Evan Predavec

May 182013
 

scratch day 2013It is officially World Scratch Day. Much as I love Scratch I struggle to see a programming language needed a day to itself. But then, I suppose, there are many less deserving things that get their own day.

Thinkspace at the Powerhouse Museum is running an event:

We’ll be remixing projects from the massive global scratch community, and adding animation based on some of the weird and wonderful things in our collection, and coolest images from our historic photo collections. We’ll be sharing our creations on our exclusive Scratch Day Gallery.

The gory details are as follows. When: 18 May 2013. Sessions: 11-12:15pm, 12:45-2pm, 2:30-3:45p. Cost$25, $20 members. Ages 7 and up. Details and bookings available from the Thinkspace webpage.

May 172013
 

IMG_9708Is this a new OPAL terminal on a bus?

Spotted by our roving transport correspondent, Callum P, on a bus in North Sydney this morning it doesn’t look like the OPAL terminals on the wharves, but it certainly looks like a touch-and-go terminal. The bus came fitted with two of these one by the driver and one in the luggage area.

The lack of an LCD screen makes me wonder if this is just a case of wishful thinking rather than the buses really gearing up their infrastructure; but it’s not impossible to believe that there are technical reasons for the design on a moving bus to differ to that attached to a wharf or station.

Does anyone know more?

May 172013
 

I was reading the paper this morning about changes to the Sydney rail timetable. I read my Sydney Morning Herald on the iPad, but I still use the digital edition that looks identical to the paper version. The article included a neat little graphic that summarised the changes to the rail timetable and suggested going on the web to see “how your station is affected in the new draft timetable.”

On the web I go. The web version of the graphic is exactly the same as the printed version with the exception that you have to click on the dots to see the information that was displayed on the face of the printed version. Exactly the same information. What on earth is the point of taking a lovely, clear graphic and taking information off it just to make it interactive. Really SMH, this may come as a shock but people don’t get that much gratification out of clicking a mouse button these days.

May 162013
 

PTOParent Teacher Online (PTO) does just one thing – it provides an environment for booking and managing parent-teacher interviews. It does that one thing very well, if my experience booking interviews with my son’s teachers is anything to go by.

The booking process is extremely simple, just being a function of selecting times from drop-down boxes. The interface isn’t fancy, but then it doesn’t really need to be either. This is one of those simple, time-saving ideas that seem blindingly obvious once someone else has put them together. Every other time I’ve booked interviews I’ve had to select a series of times on paper and rely on the school to create a timetable for me. This year I just picked times and, in minutes, had a locked-in timetable available for downloading to my calendar.

There are probably other ways a school could achieve the same end. A Google calendar set-up perhaps? But there’s the danger of recreating the wheel and it all falling in a messy heap as you try to force a generic tool to do a specific thing. That’s what I like about this application – it focuses on solving a single problem.

There are probably other uses that a School could put the system to, but I’m not sure that wouldn’t defeat the purpose of having a tailored tool. From the other end, the company behind PTO is also using their software to create a system to organise volunteer rosters: Pick a Time.

There’s no public information on PTO pricing for schools. But it makes sense that this would save a lot of administrative time, and so money, for teachers and admin staff. And it certainly simplifies life for parents.

Full details are at Parent Teacher Online.

It’s interesting to contemplate a time when the actual parent teacher interviews will be online…

May 152013
 

skimming deviceHave you ever wondered why your card does not slide quickly and smoothly out of an ATM? It turns out this is a deliberate design feature from the manufacturers to make it harder to skim information from your card.

One of the essential elements of a card-skimming scheme is reading the information from the magnetic stripe on the card. Most skimmers do this as the card is coming out of the machine as that’s more predictable than when someone is inserting the card into the machine. So the ATM manufacturers deliberately build a jitter into the mechanism to make it harder for the card to be read. That’s what I learnt today.

This was a bit top-of-mind for me at the moment as my own bank introduced a shiny green new feature on their ATMs to help defeat skimmers. Unfortunately my first reaction was that it was itself a skimming device – and in fact it looks remarkably like the skimming device in this photo from earlier this year. It sort of amazes me that banks don’t post up a little photo of how their ATM is supposed to look beside the ATM itself.

Photo: George Slefo

May 152013
 

collectables-fair-may-19The Collectables Fair is in Parramatta on May 19. Our roving collectables correspondent, Scott M, reports that he went last year and “Star Wars paraphernalia seemed to predominate, along with collectable card sets, Back to the Future, Doctor Who, Lost In Space and a myriad of other themes”.

Looks interesting although Bart Simpson and ‘join us dudes who share this cool passion’ is making me wince.

Full details at: collectableandmusicfairs.com.au

May 142013
 

Google Australia’s submission on a proposed new digital technologies curriculum in our schools is spot-on.

I give up several hours of my week teaching programming and robotics to primary and high school kids just because the current curriculum doesn’t teach kids to be creators instead of consumers in our modern world. Given that, it should come as no surprise that I broke out in a smile upon reading what Google had to say. I’m not always Google’s greatest fan, but there are many times when they simply get things right and see what’s happening in the world with a clarity of vision lacking in both companies and government.

I only wish that there was more emphasis on teaching computer science just to give kids control over their world, rather than on creating computer scientists because that’s where the money is. But, hey, you have to start somewhere and following the money is usually good tactics.

Here’s some of what they had to say:

Digital technology and computer science have changed Australia in many ways in the last decade, and these changes will doubtless continue into the future. But as these technologies become more and more integrated into our lives, we must ask ourselves: do we wish to be a nation of creators of technology— or just consumers? We’re already among the world’s heaviest users of tablet devices and smartphones—but knowing how to play games on a tablet is not the same thing as knowing how to create them. One costs money; one generates money. Shifting our focus as a nation from the consumption of technology, to the creation of technology, will help us compete in an increasingly global and connected world.

The opportunities for our children are enormous. The young people who grow up with this new curriculum—our first ‘innovation generation’—will have the some of the world’s most sought-after and highly-valued skills. Globally, the demand for computer science and computational thinking skills only continues to accelerate. The technology sector worldwide holds huge potential for the creation of high-value jobs and wealth; the tech startup sector alone in Australia has the capacity to contribute $109 billion directly to GDP and create 540,000 new jobs by 2033. A highly-skilled workforce is the key to unlocking this value.

In Google’s experience, an introduction to computational thinking in early years provides the strongest possible pathway for students to engage with and excel in computer science, and benefit from the careers it enables. Yet today, Australian students with tertiary Computer Science skills are falling in number and make up just two percent of the total of domestic graduates.

That’s why we’re so heartened to see this proposed new curriculum. Successfully implemented in schools across the nation, and taught by passionate teachers, we believe it will be an important first step in preparing students to become the creators and innovators of the future.

In addition to the specific curriculum feedback we’ve included in our submission, we also recommend enhancing the exposure of Australian students to more computational thinking and computer science by:

  • Making Digital Technologies a required subject from Foundation to year 10.
  • Making Digital Technologies a stand-alone learning area to increase its visibility and awareness of the economic and job opportunities for people who ultimately pursue a career in the field.
  • Ensuring Digital Technologies provides instruction in at least one general programming language.