jueves, 10 de abril de 2014

Disadvantages of Computers in the Classroom

To start the most significant fact that should be stated is that the computer is a tool, and as with any educational tool, from books to crayons, it can be used to enhance the curriculum and promote learning, but it can also be misused and abused. In this essay, I will discuss the disadvantages of having computers in the classrooms due to the misuse and the abuse of this tool.

I found it hard to find research that had been done on this topic because not only is the research on the effectiveness of computers in the classroom scarce but the research that is there is often done by software companies and therefore may be biased. (Emmans 2001). Even though there is no clear-cut answer to the question of a computer being a friend or foe in the classroom, having an unsolvable question of good or bad brings many issues to light.

For example, the fact that much of the software designed for children is appealing to them. If nothing else, it at least holds the children's attention. Though this may seem like a positive characteristic, consider this, just because a television show holds your attention, does it necessarily educate you? The answer to this is simple, maybe some do, but certainly not all do, mostly they are just simply entertaining. This causes me to raise an eyebrow at some, not all, software. As a teacher, one must not use time-fillers, cause a child can watch television or play on a computer at home, but as a teacher, we must educate, and if there is no educational value in the software, what good is it for a teacher?

On the defense for teachers, another reason for computers being a shortcoming is that sometimes the software is not obvious that it is non-educational. This can be a common mistake of any educator, being fooled that a product could be educational when it is merely entertainment software dressed up in an educational costume aimed at these gullible teachers.

According to Cindy C. Emmans (2001), a professor of Educational Technology at Central Washington University, on software in the classroom...

" Often feedback is the key to learning, and computers are appealing because this feedback can be immediate, which is of course a very effective learning tool. Unfortunately, this feedback is not often as effective as it might be, perhaps because it is not easy to return to the original question to try again, or the student must begin at the beginning to review the original content rather then backing up a step or two. In some cases, the feedback for the wrong answers is more appealing than that for the right answer, causing students to try and get the wrong answer simply for the entertainment value".

Gerald W. Bracey sums it up adequately in a journal article called Principal by basically saying that the bells and whistles are all there, but the education is not, because it was not produced by someone who understands how children learn. (1996, p.6).

More arguments in the research area continued in September of 2000, the Alliance for Childhood published a statement against the use of computers in schools. More than 85 experts in various fields including psychiatry, education, and philosophy signed the statement in which calls for a suspension on the promoting introduction of computers into the nation's elementary schools until there is a more careful assessment of their effect (Hafner, 2000). Another influence in opposition to computers in classrooms is that of Jane Healy, an educational psychologist and the author of "Failure to Connect," a book criticizing educational applications of computers. Thomas Crampton interviewed Mrs. Healy and she declared that computers "can hurt children's personal skills, work habits concentration, motivation, (and) the development of social skills" (IHT, October 2000, p. 19).

Another reason that computers in the classroom would prove to be a disadvantage is the availability of computers in the classroom to each individual student. It is rare to find a school that, in each classroom, has a computer supplied for each student. This then brings up the problem of scheduling and rotating the students to the computers available. (Tiene 2001) This begins a whole new ball game in which you are now consuming a lot of time in which could be used for more productive measures rather then scheduling computer time for each student. If this is the case, and only a specific amount of students can be on the computer at one time, then you are dividing your classroom, and not integrating it, as it should be. This causes many difficulties in teaching a whole group instruction, which leads to problems in skill development, since the attention of some students is lacking. (Tiene 2001).

On the Colorado state education web site (2003), I was able to find questions that were asked to teachers regarding computers in their classrooms. The teachers were asked, "What do you find unattractive about teaching in a computer based classroom?" The one teacher commented that, " Students have a tendency to come in a print out their papers at the beginning of class instead of coming into class with a hard copy..." Another teacher said, " Technological difficulty, your whole lesson could be shot for the day if the computer would go down". When the teachers were asked about the difficulties they faced themselves and with the students due to computers in the classroom, they answered, " It is hard to get the students attention when they are on the computers." Another teacher commented, " There are times that I send them to work and instead they are interacting with each other." Another teacher stated her fear of the computer classroom by saying that, " Students are at their own screens, they're in their own little world, and they are not talking to their classmates, sometimes I think that they don't even know half the names of all the people in their class." (Barnes 2003)

I feel that these teachers comments are very important when looking at the issue of computers in the classrooms, because these are the people that actually interact with the children in the classroom, they are not just some random research study by a software company, these people are the real thing, and they see how computers are effecting their classrooms.

