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Roland Gesthuizen

Digital Divide and Social Media: Connectivity Doesn't End the Digital Divide, Skills Do... - 42 views

blogs.scientificamerican.com/...d-the-digital-divide-skills-do

digitaldivide social socialnetworking society connectivity ScientificAmerican blog

shared by Roland Gesthuizen on 15 Dec 11 - No Cached
  • Roland Gesthuizen on 15 Dec 11
     
    Whether we like it or not, we live in a very unequal and stratified world. We live in societies in which inequality is ignored in education, science, and in the social media. As Internet technologies are rapidly evolving and new digital divides on the Internet emerge, we must move beyond, at some point, a singular concern over Internet access and technological infrastructure issues. We must tackle socio-cultural differences, we must focus on Internet skills, literacies and social media usage.
Gerald Carey

Observations: Welcome to 'Bring Science Home' - 71 views

www.scientificamerican.com/...post.cfm

science resources activities

shared by Gerald Carey on 07 May 11 - No Cached
  • Today we kick off Scientific American's Bring Science Home initiative, which will offer 20 free tabletop science activities during the month of May. We hope they will make for easy—and fun—ways to enjoy science at home
Maureen Greenbaum

How Big Data Is Taking Teachers Out of the Lecturing Business: Scientific American - 1 views

www.scientificamerican.com/article.cfm

shared by Maureen Greenbaum on 19 Jul 13 - No Cached
  • Any accurate evaluation of adaptive-learning technology would have to isolate and account for all variables: increases or decreases in a class's size; whether the classroom was “flipped” (meaning homework was done in class and lectures were delivered via video on the students' own time); whether the material was delivered via video, text or game; and so on. Arizona State says 78 percent of students taking the Knewton-ized developmental math course passed, up from 56 percent before
  • in Japan, where it is common for managers who have studied English with the adaptive-learning software iKnow to list their iKnow scores on their resumes.
  • “The reality is that it's going to be done,” says Eva Baker, director of the Center for the Study of Evaluation at the University of California, Los Angeles. “It's not going to be a little part. It's going to be a big part. And it's going to be put in place partly because it's going to be less expensive than doing professional development.”
  • Maureen Greenbaum on 19 Jul 13
     
    This whole article is essential reading 
Maureen Greenbaum

How Big Data Is Taking Teachers Out of the Lecturing Business: Scientific American - 0 views

www.scientificamerican.com/article.cfm

adaptive learning pedagogy education ASU Arizona Knewton math

shared by Maureen Greenbaum on 19 Jul 13 - No Cached
  • David Heckman, a mathematician, was accustomed to lecturing to the class, but he had to take on the role of a roving mentor, responding to raised hands and coaching students when they got stumped
  • Like institutions at every level of American education, it is going through some wrenching changes. The university has lost 50 percent of its state funding over the past five years.
  • alarmingly high numbers of students showing up on campus unprepared to do college-level work.
  • ...2 more annotations...
  • more efficient way to shepherd students through basic general-education requirements—particularly those courses, such as college math, that disproportionately cause students to drop out
  • That fall, with little debate or warning, it placed 4,700 students into computerized math courses. Last year some 50 instructors coached 7,600 Arizona State students through three entry-level math courses running on Knewton software. By the fall of 2014 ASU aims to adapt six more courses, adding another 19,000 students a year to the adaptive-learning ranks.
Kenuvis Romero

This is your brain on psilocybin… | The Scicurious Brain, Scientific American... - 0 views

blogs.scientificamerican.com/...is-is-your-brain-on-psilocybin

shared by Kenuvis Romero on 23 Jun 13 - No Cached
  • the authors cite a large body of literature characterizing 5-HT2a agonism resulting in pyramidal cell inhibition in cortical areas via excitation of GABAergic interneurons that synapse on pyramidal cells.
  • increased blood deoxygenation levels is concretely correlated with neuronal action-potentions; inhibition of neurons results in less APs and thus less blood flow. BOLD contrasts are the basis of fMRI studies–all of them would be invalidated if this were refuted.
Roland O'Daniel

Scientific American: 60-Second Science - 80 views

www.scientificamerican.com/...podcasts.cfm

web2.0 podcast science scientific american

shared by Roland O'Daniel on 23 Aug 10 - Cached
  • Roland O'Daniel on 23 Aug 10
     
    Great weekly 60 second podcast that can be used as an incredible starter. I just listened to three podcasts that involved solar power, Mars, laughter and morality, and regressions to liars. If you can't start a conversation or class with those topics you aren't very imaginative!
Bill Kuykendall

How Much Is Left? The Limits of Earth's Resources, Made Interactive: Scientific American - 86 views

www.scientificamerican.com/article.cfm

interactive resources globalwarming

shared by Bill Kuykendall on 25 Aug 10 - Cached
  • Gerald Carey on 25 Aug 10
     
    Nice interactive showing how much of a variety of resources we have left globally.
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