Sunday, 30 December 2007

Problem-based : Role Play Simulation

Is role play simulation (RPS) a form of problem-based learning (PBL)?

Both starts with considering a problem situation and try to provide an authentic learning experience to the players/students.

PBL typically has ONE problem (although it may be complex and involve several steps) to solve and it is also typical that there is ONE best solution. ALL learners are expected to solve the same problem.

RPS presents a complex situation, with multiple (conflicting) stakeholder interests. There is typically NO single correct solution. Students play our the situation in the sole of the roles (each role may represent one or more stakeholder interests). The game goal can change as the simulation progress (indicating either the result of the learning experience or the need to adapt to different strategy).

PBL does not finish until a solution is found. RPS focuses more on the process and it is normal to end a RPS without reaching a solution. (For example, Andrew Vincent's Middle East Political Simulation can have an end as it reflects the real life. History will not stop!)

Some RPS do NOT have any embedded problem. While the simulation designer may create a scenario with a compelling kick-start episode, the kick-start episode not necessarily represents the actual problem/issue that the RPS has been designed to 'teach'. Mary Noggle's "Scarlet Letter Simulation' for American Literature is designed to give the students a "stage' to experience the life at the Puritan era. The kick-start episode is just a start and there is no obvious problem for the players to solve.

Both PBL and RPS are not designed for transfer of information, they act as motivator for students to seek out and understand information necessary for solving the problem (PBL) or handling the situation/issue (RPS). The design motivation is the same.

Thursday, 20 December 2007

Science Project for the holiday



What you will need:
a plate
full cream milk
food colours
detergent

An improved procedure [source]

1. Pour some full cream milk into a dinner plate
2. Squeeze some drops of food dye into the milk (one colour on one side, other colour on other side)
3. Add a drop of detergent onto the edge of the plate so it runs down into the milk
4. The colours begin swirling like a psychadelic pattern
5. You can add more detergent if the motion stops


Explanation [The explanation in the above video is incorrect]
Like milk itself, this classic experiment is actually quite complicated. Milk is a suspension of tiny fat globules (about 4% by volume) in water, plus a whole range of proteins, sugar (lactose) and nutrients like calcium. Detergent is a form of surfactant (short for surface active agent) - individual detergent molecules can bind with both water and oil.

The swirling effect in milk is probably driven by the detergent molecules racing around and coating the fat globules. As the detergent molecules are "consumed" by the fat, they create currents. You'll notice colours from the opposite edge of the plate appearing near the detergent and then shooting across the surface.

Friday, 14 December 2007

9-yr Old Review of XO laptop

BBC reporter brought back an XO laptop and gave it to his 9-year old son for a review.

With no help from his Dad, he has learned far more about computers than he knew a couple of weeks ago, and the XO appears to be a more creative tool than the games consoles which occupy rather too much of his time.


Frankly, at the price of a game console (for 2, one is denoted to the needy), everyone should consider buying XO laptop to give to their children - as christmas present perhaps while helping the kids in the under-developed countries.

Wednesday, 12 December 2007

Season Greeting

To all my readers and friends:

Wishing you all an

Awesome Lively Brilliant Entertaining Rewarding Terrific

holiday

Tuesday, 11 December 2007

Yahoo! Answers: Teachers' Nightmare or Blessing?

From Slate:

The blockbuster success of Yahoo! Answers is all the more surprising once you spend a few days using the site. While Answers is a valuable window into how people look for information online, it looks like a complete disaster as a traditional reference tool. It encourages bad research habits, rewards people who post things that aren't true, and frequently labels factual errors as correct information. It's every middle-school teacher's worst nightmare about the Web.


This highlight the need to enable our students to be able to distinguish between correct and accurate information from false, incorrect or deceptive information. Teachers are no longer the gate-keeper of information. Instead, teachers should aim to help students develop critical analytical skill to handle the vast amount of information available.

Instead of asking students to provide information to some traditional essay type paper, why can't we ask the students to identify incorrect or misleading information from sources such as Yahoo!Answers. Is it a much more valid exercise?

Yahoo!Answers may be a nightmare for the librarians, for the creative teachers, it may be a blessing - a prefect opportunity to let students exercise their critical and analytical skills in processing information.

Thursday, 6 December 2007

Review of XO laptop

XO laptop, aka $100 laptop which is now costing some $180, is reviewed by David Pogue at The New York Times.