Another issue of computers in the classrooms regards the child's health. If a child were to be functioning on a computer for a long interlude of time or with incorrect positioning they will inadvertently obstruct their own health, some problems caused from this include muscular-skeletal injuries and vision problems. (MacArthur & Shneiderman, 1986).

Another issue concerning computer use in classrooms is that a lot of teachers have not been trained to use a computer, and many do not know how. An enormous amount of time would have to be consumed for the teachers to learn both the hardware and the software of the computer. They also would need time to collaborate with other teachers. Time is something that many teachers spend planning lessons and the weekly events of their classroom. The other problem that was just mentioned was the training of the teachers. Some educators do not have local training options available to them. Some do not have the time or money to spend on it. Another issue is that even if a teacher does go through training, there are always unsuspected things that can go wrong with a computer. If a teacher were to base their whole lesson on a computer, and it were to crash, and the teacher just being minimally skilled in using computers, would not be able to fix the system so that they could continue their lesson. (Tiene 2001).Therefore an on-site technology expert would be needed on site at all times in case any of these incidences would happen, and quite frankly I do not think that there are too many school districts looking for another expense.

Another reason for computers being a disadvantage in the classroom is that if the computer is Internet accessible, if this is the case, then the children can be exposed to Internet content that is not appropriate for their age level. They can also be exposed to child predators, which is a huge concern in today's world.

Though this may seem far-fetched it truly is not in an article published on the gurdian angel websitein 2000 states,
"The facts are plain. Children are being targeted, solicited, and made victims by pedophiles. What do the ratios or statistics matter? Isn't even one too many? These predators range from the simple minded closet pedophile who has surfaced because they believe they are safely anonymous behind their account alias, to the highly organized and skilled child pornography rings that operate predominantly off of US soil, behind quick discard web sites, and anonymous re-mailers, pushing their hideous wares for big profits. Have you ever heard of a child being molested or kidnapped in your hometown? Don't you teach your kids to watch for certain things and, not to talk to, or go anywhere with, strangers for just that reason? This is our point. Just as there are real world lessons that you teach your children, there is a necessity to teach them cyber-world lessons. " (Hook, 2000).

To put this quite simply, are you sure that your child is being watched very closely when accessing the Internet at school? It sure would be hard for one teacher to keep a close eye on each individual student in the classroom when they are all accessing the Internet at the same time. Therefore are you, as a parent or a teacher, really quite sure that a computer is necessary to learn in school? I mean, didn't you, the parent or teacher, learn in school without the computer? I agree that learning the latest technology is a necessity, but I do not agree with using computers for classes like mathematics or reading.

To sum it all up, Computers in the classroom lacks research of it being an advantage in the classroom. Computers in the classroom may not provide the students with the proper education that they need if the software being used is not adequate. Computers may not be, depending on the school, made available to each student. The attention of the students is harder to get when they are on the computer. An inexperienced teacher in the technology area may cause many problems in the classroom, and consume valuable time that could be used to educate. Most schools do not provide an on site technician in case a difficulty may arise. The children's health may be affected by long-term use of the computers, and probably the most frightening one is that these children can be exposed to child predators and unfiltered inappropriate content through the web while they are in school and in their classrooms presumed to be receiving their education.

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Computers and Technological Innovations: A Way to Ease Life

Tired of the boring and routine work at the office? Bored with the bountiful paper works? Stressed in filing documents in cabinets and drawers? If so, you are one of the millions of employees who got hooked up with the traditional office operations and records keeping. To ease your burden, you need to use computers and other technological innovations to automate your operation and to ease your work load.

Scientists, manufacturers and companies continue to conduct research to innovate equipment and machines to give relief and comfort to everyday operations and routines, both at home, at school and at work. No matter where you are, what life you have and what work you do, you cannot escape technology. It is anywhere and everywhere you go.

Computers become a way of life for everyone. Majority of us cannot live and feel helpless without them. It cannot be denied that it has become a vital aspect in business, at home and in our personal lives. It enables everyone to communicate with friends, relatives, family members and loved ones despite the distance between them. It helps students in their assignments and research works. It provides comfort in filing and tracking of records, thereby saving time and money. It lets you purchase items via electronic commerce and enables you to pay bills through Internet banking. It makes data analysis fast and easy by a click of a computer mouse. It lets you keep track of your inventory and logistics.

