Archive for January, 2009

Please Don't Change That URL!

Saturday, January 31st, 2009

From BBC - Radio Labs - How we make websites comes this quote: It's nice if URIs are human readable. It's also nice if they're hackable. It's an absolute prerequisite that they're persistent. Don't sacrifice persistence for the sake of prettiness or misguided SEO. URIs are your promise to the web and your users - […]

Homework Help = Cheating ?

Tuesday, January 27th, 2009

In checking out some of the people mentioned in this posting by Seb Schmoller (which I learned of via Stephen Downes), I was led to consider where is the borderline between helping a student to learn and facilitating cheating.

What is 0^0 equal to? - squareCircleZ

Sunday, January 25th, 2009

This post at squareCircleZ (a very nice enrichment and support website for students and teachers of mathematics) raises the conundrum of how to define 0^0 if all positive x give x^0=1 and 0^x=0.

Open Culture

Saturday, January 17th, 2009

Open Culture is a website developed by Dan Colman (who moonlights as the director of Stanford's Continuing Studies program). It focuses on educational video offerings such as the Leonard Susskind Physics Lectures, and includes a page of links to other academic YouTube video collections.

David MacKay: Sustainable Energy - Without the Hot Air

Thursday, January 15th, 2009

In Sustainable Energy - without the hot air UK physicist David MacKay presents plausible back-of-the-envelope estimates of the scales of action needed under various strategies for reduction of global carbon fuel combustion. The numbers he uses are easily checked and his analysis can be re-run with revised parameters if needed. Only when a significant fraction […]

By The Numbers

Thursday, January 15th, 2009

This article discusses the latest round of changes in the WNCP Math Curriculum. Somehow, after seeing perhaps half a dozen rounds of this game, the rhetoric of revolutionary change wears a bit thin.

TIMSS 2007 - How are we all doing in math? - squareCircleZ

Wednesday, January 14th, 2009

The part I find most encouraging in Murray Bourne's discussion of the latest TIMSS 2007 report on mathematics performance around the world is the distribution of gender differences - in particular the fact that the relative performance of females is stronger most especially in a number of Islamic countries. My top-of-the-head explanation for this is […]

Internet Safer Than Thought vs Flickr Perversion

Wednesday, January 14th, 2009

In contrast to this study (which I came to via Stephen Downes)showing that the internet just isn't the danger to children it is often portrayed to be, we have Alec Couros reporting on Open Thinking & Digital Pedagogy » Blog Archive » Flickr Perversion, which is about the unpleasant experience of finding some of his […]

Philosophy Talk: The Blog: William James and the Squirrel Example.

Monday, January 12th, 2009

Philosophy Talk: The Blog: William James and the Squirrel Example. Yes, James does seem to be confounding a number of issues in that lecture His resolution of the squirrel dispute (“Which party is right,” I said, “depends on what you practically mean by ‘going round’ the squirrel") looks more like linguistic analysis than anything else, […]

How Much is Too Much?

Sunday, January 11th, 2009

I have always believed that disprportionate reponse is justifiable (if struck once I will strike back unpredictably harder if I can so that there is no future temptation to estimate expected value of an attack). And I understand that in the event of military action some level of "collateral damage" has to be expected (and […]