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dpurdy

Hydrogen vehicle - Wikipedia, the free encyclopedia - 13 views

en.wikipedia.org/...Hydrogen_vehicle

hydrogen what form infrastructure current

shared by dpurdy on 19 Mar 12 - Cached
    • dpurdy
      dpurdy on 19 Mar 12
       
      Is hydrogen sustainable? depends on the source. see this highlight.
  • While methods of hydrogen production that do not use fossil fuel would be more sustainable
  • The challenges facing the use of hydrogen in vehicles include production, storage, transport and distribution.
  • ...3 more annotations...
  • The hydrogen infrastructure consists mainly of industrial hydrogen pipeline transport and hydrogen-equipped filling stations like those found on a hydrogen highway. Hydrogen stations which are not situated near a hydrogen pipeline can obtain supply via hydrogen tanks, compressed hydrogen tube trailers, liquid hydrogen tank trucks or dedicated onsite production.
  • Hydrogen use would require the alteration of industry and transport on a scale never seen before in history. For example, according to GM, 70% of the U.S. population lives near a hydrogen-generating facility but has little access to hydrogen, despite its wide availability for commercial use.[64] The distribution of hydrogen fuel for vehicles throughout the U.S. would require new hydrogen stations that would cost, by some estimates approximately 20 billion dollars[65] and 4.6 billion in the EU.[66] Other estimates place the cost as high as half trillion dollars in the United States alone.[67]
  • Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier. Currently it is most frequently made from methane or other fossil fuels. However, it can be produced from a wide range of sources (such as wind, solar, or nuclear) that are intermittent, too diffuse or too cumbersome to directly propel vehicles. Integrated wind-to-hydrogen plants, using electrolysis of water, are exploring technologies to deliver costs low enough, and quantities great enough, to compete with traditional energy sources.[2]
  • dpurdy on 19 Mar 12
     
    Fuel cell cars are expensive.  The fuel cell costs a lot
Lee-Anne Patterson

Tech Plan Part 1 « The Thinking Stick - 2 views

www.thethinkingstick.com/?p=581

techplan technology planning Jeff Utecht infrastructure

shared by Lee-Anne Patterson on 05 Feb 09 - Cached
  • Lee-Anne Patterson on 05 Feb 09
     
    Jeff's look at the infrastructure needed for technology savy schools.
  • Lee-Anne Patterson on 05 Feb 09
     
    Jeff Utecht in Thailand is a good place to go for synthesised information about technology in education. He shares his infrastructure ideas in this series of blog posts
Don Doehla

The Shanghai Secret - NYTimes.com - 26 views

www.nytimes.com/...edman-the-shanghai-secret.html

nytimes article education shanghai

shared by Don Doehla on 01 Nov 13 - No Cached
  • Don Doehla on 01 Nov 13
     
    HANGHAI - Whenever I visit China, I am struck by the sharply divergent predictions of its future one hears. Lately, a number of global investors have been "shorting" China, betting that someday soon its powerful economic engine will sputter, as the real estate boom here turns to a bust. Frankly, if I were shorting China today, it would not be because of the real estate bubble, but because of the pollution bubble that is increasingly enveloping some of its biggest cities. Optimists take another view: that, buckle in, China is just getting started, and that what we're now about to see is the payoff from China's 30 years of investment in infrastructure and education. I'm not a gambler, so I'll just watch this from the sidelines. But if you're looking for evidence as to why the optimistic bet isn't totally crazy, you might want to visit a Shanghai elementary school.
  • Don Doehla on 01 Nov 13
     
    HANGHAI - Whenever I visit China, I am struck by the sharply divergent predictions of its future one hears. Lately, a number of global investors have been "shorting" China, betting that someday soon its powerful economic engine will sputter, as the real estate boom here turns to a bust. Frankly, if I were shorting China today, it would not be because of the real estate bubble, but because of the pollution bubble that is increasingly enveloping some of its biggest cities. Optimists take another view: that, buckle in, China is just getting started, and that what we're now about to see is the payoff from China's 30 years of investment in infrastructure and education. I'm not a gambler, so I'll just watch this from the sidelines. But if you're looking for evidence as to why the optimistic bet isn't totally crazy, you might want to visit a Shanghai elementary school.
bheath

From Farm to Table | Orion Magazine - 23 views

www.orionmagazine.org/...7807

shared by bheath on 11 Jun 14 - No Cached
  • “Farmers’ markets aren’t sexy anymore
    • bheath
      bheath on 11 Jun 14
       