Other technological innovations and their associated significance:

  • Cellular phones and iPhones. Enable users to communicate with colleagues, office mates, friends, family members and loved ones anytime and anywhere.
  • Washing Machines. Let homemakers do their laundry at less time and effort.
  • Photocopiers. Enable students, professionals, employees and ordinary individuals to copy vital documents.
  • Airbags. Can save the lives of both the driver and the passenger during car accidents.
  • Plasma television (TV). Enable you to watch movies, television programs and news at the convenience of your home.
  • Digital cameras. Let you capture important events and precious moments with a click of a button.
  • Hybrid automobiles. Enable users to travel and go places with less gasoline and without the danger of polluting the environment.
  • Magnetic Resonance Imaging. Enable doctors to see the presence to cancer cells and tumor.
  • Nanomedicine. A medical scheme that uses nanorobots to perform biological functions and medical procedures, such as repairing damaged tissues, attacking viruses and cancer cells and cleaning clogged arteries.
  • Laparoscopic surgery. A single incision surgery performed in a patients' navel, reducing complications and hastens recovery period.
  • Closed-circuit television. Used by several companies and organizations to see illegal activities, like robberies, shoplifting, murder, holdup and many more.
  • Automated teller machines. Let you withdraw money anytime and anywhere.
  • Hydroponics. An inexpensive gardening method that gives farmers increased production, controllable conditions and less risks of damage crops.

No matter what innovations you choose and used, it is of utmost importance to use them wisely, efficiently and effectively without harming other people and the environment.

Matthew Hohn enjoys writing for Ssidisplays which sells Multi Touch Touch Screen and projector boxes as well as a host of additional products.

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Latest Technology in Computer Hardware

The rate at which new computer hardware products are arriving in the market is simply mind-boggling. As the technology advances, the size and the price of the devices come down, while the efficiency and capacity increase. The scenario is same in all cases, whether it is about internal components like processor, motherboard, RAM, graphics card, and hard disk or for peripheral accessories like mouse, keyboard, and monitors. Personal computers became popular only before about three decades back. But already there are huge piles of outdated and antique hardware components and devices. This is a tribute to the tremendous rate of development of latest technologies in computer hardware field. Perhaps, the newest entrant into the archeological catalogue of computer peripherals is CRT monitors. The sleek looking LCD monitors are spreading like computer virus.

Data storage devices have attracted considerable attention of the technology developers. New kinds of storage devices such as newer versions of flash memory cards, hard disks using latest technology and disks of ever-increasing capacity are the results of advancement in latest technology in compute hardware. The memory size of the random access memory (RAM) cards is soaring to enable the smooth functioning of graphics animation software packages and streaming video websites. Also, computer motherboards have undergone substantial changes over the years. More and more functions are being added to the motherboard. Also, despite the incredible improvement in performance and functionalities, the price of these components has actually fallen steadily.

The most vital component of a computer is the microprocessor. It is in this field that a battle of developing latest technologies in computer hardware takes place. The pace of development of microprocessor increases as the competition between the major processor chip manufacturing companies, Intel and AMD, intensifies. Both the companies are engaging in a neck and neck competition and continuously outdo each other in introducing new technologies.

In the field of computer peripherals, the latest technology in computer hardware is in developing yet another version of wireless mouse and keyboard. The concept of wireless mouse and keyboard is about a decade old. But the development of these items is still a work in progress. The latest products of wireless mouse and keyboard are said to be highly durable and error free.

Some of the developments in the latest technology in computer hardware are gearing up for changing the present concept of desktop and laptop computers. With new developments making possible the convergence of mobile phone technology and computers, a new breed of fully functional palm-top computers are going to be introduced in near future. With touch screen monitors and without the need for a mouse, these gadgets are likely to become the next big leap in the constantly leaping technological development field.

Candis Reade is an accomplished niche website developer and author. To learn more about Technology in Computer Hardware, please visit Electronics Hardware for current articles and discussions.

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New Computer Technology and Its Everyday Uses

Technology is a broad concept dealing with our knowledge and use of tools and crafts to adapt to and control our environment. Today it is hard to keep up with all the new technology available to us. As a "baby boomer" I find myself behind the times. My children, and in some instances my grandchildren, know more than I do about computer and internet technology. I have decided to explore the world that is available to us through use of the internet and our computers. It is my hope to share what I find.

Recent technological developments, including the printing press, telephone, and internet allow us to interact on a global scale. One way to do this is through Weblogs, better known as "blogs". Most of my friends don't know abouts blogs and neither did I until recently. Now I have created my own blog and am posting regularly to it. I am also reading other blogs and enjoying a new avenue of knowledge and companionship. Imagine my surprise to discover that not only can blogging be educational and entertaining, but it can be used to create income.

