support their work in the classroom. This includes: (1) principals who cultivate and embrace teacher leadership; (2) time and tools for teachers to learn from each other, (3) opportunities for teachers to connect and work with community organizations and agencies that support students and their families outside the school walls; (4) evaluation systems that comprehensively measure the impact of teachers on student learning, (5) performance pay systems that primarily reward the spread of teaching expertise and spur collaboration among teachers.
  • A Better System for Schools: Developing, Supporting and Retaining Effective  Teachers
Steve Ransom

The Associated Press: Japan fattens textbooks to reverse sliding rank - 9 views

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    Alarmed that its children are falling behind those in rivals such as South Korea and Hong Kong, Japan is adding about 1,200 pages to elementary school textbooks. The textbooks across all subjects for six years of elementary school now total about 4,900 pages, and will go up to nearly 6,100.
Steve Ransom

Digital Age Damaging Learning | Nicholas Carr - 72 views

  • excessive use of the internet and other forms of technology diminishes our capacity for deep, meditative thinking, "the brighter the software, the dimmer the user", a counter-revolution may be required.
  • curricula must be developed not only with the potential benefits of technology linked to every learning outcome in mind, but also the costs.
    • Steve Ransom
       
      The Faustian bargain that Postman so often wrote about
  • available where there is clear utility, to remove it when there is not
    • Steve Ransom
       
      And who do we leave this decision up to? The individual? If so, we are in big trouble.
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  • we must be mindful of any cost associated with allowing ourselves to devolve to a more machine-like state.
    • Steve Ransom
       
      NO ONE is striving for this. Just the opposite.
  • Of greatest importance, however, is the status of our thinking, understanding how we think and the effect new technologies have on our cognitive processes. This debate extends beyond the neuroscience to questions relating to what is worth knowing and what mental functions are worth preserving at their present level of development
  • As a senior high school teacher, one of my greatest bugbears is the reluctance of students to reflect on the information they have collected and plan their essays. Rather, some expect to Google their entire essay, often skipping from one hyperlink to the next until they find something that appears to be relevant, then pasting it into their essay, frequently oblivious to academic honesty and coherence of argument. The ability to discern reliability of sources is also severely lacking
    • Steve Ransom
       
      This is a by-product of failing to address and teach good research methods in a digital world and assigning work that can simply be cut and pasted. We must move beyond "reporting" in a digital, information-rich, and connected world.
  • A primary role of educators is to foster qualities that are distinctly human: our ability to reflect, reason and imagine
    • Steve Ransom
       
      Exactly... and this must happen, regardless of the types of information that we have access to. To say that technology impedes this is laughable.
  • In the curricula of tomorrow this may entail identifying topics and tasks that begin with an instruction to turn all electronic devices off.
    • Steve Ransom
       
      No- it should begin with teachers establishing and negotiating meaningful, interesting, and powerful learning opportunities with access to all available tools. The computer as a learning tool is meant to extend physical human capabilities, not weaken them. It is the low-level, rote tasks that we require that weaken them. It's time to recognize this and wake up. Blaming the technology does little more than preserve the status quo.
anonymous

Book Banning and Censorship - 28 views

shared by anonymous on 13 Oct 10 - No Cached
  • The book you choose must be a reasonable consideration for a tenth grade class. In otherwords, it must be "Young Adult" literature that could not be rated higher than PG13 if it were a movie.
    • anonymous
       
      The American Library Association does not support or recommend rating books the way movies are rated.
pseudandry

NJEA has it WRONG for NJ school librarians! - 36 views

On December 7, 2010, NJEA President Barbara Keshishian announced "research-based education reform." One of the aspects of the proposed plan involves Educational Technology Coaches. [ http://www.nj...

NJEA librarians professional development technology

started by pseudandry on 08 Dec 10 no follow-up yet
Ed Webb

» Features » The Future of Unemployment - 0 views

shared by Ed Webb on 10 Feb 09 - Cached
  • (There is a rich - if unexpected - source of inspiration for this kind of collaborative space in the history of the 19th century mutual improvement societies, reading clubs and other self-organised, working class institutions. For example, the church halls and upstairs rooms of pubs where many of them met are still common enough - and would be worth exploring as possible venues for a group trying to set up such a space today.)
    • Ed Webb
       
      Not so unexpected - the Workers' Educational Association is one important part of the genealogy of Edupunk.
Michael Ritter

Online Literacy Is a Lesser Kind - ChronicleReview.com - 0 views

  • National School Boards Association measures social networking at nine hours per week, much of it spent on homework help
    • Bill Genereux
       