Hey, XO may be a potential ebook reader killer!

Monday, 3 December 2007

EnRoLE network members at ASCILITE Singapore 2007

Congratulations and thanks to EnRoLE network members representing the online role play community at  ASCILITE Singapore 2007


Workshop: Online role play: What it means for learners, developers and educators Ann Davenport and Judi Baron The University of Adelaide


Papers presented in Online Role Play Symposium :



Davenport, A. & Baron, J. Meeting the 21st century challenge: The situational learning initiative at U Adelaide

Lambert, S. & Macdonald, D. Reuse of a role play for new university teachers

Devonshire, E. Peer review: A process of EnRoLE(ing) as a reuser

Roberts, A.G. Beyond a participation focus

Leigh, E., Meyers, W. & Rosser, E. Learning design discussions: A conversation tool

Cross posted to EnRoLE

Sunday, 2 December 2007

How does Richard Dawkins gain the respect of John Grahm-Cumming

In John Grahm-Cumming's post title Double-checking Dawkins, John double-checked one sentence written by Richard Dawkins in The Blind Watchmaker. After some research, John found out that in 1986 when Richard was busy writing the book on an Apple ][, Richard has actually spent time to poke around inside his computer's ROM.

This is a respect well-deserved. If Richard has been so careful to make sure a minor fact in his book is correct, I have faith that the rest of the facts would have been more than double-checked. My salute to Richard Dawkins!

Friday, 30 November 2007

The Power of Mush-up

The following three youTube videos are based on the same song. Which one you think is better?

Here are my choices.

Place 3:


Place 2:


and the Winner:


Do you agree?

Here are two other based on different tunes. For those who have lived in Hong Kong, the tunes in the next will be very familar.



Thursday, 29 November 2007

Use Google as Your Own P2P Network



More than just teach me how to Google as my own P2P network, I also learnt a few tricks as well.

1. intitle: in google search
2. that a period (.) in the search keyword stands for ., _ or space
3. making a bookmarklet (for firefox)

cool!

Monday, 19 November 2007

The Unique Effects of Including History in College Algebra

via Scout Report:

A team of mathematicians at Black Hills State University {...} decided to investigate what the effects of including historical modules in college algebra might be in regards to students' understanding and mathematical communication.


The result - 'Over the last three years at BHSU, great strides have been made in improving student outcomes in College Algebra with the inclusion of history in the course.':
1. increase in following enrolling (triagonometry) - 5 students in 2003 and 2004 to 20 students in 2007
2. significant improvement on test problems where mathematical vocabulary and notation have created difficulty for students in the past.
3. 10% increase in the College Algebra passing rate since 2005 has come since the addition of the historical modules

The faculty feels that including historical development of mathematics is of key importance and believe that the full benefits of history inclusion have yet to be reached.

Sunday, 18 November 2007

Zeitgeist - the greatest lie ever told

Here are some comments about Zeitgeist - The movie from the post.

1. use cheap graphic effects with bad rendering and metaphors

2.

loosely plagiarized version of the God Who Wasn’t There, complete with much of the same archive footage. The premise is that Christianity is based upon previous religions. Fair enough, apart from the plagiarism


3.
usually means nothing and is patently false but incredibly seductive


Do they qualify as triangulation [see Where is the truth]?

The post coined FEBL (Fucking Entertaining Big Lie). I would add FEBLBP - FEBL Blog post!

Wednesday, 14 November 2007

Where is the truth?

In a comment left to Zeitgeist - The Movie, my reader asks

Ok, I understand that I shouldn't take this film as gospel and I need to find the answers for myself, but where? Wikipedia is apparently a joke. The internet is full of false information, and after watching this video I don't know if I can trust history books anymore. If we are in fact being lied to, then what resources exist that I can actually trust? I'm feeling very cynical about this. Can anyone ever really know the truth?


Good question. Where can we find the truth?

Different people will have different answers to this question. To me, where is only one way: Triangulation from multiple independent sources.

For scientific facts, If I were doing science, I would repeat the experiment myself and verify to my own satisfaction that the outcome is really as described. Unfortunately, under most circumstances, not everyone has the resource to repeat an experiment. The second best would be find other data of similar experiments and verify the data and calculation to see if the same conclusion can be drawn.

For historical accounts, such as 9/11, again triangulation from multiple independent sources. Some sources will have more weight than others, for example those first person account IMMEDIATELY after the event, those TV interviews on that terrible day. Other important things to look for are minor details - details that rehearsed versions will not cover.

