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leo bnu

一位世界级专家的学习研究关注(二) at 益学会 > 教育中文翻译 - 0 views

  • 如果我们能够理解人类的思维是如何学习的,我们就能够理解如何管理我们的学习资源网络。
  • 社会性网络理论时代,这是Duncan J. Watts等人开创的领域
  • 学习网络这个项目在理论上、以及超越理论的目的,就是要建立或帮助人们建立各种工具,当它们被大量使用时,将会产生出一个自我组织的网络来。
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  • 想象一下一个这样的文字处理软件,它会在你输入论文时,向你建议你在那时可能想阅读和使用的参考资料。它工作良好,不会有偏见,也没有背后的商业动机。想象这样一个网络:在你创建出自己的学习资源后,如果打算将其放到开放市场上去销售,它能够立刻准确地告诉你,你的资源价值几何。
isaac Mao

Your Child's Growing Brain | ParentCenter - 0 views

  • Most of the brain's wiring is established during the first few years of life. At birth it was only about a quarter of its eventual adult size. But by age 2, it has reached three-fourths of adult size! And by 5, the brain will be very close to adult size and volume.
  • Surprisingly, the brain of a 2-year-old has trillions of connections — double the number that an adult has! The brain grows connections in response to all kinds of input in order to adapt and survive. Over time, certain connections are used again and again while others fall by the wayside
isaac Mao

More Power to Those That Share « EDES 501 Web 2.0 Learning Log - 0 views

  • finished reading a deeply philosophical essay by Isaac Mao from The People’s Republic of China called “Sharism: A mind revolution.”  This essay is part of a collection of essays gathered by Joi Ito  to celebrate the power of Web 2.0 and “all the people who are willing to share.”  It was first brought to my attention by Will Richardson who reflected on Mao’s thoughts in his own blog last week as he lamented that there are still educators out there who are not willing to share their best teaching practices and lessons with others online (Nov. 18, 2008). 
isaac Mao

Free will - Wikipedia, the free encyclopedia - 1 views

  • It is claimed by some that quantum indeterminism is confined to microscopic phenomena.[54] The claim that events at the atomic or particulate level are unknowable can be challenged experimentally and even technologically: for instance, some hardware random number generators work by amplifying quantum effects into practically usable signals. However, this only amounts to macroscopic indeterminism if it can be shown that microscopic events really are indeterministic.
  • Hard incompatibilism is defended by Derk Pereboom, who identifies a variety of positions where free will is seen irrelevant to indeterminism/determinism, among them the following: Determinism (D) is true, D does not imply we lack free will (F), but in fact we do lack F. D is true, D does not imply we lack F, but in fact we don't know if we have F. D is true, and we do have F. D is true, we have F, and F implies D. D is unproven, but we have F. D isn't true, we do have F, and would have F even if D were true. D isn't true, we don't have F, but F is compatible with D. Derk Pereboom, Living without Free Will,[13] p. xvi. Pereboom calls positions 3 and 4 soft determinism, position 1 a form of hard determinism, position 6 a form of classical libertarianism, and any position that includes having F as compatibilism. He largely ignores position 2
  • Compatibilist models of free will often consider deterministic relationships as discoverable in the physical world (including the brain). Cognitive naturalism[118] is a physicalist approach to studing human consciousness in which mind is simply part of nature, perhaps merely a feature of many very complex self-programming feedback systems (for example, neural networks and cognitive robots), and so must be studied by the methods of empirical science, for example, behavioral science and the cognitive sciences like neuroscience and cognitive psychology.[101][119] Cognitive naturalism stresses the role of neurological sciences. Overall brain health, substance dependence, depression, and various personality disorders clearly influence mental activity, and their impact upon volition also is important.[113] For example, an addict may experience a conscious desire to escape addiction, but be unable to do so. The "will" is disconnected from the freedom to act. This situation is related to an abnormal production and distribution of dopamine in the brain.[120] The neuroscience of free will places restrictions on both compatibilist and incompatibilist free will conceptions. Compatibilist models adhere to models of mind in which mental activity (such as deliberation) can be reduced to physical activity without any change in physical outcome. Although compatibilism is generally aligned to (or is at least compatible with) physicalism, some compatibilist models describe the natural occurrences of deterministic deliberation in the brain in terms of the first person perspective of the conscious agent performing the deliberation.[7] Such an approach has been considered a form of identity dualism. A description of "how conscious experience might affect brains" has been provided in which "the experience of conscious free will is the first-person perspective of the neural correlates of choosing".[7]
isaac Mao

