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djplaner

digital divide continues « elketeaches - 1 views

elketeaches.wordpress.com/...trough-of-disillusionment

teacher digitaldivide reasons

shared by djplaner on 25 Aug 14 - No Cached
  • djplaner on 25 Aug 14
     
    Brisbane-based high school teacher and ex-EDC3100 student reflects on the "digital divide" that exists its origins and a way forward. Has direct implications for you, what do you think of it?
djplaner

The Electronic Digital Computer - How It Started, How It Works and What It Does - NYTim... - 7 views

www.nytimes.com/...it-works-and-what-it-does.html

digital

shared by djplaner on 27 Feb 16 - No Cached
  • Whether it is solving a differential equation on the motion of charged particles or keeping track of a nuts-and-bolts inventory, the digital computer functions fundamentally as a numerical transformer of coded information. It takes sets of numbers, processes them as directed and provides another number or set of numbers as a result
  • Among the characteristics that make it different are the flexibility with which it can be adapted generally to logical operations, the blinding speed with which it can execute instructions that are stored within its memory, and its built-in capacity to carry out these instructions in sequence automatically and to alter them according to a prescribed plan.
  • Despite its size and complexity, a computer achieves its results by doing a relatively few basic things. It can add two numbers, multiply them, subtract one from the other or divide one by the other. It also can move or rearrange numbers and, among other things, compare two values and then take some pre-determined action in accordance with what it finds.
  • ...7 more annotations...
  • For all its transistor chips, magnetic cores, printed circuits, wires, lights and buttons, the computer must be told what to do and how
    • djplaner
      djplaner on 27 Feb 16
       
      Increasingly there are algorithms that mean that the computer doesn't need to be told what to do. It is capable of learning. For example, in the past computers couldn't drive cars on the road. To do this the computer would have to be told how to do everything - accelerate, turn, how far to turn etc. The new algorithms are such that a computer (actually probably many computers) can drive a car without being told what to do (not a perfect analogy, but hopefully useful)
  • If the data put into the machine are wrong, the machine will give the wrong answer
  • Developing the software is a very expensive enterprise and frequently more troublesome than designing the actual "hardware
  • o specify 60,000 instructions
    • djplaner
      djplaner on 27 Feb 16
       
      Facebook reportedly has at least 62 million lines of code (instructions) to make all of its features work.
  • This requires an input facility that converts any symbols used outside the machine (numerical, alphabetical or otherwise) into the proper internal code used by the machine to represent those symbols. Generally, the internal machine code is based on the two numerical elements 0 and 1
    • djplaner
      djplaner on 27 Feb 16
       
      This applies to any data that an ICT uses - pictures, sound etc. It has to be converted into 0s and 1s (binary digits) that software can then manipulate
  • The 0's and 1's of binary notation represent the information processed by the computer, but they do not appear to the machine in that form. They are embodied in the ups and downs of electrical pulses and the settings of electronic switches inside the machine
  • The computational requirements are handled by the computer’s arithmetic-logic unit. Its physical parts include various registers, comparators, adders, and other "logic circuits."
    • djplaner
      djplaner on 27 Feb 16
       
      This is the bit of the ICT that does the manipulation. Everything you do to manipulate data (e.g. apply Instagram filters) is reduced down to operations that an arithmetic-logic unit (ALU) - or similar - can perform
  • djplaner on 27 Feb 16
     
    An "ancient" (1967) explanation of how a digital computer works - including some history.
Bec Twidale

doi:10.1016/j.compedu.2008.04.002 - Examining_the_digital_divide_in_K-12_public_schools... - 0 views

late-dpedago.urv.cat/...ide_in_K-12_public_schools.pdf

education learningNow digital divide schools

shared by Bec Twidale on 04 Apr 13 - No Cached
  • Bec Twidale on 04 Apr 13
     
    This is a comprehensive study which I found while researching for another subject. It illustrates how teacher ICT pedagogy can impact upon the outcomes for students.
jac19701212

Cameron et al (2011) ICT literacy and the second digital divide - 0 views

ro.uow.edu.au/...viewcontent.cgi

EDC3100A2 EDC3100 references ICT in the classroom

shared by jac19701212 on 11 May 16 - No Cached
    • jac19701212
      jac19701212 on 11 May 16
       