      Read on and tell me why Farmers markets have failed to advance the sustainable and local food movement.
  • What we need is a system of local “food hubs” that can process and bundle local foods and deliver them to the places where America eats.
  • Perhaps the only thing all these food hubs share is a conviction that there is value in preserving regional identity, artisanal character, and sustainable practices—in saving some products from the great meat grinder of industrial food distribution.
  • ...2 more annotations...
  • Some simply bundle the produce of multiple small farms to reach the consistent volumes and product diversity required to supply local markets. Some are purely virtual marketplaces that allow chefs to find available produce from regional farms and buy it directly. Some have a social mission to not only bring foods to underprivileged neighborhoods but to increase food literacy as well, or to guarantee fair prices to farms and farmworkers. And some specialize in incubating new producers like Pete
  • See an audio slide show about the Mad River Food Hub at the Reimagining Infrastructure series homepage, www.orionmagazine.org/infrastructure.
Roland Gesthuizen

Challenging the Model of 1:1 with BYOD | Edutopia - 87 views

www.edutopia.org/...e-to-one-model-amanda-paquette

BYOD edutopia 1:1 ipad

shared by Roland Gesthuizen on 09 Dec 12 - No Cached
    • Roland Gesthuizen
      Roland Gesthuizen on 09 Dec 12
       
      Interesting reading how this school implemented a hybrid BYOD 1:1 program. The emphasis is on a collaborative, co-teaching model rather than slabs of professional development around particular applications.
  • Roland Gesthuizen on 09 Dec 12
     
    This year my school district in Vermont ventured into a sort-of BYOD/1:1 hybrid program. We realized the importance of allowing our students access to technology to enhance their learning, but the infrastructure wasn't in place to tackle a traditional BYOD. .. Instead, we chose to be creative with our technology and professional development.
anonymous

What are the Disadvantages of Online Schooling for Higher Education? - 18 views

study.com/...ling_for_Higher_Education.html

online disadvantages

shared by anonymous on 23 Oct 16 - No Cached
  • anonymous on 23 Oct 16
     
    "hat Are the Disadvantages of Online Schooling for Higher Education? Today, online schooling for higher education is prevalent across many fields. While there are several benefits to online schooling, such as flexibility and convenience, there are also real and perceived disadvantages. Explore some of the potential drawbacks of online learning. View 10 Popular Schools » Online Schooling In 2012, about a quarter of undergraduate college students were enrolled in distance education courses as part -- if not all -- of their studies, according to a 2014 report from the National Center for Education Statistics. That same data found that 29.8% of graduate students in this country are enrolled in some or all distance learning classes as well. A 2013 report from Babson Survey Research Group and Quahog Research Group, LLC, pointed out that approximately 86.5% of higher education institutions offer distance learning classes. Clearly, online schooling is commonplace. Disadvantages: Student Perspective Despite advantages, online schooling is not the right fit for every student. Taking online courses is generally believed to require more self-discipline than completing a degree on campus, a belief that is supported by SCHEV -- the State Council of Higher Education for Virginia. Because online schooling options often allow students to complete much of the coursework at their own pace, students must be motivated to stay on schedule and manage their time accordingly. Other potential disadvantages from a student's viewpoint may include the following: Less Instructional Support Although instructors are available to students via e-mail, telephone, Web discussion boards and other online means, some students may see the lack of face-to-face interaction and one-on-one instruction as a challenge. A lack of communication or miscommunication between instructors and students may frustrate students who are struggling with course materials. That could be exacerbated by the casual nature
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.
Steve Ransom

Attention versus distraction? What that big NY Times story leaves out » Niema... - 51 views

www.niemanlab.org/...-big-ny-times-story-leaves-out

distraction Internet brain passion customize learning school web attention

shared by Steve Ransom on 26 Nov 10 - No Cached
  • Steve Ransom on 26 Nov 10
     
    The web is a space whose very abundance of information - and whose very informational infrastructure - trains our attention to follow our interests. And vice versa. In that, it's empowering information as a function of interest. It's telling Vishal that it's better to spend time with video than with Vonnegut - simply because he's more interested in editing than in reading. Vishal needs needs no other justification for his choice; interest itself is its own acquittal. And we're seeing the same thing in news. While formal learning has been, in the pre-digital world, a matter of rote obligation in the service of intellectual catholicism - and news consumption has been a matter of the bundle rather than the atom - the web-powered world is creating a knowledge economy that spins on the axis of interest. Individual interest. The web inculcates a follow your bliss approach to learning that seeps, slowly, into the broader realm of information; under its influence, our notion of knowledge is slowly shedding its normative layers.
Kevin Jarrett