中文網志年會2008 廣州攻略 « iLEMONed CN - 0 views

  • 感謝 Isaac、Shizhao、Tangos、lonsonlo 等前輩給予機會讓我為年會出力!我寫了一篇不完全指南,希望能起到幫助。
  • 廣州氣候跟香港差不多,11月也不會很冷。個人的經驗是兩件衣服足夠了,不需要毛衣。具體天氣請留意本文更新,不建議參考天氣預報。。
isaac Mao

Cooking and Cognition: How Humans Got So Smart - 0 views

  • For a long time, we were pretty dumb. Humans did little but make "the same very boring stone tools for almost 2 million years," he said. Then, only about 150,000 years ago, a different type of spurt happened — our big brains suddenly got smart. We started innovating. We tried different materials, such as bone, and invented many new tools, including needles for beadwork. Responding to, presumably, our first abstract thoughts, we started creating art and maybe even religion.
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    Cooking and Cognition: How Humans Got So Smart
isaac Mao

分享主义:一场思维革命 - a knol by Isaac Mao - 0 views

  • Similar Content on the Webyeeyan.com 83%163.com 81%
isaac Mao

Learning 2.0: The Threat (and promise) of Social Interaction - Bokardo - 0 views

  • So the shift to public display, a shift to expected social interaction, changed the way the students learned and the effort they put into their education. If that’s not an incentive to experiment with and use social software I don’t know what is. Social software isn’t just a new way to work, it changes the effort we put into that work. Now there is a sound byte for social media consultants.
isaac Mao

IgnitePhilly -- Five Minutes To Communicate - Practical Theory - 0 views

  • And it was really fun and tough to try to boil down what I think and believe about school reform to a five minute speech to non-educators. And it's a good thing I talk fast. Enjoy.
isaac Mao

Face to Face: Alan Kay Still Waiting for the Revolution | Scholastic.com - 7 views

  • Since inventing much of the technology behind personal computing in the late 1960s, Alan Kay has dedicated his work to developing better learning environments for children. Now a senior researcher at HP and the president of Viewpoints Research Institute, Kay is launching Squeak, a multimedia authoring tool that allows children to construct dynamic simulations of real-world phenomena. We spoke with him about the unfulfilled promise of technology in schools—and about what computers have in common with pianos.
isaac Mao

Every drink shrinks the brain, warns new research | theage.com.au - 3 views

  • The American research, which looked at brain scans of more than 1800 people, comes after Australia's National Health and Medical Research Council released draft guidelines warning that more than two drinks a day posed a health risk.
  • Their MRI scans revealed brain volume of moderate drinkers was almost 1% smaller than teetotallers while those who had 14 or more drinks a week suffered 1.2% shrinkage.
isaac Mao

The Human Brain - Exercise - 13 views

  • Only recently have scientists been able to learn how the neural network of the brain forms. Beginning in the womb and throughout life this vast network continues to expand, adapt, and learn.
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  • Plasticity is the basic mental drive that networks your brain, giving you cognition and memory – fluidity, versatility, and adaptability.
  • Before birth you created neurons, the brain cells that communicate with each other, at the rate of 15 million per hour! When you emerged into the world, your 100 billion neurons were primed to organize themselves in response to your new environment – no matter the culture, climate, language, or lifestyle.
  • A healthy, well-functioning neuron can be directly linked to tens of thousands of other neurons,
  • A healthy, well-functioning neuron can be directly linked to tens of thousands of other neurons, creating a totality of more than a hundred trillion connections – each capable of performing 200 calculations per second!
  • Many neuroscientists believe that learning and memory involve changes at neuron-to-neuron synapses.
  • Travel is another good way to stimulate your brain. It worked for our ancestors, the early Homo sapiens. Their nomadic lifestyle provided a tremendous stimulation for their brains that led to the development of superior tools and survival skills. In comparison, the now-extinct Neanderthal was a species that for thousands of years apparently did not venture too far from their homes. (Maybe they were simply content with their lives – in contrast to the seldom-satisfied sapien.)
  • Exercise is a natural part of life, although these days we have to consciously include it in our daily routine. Biologically, it was part of survival, in the form of hunting and gathering or raising livestock and growing food. Historically, it was built into daily life, as regular hours of physical work or soldiering. What is now considered a form of exercise – walking –was originally a form of transportation.
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