My husband works offshore and watches what everyone else wishes to watch on TV. He now watches what he wants on his computer. I found that if you have internet access at home, in a motel room, or even internet satellite service on your RV you can enjoy unlimited programming anywhere. We travel regularly and have found limited TV programming in motel rooms. We won't have to miss our regular program any more. If you have internet access at home, in a motel room, or even internet satellite service on your RV you can enjoy unlimited programming anywhere.

You can find almost anything you want on the internet. You can shop from the comfort of your home and have your products delivered to you front door. My 75 year old mother was remodeling a small house and we needed handicapped accessories. No problem, I found her many items to choose from. My daughters find it much easier and less hectic to Christmas shop on line.

I am a mother of two daughters and one son, with eleven grandchildren. As a "baby boomer" I find myself behind the times. My children, and in some instances my grandchildren, know more than I do about computer and internet technology. I have decided to explore the world that is available to us through use of the internet and our computers. My goal is to become familiar with today's technology and share that information. Follow my progress at http://sarahs-technology-center.blogspot.com/

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From Dots and Dashes To Bits and Qubits! A Startling History of Information Technology

"What Hath God Wrought"... These biblical words in Morse Code were sent by telegraph on the 24th of May 1844. The passage, one of wonderment, marked the beginning of the Information Age. The signal was sent a mere 38-miles between Washington and Baltimore, by overhead wire and made possible by the science of electromagnetism. Partners Samuel Morse and Alfred Vail had on that day affirmed telegraphy's viability and opened the doors of information technology for evermore.

The telegraph by today's standards was a primitive instrument. It simply switched electromagnetic current "on or off," by dot or by dash. Yet it was a leap in technological terms and would play an immediate and important role in personal communications, coordination of the railroad system and be decisive in the US Civil War. President Lincoln was the first Commander-in-Chief to have enjoyed the advantage of daily apprisals of first the maelstrom and later the fortunes leading to the surrender of General Lee at Appomattox.

From Electromagnets to Vacuum Tubes

One hundred years later vacuum tubes had replaced coiled wire magnets and main frame computers filled floors with complex hardware - "Do not fold, spindle or mutilate" warned the cards feeding these advanced processing machines. Still... Even with the progress of the vacuum tube, these systems were basically a "Wax on - Wax off" (a reference to the 1984 Pat Morita movie "Karate Kid") switching device at their heart. While the advancement of information technology had far surpassed anyone's imagination, it was yet to undergo an even more prolific encounter - the transistor!

The Transistor

Thanks to the ingenious efforts of John Bardeen, Walter Brattain and William Shockley (winners of the 1956 Nobel Prize in Physics) the transistor became a practical device in 1947. Without it we would not have the miniaturization of such electronic equipment as radios, calculators and computers. These small-3 wire conductors replaced the bulky-energy hungry vacuum tubes which had come to constrain the growth of electronics. The transistor breathed new life into the still binary switching concept of "On or Off."

During this same time Bell Labs scientist Morris Tanenbaum produced the first silicon transistor on January 26, 1954. The importance of this transition from vacuum tube to transistor to silicon mass-production can only be appreciated from the next segment of this article.

Moore's Law

Moore's law is the observation that, over the history of computing, the number of transistors on integrated circuits doubles in power approximately every two years. And in simpler terms: The capabilities of electronic devices, i.e., Processing speed, memory capacity, sensors and even digital cameras will increase exponentially... Causing technology as well as sociological changes in society.

There are critics that believe Moore's Law comes with limitations. Chiefly that the miniaturization of computational power will one day reach a limit as have other technologies before it. Futurist Ray Kurzweil would disagree. "When that limit is reached technology will leap beyond to a new paradigm," just as it did from electromagnetism to vacuum tubes, to transistors, to desk top computers, to the next technology of...

Quantum Computation

In a world where Newton's Laws have been suspended, a world so unique that it challenges our senses -- our being, where multiple worlds exist. We are beginning to see the universe through the eyes of quantum physics. It is the land of the proverbial butterfly's wing.

Today's computers are still simple binary switches instructed by strings of either a 1 or 0 - a "Wax on or Wax off" state called a "bit". The term bit is a contraction of binary digit. Still not so unlike the telegraph with either a dot or dash.

Quantum computing however, differs from digital computing in that it gives the user the power to represent data as a 0 or 1 singularly, simultaneously or in pairs called a qubits (quantum bits) -- existing in as many as 4 unique states. This opens up the possibilities of advanced computation, neural networking and artificial intelligence.

