Computers Grade Essays Fast ... But Not Always Well
As schools look to cut costs, more are considering using computers to grade students' writing assignments and to provide writing help. The programs can assess large numbers of papers in seconds. David L Ryan/The Boston Globe via Getty Images hide caption
As schools look to cut costs, more are considering using computers to grade students' writing assignments and to provide writing help. The programs can assess large numbers of papers in seconds.David L Ryan/The Boston Globe via Getty Images
Imagine a school where every child gets instant, personalized writing help for a fraction of the cost of hiring a human teacher — and where a computer, not a person, grades a student's essays.
It's not so far-fetched. Some schools around the country are already using computer programs to help teach students to write.
There are two big arguments for automated essay scoring: lower expenses and better test grading. Using computers instead of humans would certainly be cheaper, but not everyone agrees on argument No. 2.
Les Perelman, director of the student writing program at MIT, is among the skeptics. Perelman recently tried out a computer essay grading program made by testing giant Educational Testing Service.
"Of the 12 errors noted in one essay, 11 were incorrect," Perelman says. "There were a few places where I intentionally put in some comma errors and it didn't notice them. In other words, it doesn't work very well."
On a scale of 1 to 6, one of the greatest presidents of the United States was only getting 2s and 3s.
University of Akron's Mark Shermis, on a computer's evaluation of the Gettysburg Address
Perelman says any student who can read can be taught to score very highly on a machine-graded test.
That's because software developers build the computer programs by feeding in thousands of student essays that have already been graded by humans.
Then, by identifying the elements of essays that human graders seem to like, the programs create a model used to grade new essays. If human graders give essays with long sentences high marks, for example, the programs will tend to do so, as well. If human graders like big words, the programs will also, say, "manifest a tantamount predilection for meretricious vocabulary."
So, Perelman says, it's possible for students to score an A on a computer-graded essay simply by combining all the elements of an essay that would be scored highly by a human grader.
Of course, if you know the elements of an A essay and are able to combine them, odds are you're already a pretty good writer.
Mark Shermis, dean of the University of Akron's College of Education, recently co-authored a study of nine different essay-grading computer programs. On shorter writing assignments, Shermis says, the computer programs matched grades from real, live humans up to 85 percent of the time.
But on longer, more complicated responses, the technology didn't do quite as well.
"It will not identify the next great American novelist," Shermis says. "But if what you're trying to do is communicate thoughts and ideas in a very straightforward manner, then the technology is actually a wonderful tool."
But not always. Shermis ran the Gettysburg Address through one of the earlier-generation computer grading programs, one usually used to evaluate the writing abilities of college freshmen.
Suffice it to say, Abe did not ace the test.
"On a scale of 1 to 6, one of the greatest presidents of the United States was only getting 2s and 3s," Shermis says of Lincoln's scores. "We were actually very shocked."
A history professor told Shermis he shouldn't worry; the speech is more famous for its contextthan for the actual words themselves.
Still, school officials trying to cut expenses are intrigued by the promise of scoring thousands of student essays in seconds, without the need to hire human graders.
Jeff Pence, who teaches writing to seventh-graders in a Georgia middle school, is already sold on the idea.
The computer graders he uses give students instant feedback on every draft. Pence says there's no way he and his red teacher's pen could do that. And quicker responses, he says, lead to more writing.
"The quantity drives the quality up," Pence says. "It's kind of the old bicycle thing — the best way to learn how to ride a bicycle is to ride a bicycle. And the best way to get better at writing is to write and receive consistent, timely feedback."
Pence says it would be great to have a couple of dozen real, live human teachers reading every student draft. It would also be nice, he says, if his district found the money to hire those extra teachers. But until then, he's holding on to his computer programs.
A computer is an electronic device capable to receive information (data) as input and give result as output after performing the sequence of operations (variable set of procedural instructions).
Essay on Computer
Find very simple to write and easy to learn essay on computer. Computer is a very high technique invention which everyone must know about and its advantages in life. It is very much liked by kids. So bring some creativity in the education of your kids and children through computer. We have provided below various computer essay in different words limit like 100 words, 150 words, 200 words, 250 words, 300 words and 400 words according to the need and requirement of students.
Computer Essay 1 (100 words)
A computer is a great invention of the modern technology. It is generally a machine which has capability to store large data value in its memory. It works using input (like keyboard) and output (like printer) devices. It is very simple to handle the computer as its functioning is so common that a child can handle it. It is a very reliable device which we can carry with us and use anywhere and anytime. It allows us to make changes in the already stored data as well as store new data. Computer is a new technology which is used in offices, banks, educational institutions, etc.
Computer Essay 2 (150 words)
Computer is a modern tool which has made life very easy and simple. It has capability to complete more than one task in small time. It is able to do work of many human beings alone within less time. It is the utility of highest efficiency. The first computer was a mechanical computer which was created by the Charles Babbage. A computer works successfully using its hardware and fully installed application software. Other accessories of the computer are keyboard, mouse, printer, CPU and UPS.