PBS and Grunwald National Research Indicates Lack of Technology Infrastructure in Class... - 23 views

www.prnewswire.com/...e-in-classrooms-115116274.html

research edreform

shared by Kevin Jarrett on 09 Feb 11 - No Cached
  • Kevin Jarrett on 09 Feb 11
     
    A better writeup than the one on PBS.org, which was a little too self-promotional for my taste.
S Inniss

Typhoon Haiyan kills 10,000 in Philippines: live updates | World news | theguardian.com - 15 views

www.theguardian.com/...00-in-philippines-live-updates

typhoon kills philippines world world news updates weather development

shared by S Inniss on 07 Jul 14 - No Cached
    • S Inniss
      S Inniss on 07 Jul 14
       
      jghjgfhjhgh
  • S Inniss on 07 Jul 14
     
    An unfolding disaster of incredible proportions. Links to weather and climate, development, aid, infrastructure
Jennie Snyder

Building the Culture of an Empowered Mindset Towards Technology Innovation | The Princi... - 23 views

georgecouros.ca/...3912

edtech innovation mindset culture change technology leadership principal

shared by Jennie Snyder on 06 Jun 13 - No Cached
  • In this work, I have realized how truly important the role of principal is in building, not only in creating a positive culture, but an innovative one.  
  • Often times, as the principal goes, so does the culture of the school.
  • It is unlikely for an entire school to be “pushing the edge” if the principal or administrative team is not helping to pave the way for their community as they learn alongside of them.
  • ...1 more annotation...
  • o create a visual that discusses the correlation of the school mindset on technology innovation in learning, and the alignment it has with administrator support, professional development, and the corresponding hardware/infrastructure within the school/classroom.  
Brandie Hayes

5 Ideas That Could Have Prevented Flooding in New York - Emily Badger - The Atlantic Ci... - 20 views

www.theatlanticcities.com/...3754

ideas flood prevention sea gates surge barriers elevated infrastructure wave attenuators oysters and sand development patterns

shared by Brandie Hayes on 30 Apr 13 - No Cached
  • mitigate
  • Wave Attenuators.
  • played a critical role in stabilizing the shoreline
  • Brandie Hayes on 30 Apr 13
     
    Article that describes 5 flood prevention ideas. Each idea includes a visual to aid in understanding (a video, photograph, map or visualization)
Scott Kinkoph

BYOD: Increase Chances for Success! - 44 views

image

started by Scott Kinkoph on 22 Oct 12 no follow-up yet
Roland Gesthuizen

A Principal's Reflections: Common Misconceptions of Educators Who Fear Technology - 1 views

esheninger.blogspot.com.au/...ceptions-of-educators-who.html

technology technologyrefusal principal

shared by Roland Gesthuizen on 01 Jul 12 - No Cached
  • as there are many creative ways to cut costs, as well as to free resources that can be used with existing infrastructures.  Schools can utilize cost-effective lease purchase programs for computers, investigate the implementation of a Bring Your Own Technology (BYOT) program, or promote the use of a plethora of free Web 2.0 tools.
  • Schools and classrooms do not, and will not, spiral out of control when we allow teachers the flexibility to take calculated risks to innovate with technology or permit students to learn using social media or their own devices.
  • One of the most powerful means of professional development is through the use of social media where educators can create their own Personal Learning Network (PLN) based entirely on their unique needs and passions.
  • ...1 more annotation...
  • Don’t let fear based on misconception prevent you from creating a more student-centered, innovative learning culture
  • Roland Gesthuizen on 01 Jul 12
     
    "Even as we are seeing more schools and educators transform the way they teach and learn with technology, many more are not. .. Opinions vary on the merits of educational technology, but common themes seem to have emerged.  Some of the reasons for not embracing technology have to do with several misconceptions revolving around fear."
Jamie Menshouse

What We Learned: A 1:1 iPad Reflection | Edutopia - 185 views

www.edutopia.org/...pad-reflection-andrew-marcinek

shared by Jamie Menshouse on 25 Aug 12 - No Cached
  • One of the best decisions our team made last summer was to pre-install Casper (5) profiles on all of our iPads. We pulled the student IDs from our ASPEN (6) student information system, logged each student into Casper and installed the four profiles needed for our plan. The profiles took Safari web browser off the iPad.
  • As we progressed through the year, we discovered that these tools took a lot of time to create something we were trying to move away from in the first place. The reason for moving away from textbooks is that they offer a myopic vision of a world that is ever-changing. Simply viewing a textbook on an iPad does not change or innovate learning, nor does it use the iPad to its full potential. If your plan is to digitize a standard textbook, save your money and renew your textbook licenses.
  • This year we are incorporating K-12 digital portfolios along with revised information and digital literacy standards. Every BPS student will have a Google Apps for Education account that they will use in conjunction with the Blogger (15) application to begin creating their Life of Learning portfolio
  • ...8 more annotations...
    • Jeppe Egendal
      Jeppe Egendal on 27 Aug 12
       
