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August 31, 2010

“Local Mosque, Global Responsibility”: ethics

Filed under: TOK meets global citizenship — Tags: , , , , , — Eileen Dombrowski @ 3:36 pm

“In edgy times, economically and morally, people focus more on what’s owed to them as a right than on what they owe others as a responsibility.” So comments Rushworth Kidder in yesterday’s article on his Global Ethics website.  It is entitled Local Mosque, Global Responsibility and deals with the controversy surrounding the proposed mosque in New York near what Americans call “ground zero”.  I recommend this article to anyone teaching ethics, as it urges a shift of perspective from the narrowly blinkered view of personal demands to a broader view which includes others and their needs and rights as well.   It also invites a discussion on what “rights” are and how the significant ethical and political concept of human rights can be applied and misapplied.

Kidder concludes, “I’d note that while ethics is certainly about standing for conscience, it’s also about bringing others along with patience and gentleness. Surely, of all our universal responsibilities, the duty to build a better world — in practice as well as in theory — stands paramount.”  Yes.  Thank you, Mr. Kidder.

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Methane – new colection methods needed

Filed under: Chemistry — Tags: , , , , , , , , , , , , , , , — David @ 9:45 am

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Methane, CH4 is the smallest member of the homologous series of alkanes.

It is found in crude oil and is the principle component of natural gas. It is produced in swamps (where vegetation decays anaerobically under water) and in paddy fields.

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back to school

Filed under: Biology — Tags: , — Stephen @ 1:11 am

I thought I would share the following excellent Cells site working with the likelihood that this may be a starting point for many who are beginning to teach the DP to Grade 11 classes in this new academic year. From cell size and scale to video animation of the workings of the cell, the links within the site may act as an excellent “hook” for possibly your first topic of the year.

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August 30, 2010

Hiroshima and Nagasaki

Filed under: History — triplea_am @ 6:23 pm

On August 6 and 9, 1945 the United States dropped atom bombs on the Japanese cities of Hiroshima and Nagasaki, ostensibly to force Japan to surrender and end the Second World War.  Almost immediately, the reasoning behing these actions have been questioned and argued.

Most of us in the northern hemisphere have either recently begun or are about to begin a new school year.  Those of you in thte southern hemisphere may well be preparing students for mock exams and their November IBs.  Either way, this subject is an excellent one for looking at historiography and multiple perspectives.  The US and Japanese views are available, as is the Soviet perspective.  Students can be asked to research one perspective and then support it in a debate that is historical, philosophical and ethical.  While an ethical debate may not help answer an essay question it can teach students how to argue effectively and support their points using historical evidence.

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The Maltese Sleuth: crime and evidence

Filed under: TOK meets global citizenship — Tags: , , , — Eileen Dombrowski @ 3:37 pm

Bloody shoeprints from a crime scene?  I’m familiar with the clever use of science and technology, and with the enhancement of sense perception, in the pursuit of knowledge — at least, that is, in principle.  What forensic scientist Kevin Farrugia is telling me, though, captures my attention far more dramatically than your average scientific detection. Kevin, formerly one of my own IB students, is working on the enhancement of footwear impressions in blood on different fabric types.

“You can’t see anything on the cloth,” explains Kevin.  “To the naked eye, there’s nothing there.  But there are several techniques for revealing the traces left by blood.”

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Here’s one I wrote myself

Filed under: Chemistry — Tags: , , , , , , , , , , — David @ 8:42 am

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Here’s one I wrote myself….

What did the positron boxer say to the electron boxer?

I’m going to annihilate you!

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August 29, 2010

updating logical fallacies: four reasons

As I was saying yesterday — no, I guess it was last week — I wouldn’t teach logical fallacies anymore in the way I did for many years.  I’ve updated.  Updated?  You could readily point out that the human capacity to fall into error, or to manipulate thinking erroneously to persuade others, has not changed over the past two or three millennia.  I would agree.  However, to connect with our current students and with the structure of the TOK course, some updating really helps.

Four main reasons have persuaded me to change the traditional list:

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Trans Fatty Acids

Filed under: Chemistry — Tags: , , , , , , , , , , , , , , — David @ 10:52 am

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Over the last 24 months or so you may have noticed that many of the food products you consume have labels relating to ‘trans fatty acids’, labels such as ‘contains no trans fatty acids’ are now common place.

But what does this label refer to?

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Normative and Positive Economics

Filed under: Economics — Tags: , — Peter Anthony @ 2:05 am

Image Source: istockphoto

Clearly establishing the difference between normative and positive economics is a requirement of IB Economics. While normative economics is deals with value judgments about the economy, positive economics is more closely associated with factual information and statistics.

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August 28, 2010

Planning a Timeline for ITGS

Filed under: ITGS — Barbara Stefanics @ 1:33 pm

This week the new ITGS guide is being launched in May session schools for first examination in May 2012. The challenge is to plan the 18 months of study leading up to the mock examinations. The focus is clear… ‘you have to know where you are going before you can get there‘. This means that it is important to look at the assessment components and plan scope and sequence for ITGS with this in mind.

Assessment

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