By now, I have forgotten most of "Zeitgeist - The Movie", however there are a number of questions still remain in my mind which I don't have a satisfactory answer:

1. How to explain the claim that multiple explosions were heard by people escaping from the collapsing towers on that day. These people escaping from the falling towers did not have any motivation to tell any lie. They were saying what they felt/heard. May be the "explosions" were floors hitting one another. But the speed of collapse (at free falling speed) could not support floor hitting each other.
2. How BBC could have reported the collapse of building 7 BEFORE the building had actually collapsed? Millions of people would have seen that news (and there are plenty of that video on the web) and none have come forward to claim that that news was fake. So, how can we explain that?
3. I remotely remember I saw a photo of ground zero showing huge steel column with a clean skewed cut. If my memory of that photo is correct, how can we explain that clean cut would be caused by burning of airline fuel?

Back to the main issue of this post: Where can we find the truth? The answer will not come from those with vested interest. We should be looking at elsewhere, from sources with NO motivation to lie. We should forget about the theory and look for evidence and form a theory for ourselves.

Monday, 5 November 2007

Monkey keeps a pet cat


This monkey in a zoo is keeping a pet cat. Enjoy!

Saturday, 3 November 2007

Free online citation tool - Zotero

from the website:

is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources.


Look like I will be putting proper citation in future blog posts more.

Friday, 2 November 2007

Same Issue, different viewpoints

Shanghaiist has posted an interesting article: Made in China: Australia's Channel 7 vs. Al-Jazeera. Two youtube videos side by side, one by Australia's Channel 7 and other by Al-Jazeera.

Australia's Channel 7:


Al-Jazeera


I learn at least the following after viewing both videos.

1. While the Australian are complaining about the quality of products made in China, we must remember that it is the business that have created the issue in the first place. The workers who painted the toy with lead-based paint are at greater risk than the children who may play with the toy. If we are to lay blame, we should catch those who profiteering.

2. China has 1/4 of the world population. The sweatshop is not limited to those within the geographical borders.

3. Extending the issue, China is only one of the developing countries. As she progresses, she will definitely move out of the "sweatshop" era. However, there are many more under-developed countries. Would we, in the affluent countries, help these people?

Watch this as well:


and one of comment said it well:

Therefore, please, kids, China is not the point here. The point is Wal Mart, Capitalism, Globalization.
It is just happened that Wal Mart has found china to be the most cost effective place to produce its products at this moment. Tomorrow there will be other place, such as India or South Africa, even more cost-effective tha China.

Tuesday, 30 October 2007

When Wikipedia Is the Assignment

via OLDaily

The use of wikipedia as an assignment should (and *will* as more teachers understand the value of doing so) definitely receive great support and wide appreciation. The assignment suggested by the article has the following advantages:
1. a real introduction to the community of practice the students are aspired to.
2. a solid contribution to the broader community by the work done by the students.
3. a good motivator for students - the work is REAL and is appreciated by many.

I believe there is ground of improvement too.

Not all academic work and progress are made in a big step. In fact, small steps are the norm. As students begin participation of their chosen community of practice, we should encourage them to take part and contribute in smaller steps. Instead of asking students to submit a whole article (and potentially creating the disappointment of being merged or deleted by the wikipedia community), an equally valuable contribution would be to make positive improvements to existing articles.

If the weighting of the assignment is 40%, students can be asked to make 40 improvements to a broad range of relevant articles (of their own choosing preferably). If the improvement survives after a given time interval (depending on the revision cycle of the article), the point is awarded. Those who made contributions which do not survive the wikipedia review process, they may be given an opportunity by making another improvement to another article etc (time permitting, of course under the current "fixed time" slotted school system).

This change will help to cover a wider range of topics too.

Sunday, 21 October 2007

Sketch gets student, 7, school suspension

I am seriously troubled by this story.

7 year old boy suspended from the Dennis Township schools for a stick figure drawing he created depicting one figure shooting another figure with a gun or water pistol.