      Digital portfolio og blogger
    • Jeppe Egendal
      Jeppe Egendal on 27 Aug 12
       
      Begrundelser for anvendelsen af iPads i undervisningen bevæger sig fra en forestilling om at erstatte tekstbøger til en forestilling om at kunne lærerne kan samarbejde med eleverne i skyen ved hjælp af værktøjer, der automatisk synkroniserer med eleverns iPads
  • The students that make it into help desk are those who not only enjoy working with technology in an educational context, but have a desire to serve, support and possibly solve problems in the school on a daily basis.
  • . Aside from simply troubleshooting, our students help their former teachers at the middle and elementary levels as well as create how-to scripts and videos for students, faculty and the Burlington community. Our students have not only helped within the BPS community, but have helped our Tech Team organize two major conferences in the past year:
    • Jeppe Egendal
      Jeppe Egendal on 27 Aug 12
       
      Eleverne hjælper som ressorucepersoner i skolen
  • You can have the most precisely calculated plan in place before you launch, but if you don't have the right support in place, your launch may stumble. I regard our IT department as one of the best I have ever worked with. I say this in all sincerity because I do "work with" this team. These guys not only manage a robust infrastructure, but they take part in the educational conversation and give our staff the best tools to create dynamic, engaging classrooms.
    • Jeppe Egendal
      Jeppe Egendal on 27 Aug 12
       
      Teknisk support er en del af løsningen og de skal deltage i den løbende pædagogisk/didaksike debet
  • However, we must work to incorporate information and digital literacy standards into the K-12 curriculum as early as possible. Students in Kindergarten should understand what it means to be nice to someone and how that will translate to writing and living on the Web. As students grow up through the educational pathways, they must be exposed to new and emerging technologies as early as possible in a safe, responsible manner. By doing so, we are preparing them for a global economy that requires these skills.
    • Jamie Menshouse
      Jamie Menshouse on 31 Aug 12
       
      Our middle school is adding character education to the arts and humanities curriculum. Teaching students at a young age to be thoughtful and responsible with technology will make it a much better experience inside the classroom.
Roland Gesthuizen

Eric Sheninger: Common Misunderstandings of Educators Who Fear Technology - 113 views

www.huffingtonpost.com/...understandings-_b_1516429.html

technologyrefusal fear behaviour

shared by Roland Gesthuizen on 24 Jul 12 - No Cached
  • Don't let fear based on misconception prevent you from creating a more student-centered, innovative learning culture. Rest assured, everything else will fall into place.
  • The fear of not being able to meet national and state standards, as well as mandates, leaves no time in the minds of many educators to either work technology into lessons, the will to do so, or the desire to learn how to. Current reform efforts placing an obscene emphasis on standardized tests are expounding the situation
  • With budget cuts across the country putting a strain on the financial resources of districts and schools, decision makers have become fearful of allocating funds to purchase and maintain current infrastructure
  • ...3 more annotations...
  • Many teachers and administrators alike often fear how students can be appropriately assessed in technology-rich learning environments. This fear has been established as a result of a reliance on transitional methods of assessment as the only valid means to measure learning
  • For technology to be not only integrated effectively, but also embraced, a culture needs to be established where teachers and administrators are no longer fearful of giving up a certain amount of control to students. The issue of giving up control seems to always raise the fear level, even amongst many of the best teachers, as schools have been rooted in structures to maintain it at all costs
  • With the integration of technology comes change. With change comes the inevitable need to provide quality professional development. Many educators fear technology as they feel there is not, or will not be, the appropriate level of training to support implementation
  • Roland Gesthuizen on 24 Jul 12
     
    "Even as we are seeing more schools and educators transform the way they teach and learn with technology, many more are not. Technology is often viewed either as a frill or a tool not worth its weight in gold. Opinions vary on the merits of educational technology, but common themes seem to have emerged. Some of the reasons for not embracing technology have to do with several misconceptions revolving around fear."
Debra Why