This is the invisible sub-particle world we live in - albeit inconceivable, yet computational. And that - after electromagnetism, after vacuum tubes, after silicon and transistors, after all that... The question is still posed: What hath God wrought?

Or if you prefer the Zen Koan, "What is the sound of one hand waxing?"

Google Video on Quantum Computing

David Skinner has over 25 years experience in business, management and marketing. He is an often quoted author and sought after public speaker. More examples of David's work, his bio and contact information may be found on his web site http://www.davidskinner.com

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Computers And Technology in the Modern World Versus Living Like a Caveman With No Tech

Some folks out there are really upset with how technology is "ruining their lives" as they say. But is it the technology or is it the people who are allowing the technology that was suppose to make their lives easier making it more distracted, shallow and hurried? What if we had no tech at all and we all lived like cave dwellers? Realize, I only compared modern men with technology to cave men because Gieko did it!

Not long ago, an astute future thinker noted after reading an article; "Is Technology Good or Bad" that some of these modern devices do more harm than good, while others are very good for humanity. Well, indeed, this brings up a good point and if you read "Data Smog" and understand the Unabomber's Manifesto and see his points on this topic, you can understand where our astute thinker is coming from,

Perhaps, we should see technology as "tools" created by men, like the 100th Chimpanzee that used a rock to crack open sea shells for free sushi. Maybe we should see technology as neutral, like money. I like technology, you know like air-conditioners, heaters, ovens, telephones, and airplanes, don't you?

Some of the stuff takes people away from what it is to be human, as if that is noble in and of itself, I wonder? Perhaps, our astute thinker is right, maybe we need to get back to a more holistic lifestyle for humanity. Of course, that really ought to be a choice.

The holistic universe seems fine and humans have most likely forgotten more than they've ever known. The human mind is very powerful and most humans have the genetic potential to tap into it all, but don't perhaps distracted, by yes modern invention and tech devices.

Some day scientists will find a way to use micro chips to convert neuron-electrical impulses into one's and zero's to send thoughts - thought swapping communication over long distances. I'd say human probably already have that capability due to the cells and bacteria that makes us one with a larger system, quantum physics will one day prove that too.

But since, humans do not seem to be able to do this in and of their own will or do not know how, science and technology will find another way. Is that then an alternate genetic path, becoming one with machine, nanotech biotech manipulation of the overall system that we call human? Hard to say, but think on this using your mind?

Lance Winslow enjoys community philanthropy - Lance Winslow likes small business Lance Winslow has also been involved in the Oil Industry; http://www.oilchangeguys.com/aboutus.shtml

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How To Keep Up To Date On Computers And Technology With Articles

Reading articles online, written by people who know what they are talking about, is perhaps the best way to stay up to date on any subject, especially computers and new technology.

With computer components getting faster and more demanding everyday, it's a wonder that anybody ever has an up to date computer. And technology as a whole is moving at such incredible speeds, every day is literally the most advanced human beings have ever been.

So with this in mind, you probably wonder how you can stay completely up to date on it all, while still learning about current technology. The fact is, basically in the field of technology you have to learn and practice at the same time.

How to Find Great Articles on Computers

Using the search engines to find information is something just about everybody does, but usually a search returns somewhat old information and pages with the information you are looking for scattered all over.

The best way to find high quality articles and article directories that have very informative information is to put the word "articles" along with your search term. This way the search results that you get back will most likely be just articles and article directories that have related information to the rest of your search term.

Staying up to Date on Current Technology

While you can use the same method as I stated above to find computer information and articles, you can do the same with technology information. The problem with that though is you can never really be sure the author knows what they are talking about.

Usually at the end of an article there is a resource box with a link to the author's website, but even then it is still hard to tell who knows what they are talking about.

What I do is usually one of two things. I double check what I am reading by searching for the same words on the search engines, and see if other authors say the same thing or not.

You can also use highly popular, but also ever changing, social voting news websites, like Digg or StumbleUpon. Do a search for those websites, and when you visit them you will see that other members like you can vote on information and articles that they know or believe to be true.

While sometimes people can be deceived and false information gets posted, it is much less often then regular websites owned and operated by Joe Anonymous.

So in a nutshell, the best way to stay up to date on computers and technology is to use the search engines, and continue to use websites that you know to be truthful, at least for the most part.

If you are looking for a great article directory, that has a lot of up to date and accurate information on computers and technology, please visit the Computer Customizing Guide article directory [http://www.computer-customizing-guide.com/articles] to subscribe too our RSS feeds and read or submit new articles.

You can visit our article directory at [http://www.computer-customizing-guide.com/articles]

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