1. School is a place for learning, ie making mistakes and learn from the mistake with little consequence *outside* the learning environment, ie the school. Suspension is hardly an educational device. You cannot educate people by denying the opportunity to educate them.
2. The mother re-confirmed the kid that he was NOT in trouble. But at the same time, the power of suspension as an educational device (which is wrong, but it seems that some people believe that it has) will be gone by equating suspension to "NOT in trouble"!
3. As far as I know, Americans glorify weapons culturally (Top Gun is a great example). How can we expect a 7-year old not to be fascinated by gun!
4. "Zero-tolerance policy for guns" applied to drawing (a form of expression). On the same token, we should also apply to the more common form of expression - language. The word "GUN" should be banned in school as well. Then the policy should read "Zero-tolerance policy for xxx" to be politically correct! Hey, isn't USA as the first amendment about "freedom of speech"

Monday, 15 October 2007

Airline food

For those who fly to conferences everyday and worry about what is put into your body, you may like to check out this web site before you book your next flight.

Students say...

200 students collaborated on ONE online document to bring us this 5-minute message (via Couros Blog)

Saturday, 13 October 2007

The Ten Habits of Highly Effective Brains

Some key points:

"Use It or Lose It"

the brain only weighs 2% of body mass but consumes over 20% of the oxygen and nutrients

Practice positive, future-oriented thoughts until they become your default mindset and you look forward to every hansgrohe-downpour-air-royale-14in-shower.jpgnew day in a constructive way.

The point of having a brain is precisely to learn and to adapt to challenging new environments.

Monday, 8 October 2007

The Physics Behind Four Amazing Demonstrations

In my first lesson to a class I have not taught before, I liked to hang a large metal ball in the middle of the teacher's area at about head high. As I walked into the class after the students have settled in, I deliberately walked pass the hanging ball, pull it close to my face to the other end of the room. I would release the ball and start to greet the students.

I can assure you that the students will not be looking at you. Instead they will be watching the ball as it swang to the other side of the room and came back to your face looking like to hit you soon.

As long as you keep steady, the ball will never hit you. But the dramatic effect will sure to hold your students attention to you for the rest of the year.

Here are 4 other dramatic demonstrations from David G. Willey.

Let's make Physics interesting, to the students!

Tuesday, 25 September 2007

New Math: Equations for Living


Book links: Amazon and Powells

Friday, 21 September 2007

New Blog on Virtual Worlds & Learning: Pop.Cosmo

As the time of writing, this new blog has 4 posts.

From the first post:

This site has been created so that we might be able to share our research findings more quickly and efficiently with a broader audience than academic print journals sometimes allow.


I look forward to reading some interesting research findings from this.

Wednesday, 19 September 2007

Don't tell me you sell 'learning'

I totally agree.

What learning is NOT is a product. It can NOT be shrink-wrapped. It can NOT be updated to version 1.2. It does NOT rely on a particular OS or even give a crap about what version of the Web we happen to on.


I agree we should encourage semantic accuracy. Start to say
Sell training. Sell systems that manage training or resources. Sell hardware or software but don't tell me you sell 'learning'


Unfortunately, a lot of money in elearning comes from corporate training (or big system sold to education institutes) and everyone in the market is chasing after the money. LMS is a good example. The correct term should be "Learner management system". But it does not sound as good as "Learning" management system. So the marketing people decides to use the latter - which is absolutely abuse of language.

Since when we started hearing about ROI in training - when big business (and the managers who supported the buying of training) needs to justify the cost to their boss who has no idea of what is learning. ROI is coined and given numbers - artificial numbers.

If we want to continue to sell to business for their training dollars, unfortunately, the word "learning" will coninue to be abused.

Monday, 17 September 2007

Constructive Alignment

From the website:

Constructive Alignment, a term coined by John Biggs (Biggs, 1999) ... is the underpinning concept behind the current requirements for programme specification, declarations of Intended Learning Outcomes (ILOs) and assessment criteria, and the use of criterion based assessment.



A short film on the approach is here

Learn by mistakes?

Should we encourage learning by mistakes? Case in point is sex education in secondary schools.

We do not teach our children to drive by allowing them to crash our cars. We only focus on making sure that they drive responsibly and correctly.

But when it is about human interaction and relationship, we are dealing at two levels: the social and actions. Building human relationship (marriage in particular) is not only about action (making love), it is more about understanding and enjoying the company of another human being.

Sex education seems to focus on "action" and taking precaution by talking about "protected sex". IS that encouraging "learning by mistakes"? Is that safe?

Sunday, 16 September 2007

GeoGebra

From the website:

GeoGebra is a dynamic mathematics software for education in secondary schools that joins geometry, algebra and calculus.