Education Week Teacher: Redefining Instruction With Technology: Five Essential Steps - 95 views

www.edweek.org/...tln_magiera1.html

education technology ipads

shared by Debra Why on 18 Jul 12 - No Cached
  • This was the wrong approach: To truly change how my classroom worked, I needed a technology-based redefinition of my practice.
  • Break down to rebuild.
  • By setting aside my pre-conceived notions of how my classroom "should" look, sound, and feel, I was able to transform my practice from the ground up.
  • ...9 more annotations...
  • I also asked myself the question: "What can I do with these devices that would be impossible to do without them?" In other words, I was hoping to create new teaching methods rather than just replacing old ones.
  • I redesigned my classroom practice around the goals, with iPads as the infrastructure.
  • Redefine with a goal in mind
  • Get more app for your money.
  • student-creation apps
  • Embrace failure
  • By creating a safe, open environment and by being clear that this endeavor is as foreign to you as it is to them, you encourage risk taking—and greater achievements.
  • Enjoy the results, reflect towards the future. A
  • I saw students become active agents in their own learning—because they now had choices about the methods that worked best for them. Kids who’d professed to hate school were now eager to engage in the classroom. One student wrote in her daily reflection, "[iPads] make me want to come to school every day because I know that Ms. Magiera has a lesson just for me."
  • Debra Why on 18 Jul 12
     
    Info on how to rethink how to use iPads to the best utilization
Elena Gamova

Adaptive Learning Systems - 18 views

www.atp.nist.gov/als.htm

adaptive learning systems

shared by Elena Gamova on 15 Sep 13 - Cached
  • Educational software and systems are not easily usable for many learners and educators, and for that matter present obstacles for educational institutions.
  • The necessary business models and key transactions that enable the missions of knowledge-driven institutions are not yet adapted to computers and distributed systems. Equally problematic: educational networks do not yet offer sufficiently high reliability to become a viable alternative to many educational media, such as desktop systems or traditional classroom techniques.
  • In the current environment, end users will have to wait some time yet until many technological advances such as virtual reality and distributed simulation become preferred tools among trainers and educators.
  • ...1 more annotation...
  • The program emphasizes comprehensive infrastructure solutions that are both flexible and scalable with respect to all fundamental aspects of information network-based instruction. Four key research areas are:
Ryan Ingersoll

Why Online Programs Fail, and 5 Things We Can Do About It - Hybrid Pedagogy - 76 views

www.hybridpedagogy.com/...nd-5-things-we-can-do-about-it

shared by Ryan Ingersoll on 31 Jul 14 - No Cached
  • More and different types of learning and teaching are available in the digital environment. We must convince ourselves that we don’t yet understand digital education so we may open the doors more broadly to innovation and creativity
  • we shouldn’t set off on a cruise, and build the ship as we go
    • Rafael Morales_Gamboa
      Rafael Morales_Gamboa on 31 Jul 14
       
      Why not? I might not be possible in the physical world, but that does not mean it cannot be done in the digital one.
  • Few institutions pay much attention to re-creating these spaces online
    • Rafael Morales_Gamboa
      Rafael Morales_Gamboa on 31 Jul 14
       
      They do not need to. The digital learning space does not have to be like the physical one.
  • ...5 more annotations...
  • What spaces can we build online that aren’t quantified, tracked, scored, graded, assessed, and accredited?
    • Rafael Morales_Gamboa
      Rafael Morales_Gamboa on 31 Jul 14
       
      Are social networking applications you are talking about?
  • What we have is a series of online classes with no real infrastructure to support the work that students do on college campuses outside and between those classes
    • Rafael Morales_Gamboa
      Rafael Morales_Gamboa on 31 Jul 14
       
      In physical schools that work have to be done on campus, because when students leave they become distant from each other. But that does not happen online: students are close together both inside and outside the "campus"; actually, they are simultaneously inside and outside campus.
  • Up to now, online learning has taken little notice of the web upon which it’s suspended
  • Today, the road to access doesn’t necessarily detour through the university, and anyone, of just about any age, can travel it.
    • Rafael Morales_Gamboa
      Rafael Morales_Gamboa on 31 Jul 14
       
      This is, of course, an overstatement, as not everyone is prepared, given their development and living conditions, to take advantage of Internet.
  • We’ve created happy little caskets inside which learning fits too neatly and tidily (like forums, learning management systems, and web conferencing platforms). We’ve timed learning down to the second, developed draconian quality assurance measures, built analytics to track every bit of minutiae, and we’ve championed the stalest, most banal forms of interaction — interaction buried beneath rubrics and quantitative assessment — interaction that looks the same every time in every course with every new set of students.
  • Rafael Morales_Gamboa on 31 Jul 14
     
    A critical view about e-learning as it mostly happens today.
  • Ryan Ingersoll on 22 Jul 15
     
    A critical view about e-learning as it mostly happens today.
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