      2011
  • jac19701212 on 11 May 16
     
    Possibly a good reference on ICT in the classroom and socioeconomics
christinepeterson66

! ! ! ! 7 ! ! ! ! TechKnowLogia , November/December, 1999 © Knowledge Enterpr... - 0 views

www.techknowlogia.com/...36.pdf

shared by christinepeterson66 on 03 Aug 15 - No Cached
  • Second, there are profound concerns now about the gapsopening up between the ICT haves and have-nots, betweenthose who reinforce their access to, and use of, ICT ineducation by what they have and do at home, and those whoenjoy little of either.
  • More and more people are “knowledgeworkers”. Development competitive edge, whether it be forthe individual, the enterprise, the region or the country,
  • recognition ofthe key role of learning throughout the life span to meet awide set of ambitious policy and personal objectives.
  • ...14 more annotations...
  • digital divide may become everybit as profound as earlier forms of rigid social and educationselection.
  • ICT in EducationWhy Are We Interested? What Is at Stake?Why Are We Interested? What Is at Stake?Why Are We Interested? What Is at Stake?Why Are W
  • Whether ICT willlive up to the many far-reaching educational promises beingtouted depends enormously on how it is used in practice. Itdoes not represent a technical solution to long-standingchallenges
  • Generally, ourcultures become increasingly technological cultures: athome, in the community, at work, and - importan
  • depends increasingly on how knowledge is used and howexpertise is deployed.
  • in education.
  • Globalisation offers considerable opportunities
  • Students can dialogue with their counterparts across theglobe. Teachers can create networks and be members ofprofessional teams drawn from far and wide, rather than feeltrapped within the boundaries of the single classroom or eventhe single school.
  • Can we tolerate asituation where Education might fall increasingly behind soas to become out of step with these other characteristics ofcontemporary life?
  • not difficult to see why ICT becomes so important inthis context. The search is on for flexible, individualisedforms of learning and accreditation suitable to the broadlifelong learning agenda, often outside institutional walls -the promise of ICT here is obvious.
  • there is a world of difference between the “knowledge”society and the “information” society, between knowledgeitself and information.
  • Putting computers in classrooms and wiring upschools does not of itself create exciting new learningsituations that are about changing the ethos of classroomsand the culture of institutions. It is on this latter point thatthe CERI case studies will focus
  • New sources of learning materials drawnfrom right around the world are accessible via the Internet
  • information may evenmake us less knowledgeable if we become overloaded bydata and instant communication.
  • christinepeterson66 on 03 Aug 15
     
    Although an older article it still has many relevant ideas for ICT today
  • christinepeterson66 on 03 Aug 15
     
    Although an older article it still has many relevant ideas for ICT today
Suzanne Usher

Growing Up Digital, Wired for Distraction - NYTimes.com - 0 views

www.nytimes.com/...21brain.html

shared by Suzanne Usher on 09 Sep 15 - No Cached
  • Research also shows that students often juggle homework and entertainment.
  • At Woodside, as elsewhere, students’ use of technology is not uniform. Mr. Reilly, the principal, says their choices tend to reflect their personalities.
  • The technology has created on campuses a new set of social types — not the thespian and the jock but the texter and gamer, Facebook addict and YouTube potato. “The technology amplifies whoever you are,” Mr. Reilly says.
  • ...5 more annotations...
  • “Downtime is to the brain what sleep is to the body,” said Dr. Rich of Harvard Medical School. “But kids are in a constant mode of stimulation.”
  • “The headline is: bring back boredom,” added Dr. Rich, who last month gave a speech to the American Academy of Pediatrics entitled, “Finding Huck Finn: Reclaiming Childhood from the River of Electronic Screens.”
  • Dr. Rich said in an interview that he was not suggesting young people should toss out their devices, but rather that they embrace a more balanced approach to what he said were powerful tools necessary to compete and succeed in modern life.
  • “Today mixing music, tomorrow sound waves and physics,” he says. And he thinks the key is that they love not just the music but getting their hands on the technology. “We’re meeting them on their turf.”
  • Teachers at Woodside commonly blame technology for students’ struggles to concentrate, but they are divided over whether embracing computers is the right solution.
  • Suzanne Usher on 09 Sep 15
     
    A rather long but in-depth article about the double-edged sword of technology in schools. A very interesting read about teaching effective use of technology, and the importance of balance in our lives. 
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