The data which we put into the computer using device is called input data and device as input device and data which we take outside using printer or other device is called as output data and device as output device. The input data gets changed into the information which can be stored and changed anytime. Computer is very safe tool for data storage which is being used in various fields. We can shop, pay our electricity bill, water bill, video chat, messaging, e-mail messages anywhere in the world and lots of online activities using internet.
Computer Essay 3 (200 words)
Computer is the latest technology which is used almost everywhere. It has made possible to do large amount of works in very small time. It has reduced the man effort in the offices means it gives high level of work output in very small time, less effort, low man power, etc. Now a day, it has become hard to imagine our lives without computer. We can use internet in the computer which gives us lots of required information on any subject in very less time. There are great contributions of the computer in the lives of human being. It is playing big role in every field and helping us every single moment. Old generations of the computer were less effective with less functions but new generations of it are amazing with high capacity, easy to handle and more functions.
Future generations of the computer would be more effective and lots of functioning. It has made our life easier. Using this we can easily learn anything and enhance our skill. We can get any information about any service or product or other thing within no time. We can buy anything online using computer and internet and get free delivery. It is very useful for the preparation of project work of any student reading in any class.
Computer Essay 4 (250 words)
Computer is the wonderful and mastermind gift of the science to the whole human fraternity. It can be used to do any kind of works. It is very easy to handle by anyone and takes very less time to learn. Because of its easiness and high work efficiency, it is being used in many fields like offices, banks, hotels, educational institutions, shops, hospitals, commercial places, schools, colleges, training institutes, military establishments, military, industries, etc. Many people buy laptop or desktop for their kids to learn about required things in their schools or playing computerized video-games, etc.
Computer is a big dictionary and large storage device which we use to save any type of large amount of data like information, study materials, projects, photos, images, video, audio, songs, clips, games, and many more. It is an electronic machine which is able to calculate and solve big problems. It helps in enhancing our skill level and get information easily. It is very simple data based machine. It provides facility of many other tools like paint tool, text tool, etc which are very beneficial for the kids, children and students to use it more effectively.
We can use it for any big or small mathematical calculations very accurately. It is used to forecast the information about weather, in printing books, news papers, diagnosing diseases, etc. It is used to make online railway reservations, ticket booking, hotel or restaurant booking from any place all over the world. It is used by MNC companies for the accounting purpose, invoicing, pay rolls, stock control, etc.
Computer Essay 5 (300 words)
In the modern world of technological advancement, computer is the amazing gift given by the science to us. It has changed the living style and standard of the people. No one can imagine the life without computer as it has made lots of works so easy within less time. Computer is playing great role in the development of the developing countries. It is not only a storage or processing device but it is like an angel which can make anything possible. By many people it is used as the source of entertainment and communication.
We can get connected to our friends, relatives, parents or others in no time through the use of video chat or email. Using internet in the computer we can search and retrieve vast information on any subject useful for our education or project work. It is very safe and easy for the business transactions purposes through banks to any accounts. By providing the facility of data storage it has lessen the paper works in the governmental and non-governmental offices or colleges. One can save lots of time and effort by online shopping, paying bill, etc by being at home through the computer.
Computer education has been made compulsory by the government of India in all the schools, colleges and other educational institutions for enhancing the skill level as well as the easiness of the students in their professional life. Learning computer has become very essential in all the modern-day jobs. In the higher education there are subjects like network administration, hardware maintenance, software installation, etc for the enhancement of skill.
Computer Essay 6 (400 words)
Invention of the computer has made many dreams come true even we cannot imagine our lives without computer. Generally computer is a device used for many purposes like information storage, email, messaging, software programming, calculation, data processing and many more. Desktop computer need a CPU, an UPS, a keyboard and a mouse for well functioning however laptop does not need anything to add outside as it is included with all inside. Computer is an electronic device having big memory which can save any data value. We are living in the advanced world of computer in the 21st century.
Earlier the functioning of the old generation computer was very limited but new generation computers are amazing with lots of functioning. Charles Babbage had invented the first mechanical computer which was totally different from the modern day computer. The aim of computer invention was to create a machine which can perform very fast mathematical calculations. During the World War II it was used to locate and estimate the direction and speed of weapons of the enemies. Modern day computers are available with the artificial Intelligence technology to helps us in every sector of life.
New generation computer are being highly advanced means smaller, lighter, speedier and more powerful. Now a day, it is running in almost all walks of life like weather forecasting, guidance of spacecraft, examinations, education, shopping, traffic control, high level programming, automation in banks, railway ticket booking, playing games, medical sector, machinery operations, job opening, business, crime detection etc. It is the backbone of the Information Technology including with the internet and proved that nothing is impossible today. If there are positive effects of the computer on the life of human being, it also negatively affected the human lives such as rise in the Cyber crime, pornographic websites can be accessed by kids or younger and many more however using some preventive measures we can be safe from its negative effects.
The whole human fraternity is becoming highly dependent on the computer technology; no one can imagine life without computer. As, it has spread its wings so deeply in every area and made people used of it. It is very beneficial for the students of any class. They can use it to prepare their projects, learn poems, read different stories, download notes for exam preparations, collect large information within seconds, learn about painting, drawing, etc. It enhances the professional skills of the students and helps in getting job easily.