On the one hand, GeoGebra is a dynamic geometry system. You can do constructions with points, vectors, segments, lines, conic sections as well as functions and change them dynamically afterwards.

On the other hand, equations and coordinates can be entered directly. Thus, GeoGebra has the ability to deal with variables for numbers, vectors and points, finds derivatives and integrals of functions and offers commands like Root or Extremum.

These two views are characteristic of GeoGebra: an expression in the algebra window corresponds to an object in the geometry window and vice versa.


I would characterise the website as a tool for creating visualisation of mathematical equations. :-)

See examples and an article Creating Mathlets with Open Source Tools

Wednesday, 12 September 2007

Salt Water as Fuel?



This is too good to be true, but if it is true, it will really the greatest break through.

From the video, I understand that the burning is triggered by "radio frequency radiation" and can achieve a high temperature. There is ONE important point that has not been explained in the video: how much energy was used to producing the radio frequency wave and how much energy was generated as a result? The ability to produce high temperature is NOT the same as the ability to produce energy. Just like ability to produce potential difference "voltage" is not the same as electrical power.

Tuesday, 11 September 2007

Why re-invent the wheel

Here are two good reasons:



Bullshit- a 10-minute study

Inspired by Doug Johnson's BS Bingo

Bullshit, I scored myself on the first line of the BS Bingo.

[photo from I Me My]

One of my publicly documented Bullshits: Nano-learning (n-learning) is the future

If you are ready to pay $9.95, here is a book "On Bullshit" by Harry G. Frankfurt published by Princeton University Press.

Here are a few additional choices from Amazon for your BS pleasure:
Your Call Is Important To Us : The Truth About Bullshit
The Dictionary of Bullshit
The Business of Bullshit
Bullshit and Philosophy

OK, this is a subject that is too wide to study in only 10 minutes. Please look forward to a more detailed study report later.

Monday, 10 September 2007

Educating our kids out of their survival kit

The following two items get me thinking:

Law to increase activity eliminates recess at some schools
Not News: Our kids are fat. News: New law increases amount of physical education to 150 minutes per week in elementary schools. [source]


Do schools kill creativity?


The first item sends chills through my back. If school systems are managed like those described in the first article, the children will grow only into non-thinking ... slave.

The second item gives me hope and inspiration. A good analysis of current education system.

Please implement the ideas given by Ken Robinson!

Make a pocket LED cube

3x3x3 cube of LEDs programmable to light up anyone you like - even in an animation!

Sunday, 9 September 2007

A Giraffe is Born



The power of information has totally changed the role of teachers. Today, teachers are no longer is the gatekeeper of information. We should focus on helping our students to find and make sense of the information available.

Friday, 7 September 2007

Hydraulic robotic arm

via Gizmag


The robotic arm introduces kids to hydraulics in a fun and dynamic way that requires no batteries or external power source. By pumping the arm to generate energy it can then grab, move, lift and stack.

Thursday, 6 September 2007

Physics as shown in movies

Here are some examples of the "gross scientific inaccuracies in the cinema world". See also

A fun project for the students would be to find and discuss such inaccuracies.

Tuesday, 4 September 2007

How to Learn More and Study Less

by Scott Young

The article gives a lot a good suggestions to be an effective learner.

Here is my view on the same subject:

Study is input. Learning is output.

Just spending time taking in information is NOT the best way to learn. Learning is action you can do AFTER taking in information.

In the how to boost your study habits section of the article:

Metaphor - The heart of holistic learning is relating things together. Metaphors are literary devices that link two things that normally don’t go together.

Ten Year Old Rule - Explain ideas to yourself as you would to a ten year old.

Trace Back - Put away your books and start with a random fact or concept. Then relate that idea to another concept in your subject.

Write - Take a piece of paper and write out the connections in the information. Reorganize the information into different patterns. The key here is the writing, not the final product.


Out of the 7 habits, 4 is about output. You can definitely find out more way of OUTPUTing to order to learn more effectively. Blog is another way. :-)

Saturday, 1 September 2007

Google Earth Flight Simulator

by Marco Gallotta

A flight simulator has been embedded in the latest version of Google Earth. Here is what Marco has found out:

First of all you'll have to install the latest version of GE. Once you've started it all up, explored Google Sky a bit, then all you have to do is hit Ctrl+Alt+A (if you're running OS X it's Command+Option+A).


The information page of the control is here.