matt ryall’s weblog

Building up the web since 2002.

Site

Portrait of Matt Ryall

 

About me

Feed icon Articles feed

Feed icon Comments feed

Archive

Photography

Europe trip 2004

More photos

Software

NoteWiki

Other Pages

About Me

Uni timetable

SysProg Journal

The List

Education and the web

26 August 2008

My parents always used to tell me: I could achieve anything if I put my mind to it. The funny thing is, with the web at your fingertips, often you don’t need to put your mind to work to achieve something. You can just type “Venezuela president” into your favourite search engine, and find out that Hugo Chávez is currently Venezuela’s president without exercising any mental effort.

Is this a good thing? I think so. Human history is full of inventions that let people think less about some things so they can concentrate on others. The development of irrigation in Egypt meant people could work less on the farm, and instead spend more time building their pharoah’s burial chamber or collecting scrolls. The printing press meant thousands of monks no longer had to spend years writing copies of the Bible. Instead they could spend more time thinking about what the book said, or studying the pea plants in the garden.

At each point, our civilisation has taken leaps forward by saving time on trivial tasks in order to spend time doing something more worthwhile. The internet, and the web in particular, do the same for the knowledge.

The web has two key parts that have led to its revolution in how we look up information:

  1. The web has information on an enormous scale, written by people all over the world. It has no physical limits like a library, nor does its content deteriorate over time. There is no reason it will not continue to expand indefinitely.
  2. Search engines can give you the relevant information whenever you need it. With an effective index of the entire contents of this changing global library, you have a way to locate information amongst all the documents that is far superior to any cataloging technology that came before.

Rather than scouring your local library for a few books which cover the obscure topic you’re interested in, you can type a few words into a search engine and get the information from your living room. There’s no longer a need for authors to publish their work and distribute it physically: the web allows all the authors to make their thoughts available to interested readers. Popular search engines rank the available documents based on how many people refer to them, providing a peer review system that works to promote useful information to people looking for it. Like printed books did over the last few centuries, the web has spread to almost every home and office in the developed world, and will soon be everywhere in developing countries too.

Given this revolution in communication, knowledge and research, it’s quite alarming that several important leaders in Australian education consider rote learning to be an essential part of education, and a reason why internet use should not be an integral part of assessments:

Barbara Stone, who heads the Association of Heads of Independent Schools of Australia, welcomed … exploring new technologies, but said there would always be a place for rote learning and exams.

Jenny Allum, the principal of SCEGGS Darlinghurst, said there was scope for the type of assessment tasks [where students] synthesise information from different sources and judge their validity. However, students would always be required to demonstrate their level of knowledge without access to technologies.

This was in response to PLC in Croydon trialling phone and internet use during exams.

In my opinion, rote learning is exactly the wrong outcome of education and exams. Educational assessments are there to assess knowledge and understanding, comprehension and creativity. Rote learning shows none of these abilities, particularly not knowledge.

If students go into a maths exam knowing the quadratic formula by memory but not understanding what it means or how to derive it, I think their education has failed. The purpose of teaching the quadratic formula isn’t so that students can sit in a room and solve quadratic equations as fast as possible. It’s to teach them about mathematics and increase their understanding of how to solve problems in a general sense.

The same principle applies to knowledge in general. If I don’t know something that I need to know for my work, I look it up. While it helps to keep frequently used information in my head, the benefit of having a worldwide network of information is that I can concentrate more on the task at hand. Rather than trying to perfectly recall every aspect of the Java programming language, I remember the key points and look up the details.

There is an excellent talk from the TED conference which covers a closely related topic, Sir Ken Robinson: Do schools kill creativity? Robinson is an expert on promoting creativity in education and organisations. He feels that our current education system teaches students to avoid failure at all costs, effectively killing their creativity.

With education leaders that see rote learning and exams without access to modern tools as the future of education, I can certainly see his point.

 
Posted by Joe at 2008-08-26 21:33:52
To some extend, yes, it is true that rote learning isn’t helpful. But there does need to be some degree of rote learning - if you cannot master the quadratic equation (by knowing how to use it like you would the times tables), you cannot proceed to a higher level of understanding that requires the quadratic equation as a basic building block.

Though I m not disagreeing with the fact that perhaps way too much rote learning is being tested, and none for creativity or intuitive understanding.
 
Posted by Samuel Le Berrigaud at 2008-08-28 11:04:30
Whilst I mostly agree with your points. I also agree with Joe.

In a field such as mathematics knowing theorems and their demonstration by heart helps dramatically solve more complex problems.

The idea is that if you don’t know the basics (which can be fairly complex theorems) you will not have any idea of when to apply them. And it is something that is VERY difficult to look up. Either you know it or you don’t.

I don’t say being able to search or look up things effectively is not a quality. It should be taught and worked on.
However learning and memorising is as important and has to be taught as well.

One should know (by heart) how to solve quadratic equations (and many more theorems, equations, etc.) before undertaking “more complex: mathematics problem.
 
Posted by Ryan at 2008-11-12 05:28:36
I think you guys have missed the point that matt is trying to make.

“it helps to keep frequently used information in my head”

If you are going to be performing complex calculus, it is impossible to avoid memorization.

The quadratic equation means nothing if you don’t know how to get there. Fortunately, as a consequence of understanding how something works it becomes committed to memory. Rote learning promotes the opposite -> commit to memory, THEN figure out WHY… and so many people stop learning once they memorize and haven’t yet understood.

And over time, if you do not practice something, it will fade from memory… naturally. But if you once had a conceptual understanding of WHY something works, then the memorization is moot.

I don’t remember all of the geometric equations from high school, but when I learned them I understood WHY they worked. Now, if I need to solve a problem involving geometry, I can simply look up the equation and start problem solving in a very logical manner.
 

Comments on this article have been closed.