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Comment A teacher's perspective (Score 2, Interesting) 427

I think there is some merit in the Professor's claims, but there has to be caution. Students need to be able to estimate measures, use measuring instruments, read clocks and handle money, all before age 10. These aspects of maths are suited to activity based learning, and can easily be embedded in other subjects.

But what of the kids who have the right brains to cope with more formal material earlier? What of the kids who cannot understand concepts such as zero or fractions without a more formal approach? What about how the retention of number facts is higher if we can get kids to engage with drill and memorisation of tables at early stages rather than later? How do we prevent the kids developing their own unusual understandings of fundamental concepts, because they have found a need in real life, and then we have to unwind their thinking later, because their constructed strategies only work in special cases?

I appreciate a lot of the results in maths education research. But there has to be great caution before we reject those practices that have worked for between 100 and 2000 years in favour of ideas that one or two research projects support. Is everything we do in classes effective? Certainly not. But until we can get class sizes down, better resourcing, attract more mathematicians to the teaching profession and get more individualised strategies working in the classroom we better be careful not to break what we know does work to some extent for the majority of students, even if it's not working optimally.

Comment Re:A false choice, of course... (Score 1) 2044

The problem with your argument is that in other countries it hasn't happened like your doomsayers predict. Here, as long as you can survive that long, after 12 months a medical insurer cannot knock you back for treatment for a pre-existing condition. If they do, the fines are horrendous, and a large part of that fine goes to you (or your estate if you die of your condition). This has been the case for at least 20 years that I know of, and the health insurers are still making profits, people are still buying their shares, people are still buying insurance, and people are still getting their conditions treated.

As an outsider, the spin that is surrounding this debate is like some kind of sick black comedy. The funniest thing is that so many Americans are buying into the weird agendas that predict the end of civilisation and the resurgence of Stalinism. Look around the rest of the world - these systems can work, which in turn results in a more productive and humane nation.

Comment Re:Personal experience (Score 2, Informative) 429

It's the approach that you can just pump the numbers into SPSS or Statistica, and then call on a battery of tests until you get a "significant" result that results in the kind of errors the article (and a disturbing number of /. readers) fall into.

Unless you're dealing with large samples, all z and t tests assume normality in the population, with insignificant skew or kurtosis. Yet by definition, if we have enough data to be sure we have a normal population, we have enough data that the central limit theorem makes the differences moot. Even more extreme, if we have a complete description of the population (a census) we have no need to use any inferential statistics.

Meanwhile students are told to test the data for normality, homoscedacticity and linearity, to the point where the repeated tests on a single data set make the chance of a Type II error better than even. But by saying "SPSS said so" and burying assumptions beneath a mountain of waffle and misunderstood jargon we can still get these "results" published.

No-one who can't perform a balanced block design ANOVA by hand, or explain what transforming data does to residuals under assumptions of a linear additive model, should be allowed near statistical software in my opinion. And the so-called statistics packages in popular spreadsheets should be banned, and any student relying on them should be failed.

Comment I don't trust that document (Score 1, Interesting) 176

About 10 years ago a colleague of mine found a reproducible way to run commands as administrator on any windows machine that enabled shares or IIS. He provided Microsoft with full details on how to do it. Then he was raided by the Feds 2 days later, as he was apparently a "dangerous hacker". He didn't even let us know how he did it though - just Microsoft. Fortunately his Dad was a senior policeman, and knew the right people (lawyers) to get some sense in the situation. Microsoft is not to be trusted in it's dealings with the law.

Comment Re:Bunch of Asian Employees ? (Score 1) 356

Austudy and Abstudy are different because the situations are radically different. Many Aboriginal people expect to be worked as slaves, beaten and raped in schools. They don't trust us white teachers with their children - after all, that is what happened to them when they went to school. The Austudy paperwork is not suited to people with extended relationship groups, with communal property concepts and relatively fluid addresses.

The so called "extra benefits" for the Indigenes are about equity - providing the opportunity for equality, not equality in itself. Comparing it to the "affirmative action" of the US is misinformed, as there has never been an indigenous African American culture, although there is an interesting hybrid culture in Florida.

GNOME

Oracle Drops Sun's Commitment To Accessibility 220

An anonymous reader writes "What I feared has come true: after buying Sun, Oracle had a look at its accessibility group and made big cuts in it by firing the most important contributors to the Linux accessibility tools. This is a very sad day for disabled people, as it means we do not really have full-time developers any more." The coverage in OSTATIC has a few more details, including the caution: "This just shows that all too few companies are sponsoring a11y work. If one company laying off a couple of developers spells trouble for the project, then there were problems before that happened" (thanks to reader dave c-b for pointing this out).

Submission + - AU Government meets Google for YouTube filtering (itnews.com.au)

An anonymous reader writes: The Australian Government has entered discussions with Google to block access to video content that was refused classification in Australia and that was not technically feasible to filter at the internet service provider level. The Government said applying its mandatory filtering regime in Australia to web sites like YouTube would introduce performance issues. But Google had "experience in blocking material in other countries at the behest of Governments, including China and Thailand" and so the Government was pursuing that possibility.
Microsoft

Submission + - Microsoft: your battery is the issue, not Win7

Sammy writes: Last week, Microsoft said it was investigating issues in Windows 7 that affect batteries on certain notebooks after hundreds of users reported they thought the OS was to blame. Steven Sinofsky, president of the Windows and Windows Live Division, has posted a lengthy response. "At this time we have no reason to believe there is any issue related to Windows 7 in this context," Sinofsky writes. Here's his explanation:

"Several press articles this past week have drawn attention to blog and forum postings by users claiming Windows 7 is warning them to "consider replacing your battery" in systems which appeared to be operating satisfactorily before upgrading to Windows 7. These articles described posts in the support forums indicating that Windows 7 is not just warning users of failing batteries — as we designed Windows 7 to do this — but also implying Windows 7 is falsely reporting this situation or even worse, causing these batteries to fail. To the very best of the collective ecosystem knowledge, Windows 7 is correctly warning batteries that are in fact failing and Windows 7 is neither incorrectly reporting on battery status nor in any way whatsoever causing batteries to reach this state. In every case we have been able to identify the battery being reported on was in fact in need of recommended replacement."

Comment Pen beats keyboard in my experience (Score 1) 569

I was one of those students who used pen and paper in lectures, and I have to agree that it's a more effective way of learning. I did take the time to add additional notes later to "decode" what wasn't legible.

My approach was to get down everything on the board and as much as possible that was said - including student questions and interjections.

This certainly worked for me - I had a GPA of 7, won scholarships, University Medals and Distinguished Scholar awards.

My son (who is in a special school for gifted students) uses a TabletPC. Except for the slippery feel, it seems to be the best of both worlds. Once the handwriting recognition is trained, you have the kinaesthetic sensory input of handwriting, the ability to make diagrams and formulae, and the clarity of formatted text. It will be interesting once the technology matures.

Comment Re:FTA (Score 4, Interesting) 305

The catch in Queensland is that unless you are using the MOI (mandated operating interface) you are screwed. Using Firefox? Sorry, can't help you. OO.org? Same thing. Not Outlook? Then it's your fault you have an email issue. Does AVG show a virus? Not a mandated scanner, so you are NOT infected. Try using squeak in the classroom, and you get slapped. Don't use linux, or cygwin etc. In fact any non-approved software can (and often will) be deleted if your laptop is dropped into Information Services, as your problem is put down to "non-mandated software" as the 1st option.

This clearly makes support simpler, but can make teaching more challenging, especially if you want the kids to use computers as tools for thinking, and not just document management systems.

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