      This is the first year I have ever had students contact me via Facebook for help with assignments.
  • I continue to believe in the linear, author-driven narrative for educational purposes. I just don't believe the Web is optimal for delivering this experience. Instead, let's praise old narrative forms like books and sitting around a flickering campfire
  • Educators must keep a portion of the undergraduate experience disconnected, unplugged, and logged off.
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    • Michael Ritter
       
      And just how do pencils and blackboards form intellegence? I find the the whole "sitting around a flickering campfire" nonsense. Article seems to be written by one who wants to ignore the cultural changes taking place in how information is created and distributed. The linear, author-driven narrative is nothing more than an attempt to keep authortarian control over information and the learning process. Much of science cannot be approached in a linear fashion but has to recognize a web of relationships and interactions.
Kent Gerber

Can I have your half-attention, please? : Macleans OnCampus - 0 views

  • While some professors seek to exclude the devices from the classroom, others are creating multimedia-rich curricula in which students can draw on online resources and interact with each other. Banning laptops is just plain wrong, according to Don Krug, associate professor at UBC’s department of curriculum studies. He says students are adults, and the best a professor can hope for is a “respectful learning environment,” where students limit their own behaviour. “If they really want to learn the information, they will. They’re paying a lot of money,” he says. “We’re better off teaching them how to be responsible learners.”
    • Kent Gerber
       
      Shows two polar solutions to laptop problems: total ban & adapting curricula to include multi-media interaction. Also presents respectful learning environment as best course for students who are adults.
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    Article that mentions teacher's frustrations with laptops and various coping strategies.
Ed Webb

Web-monitoring software gathers data on kid chats by AP: Yahoo! Tech - 0 views

  • Parents who install a leading brand of software to monitor their kids' online activities may be unwittingly allowing the company to read their children's chat messages — and sell the marketing data gathered.
  • Software sold under the Sentry and FamilySafe brands can read private chats conducted through Yahoo, MSN, AOL and other services, and send back data on what kids are saying about such things as movies, music or video games. The information is then offered to businesses seeking ways to tailor their marketing messages to kids.
  • a separate data-mining service called Pulse that taps into the data gathered by Sentry software to give businesses a glimpse of youth chatter online. While other services read publicly available teen chatter, Pulse also can read private chats. It gathers information from instant messages, blogs, social networking sites, forums and chat rooms.
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  • Parents who don't want the company to share their child's information to businesses can check a box to opt out. But that option can be found only by visiting the company's Web site, accessible through a control panel that appears after the program has been installed. It was not in the agreement contained in the Sentry Total Home Protection program The Associated Press downloaded and installed Friday.
Ed Webb

News Blog Articles | Absurdist Literature Stimulates Our Brains | Miller-McCune Online ... - 1 views

  • Absurdist literature, it appears, stimulates our brains.
  • our ability to find patterns is stimulated when we are faced with the task of making sense of an absurd tale. What's more, this heightened capability carries over to unrelated tasks.
  • "the cognitive mechanisms responsible for implicitly learning statistical regularities" are enhanced when we struggle to find meaning in a fragmented narrative.
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  • we have an innate tendency to impose order upon our experiences and create what they call "meaning frameworks." Any threat to this process will "activate a meaning-maintenance motivation that may call upon any other available associations to restore a sense of meaning,"
Cindy Rolewski

Five Reasons to Use Wordle in the Classroom by Terry Freedman - 0 views

  • We know in theory that there are teachers -- probably the majority of teachers -- who have either never heard of Wordle or have no idea why they would need to know about it. I was reminded of this quite recently, in fact, during a visit to the
Ed Webb

Howard Community, Pa. college make admissions pact -- baltimoresun.com - 0 views

  • "I think the fundamental financial model for American higher education is broken, and therefore we need to look for alternative ways of providing an education that is appropriate and optimal but that uses our resources in slightly different ways," Durden said. "So here you have the opportunity to cut in half the price of a liberal arts education."
  • The Carlisle, Pa., school is entering into the same agreement with Montgomery College and two community colleges in Pennsylvania. Within several years, Durden hopes to have up to 15 participants.
  • One expert said the partnership was rare, and encouraging. "It's positive all around," said George R. Boggs, president of the American Association of Community Colleges. "It's great to see a university or four-year liberal arts school reaching out and giving those kids a chance and bringing them into their institution."
Greg Brandenburg

Bringing Girls and Boys to Computer Science with 'Alice' - 1 views

  • Attracting females is key to the future of computer science, Rodger says. In 2008, only 11.8 percent of U.S. bachelor's degrees in computer science went to women, according to the Computing Research Association. And Duke's showing is hardly better, said Rodger, who is trying to turn that around by making programming fun to learn.
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