Tag Archives: edupunk

The First 150

New header image drawn with Processing.

I recently published by 150th blog post and WordPress dutifully informed me immediately after I pushed the button.  I thought it would also be a good time to take a look back at vast history (over two years!) of ESL Technology.com.

Top Posts:

Outside of “homepage” and “about me”, the most popular posts of all time are (page views in parentheses):

Interactive Whiteboard FAQ (Wii) (1866) This post summarized a lot of answers to questions I had when I first started working with the Wii-based interactive whiteboard and for a while was among the top links in Google searches for “Wii” and “interactive whiteboard” (IWB).  There has been lots of development in the DIY IWB in the last couple of years, but this post still has lots of good information.  The DIY / edupunk spirit is a common thread throughout this blog.

How do I know my IR LED works? (982) Again, a great insight for DIY IWB users.  The gist: Most cellphone cameras can view infrared.  Intrigued?  Read the post.

Hacking Kinect (756) This is obviously a much more recent post, as Micorsoft’s Kinect came along after the Wii.  As soon as it got cracked open, thanks to a bounty put on someone opening it up, YouTube got flooded with videos of people doing interesting things with it.  People are still interested judging by how often this post is viewed.

Mashable Interactive Whiteboard Activites (743) This post documented a treasure trove of activities for IWBs that are mashable, adaptable, and tweakable if you don’t mind pulling back the curtain and taking a look some basic HTML.  It’s always fun to have to learn and do a little problem solving before being rewarded with your own custom-made classroom-ready tech.

Other highlights:

These next four posts aren’t in the most-viewed, but maybe they should be.

Teaching with Google Images – This was a simple post about how Google Images can be used as a quick reference with English Language Learners (ELLs).  This generated more feedback than most posts, so it must have struck a chord.  I was glad to both highlight a specific technology / website and also give teachers a quick and simple tip they could use in the classroom.

Google Translate – Google does amazing things.  If translation improves as quickly as most other technologies, the profession of language teaching, and the motivation of our students, will look radically different in 20, or even 10 years.  Will students still want to learn another language when their Android phone can translate interactions in 50 languages on-the-fly?  I think so, but not for the reasons they do now.

Computer Games in ESL – Video and computer games have advanced so dramatically in the past decade, they have really become interactive texts.  They have taken their alongside television, music, books, and movies in popular entertainment.  In fact, my local newspaper reviews as many new video games as new movies.  Can we continue to ignore the influence of these games on our students?  I think not.

Are you ready for some football? – As I mentioned above, I am really interested in simulations, games and gaming, but this simulation (of a game) is decidedly analog.  In fact, I designed it for use with one six-sided die.  I’ve used it with several groups of students and it quickly gives them a good understanding of the strategy involved in American football.  Try it for yourself.


I’m changing up the look a bit.  I created the sketch at the top of this post in Processing, an easy to pick up, hard to put down programming language I’m currently learning.  I tweaked it a bit in Photoshop before making it the header for my image.  It was time for a change and time to make something myself.  Maybe I’ll change it again after another 150 posts.

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DIY Virtual Language Lab?

ipad typewriter

I heard a story on NPR the other morning that got me thinking about hackers.  Not the type that break into computer systems to steal credit card numbers, but the kind that like to take existing technologies and repurpose them.  If you’re a regular reader of this blog, you won’t be surprised to learn I consider myself to be a bit of a hacker by this latter definition.

Hackerspaces have opened up in cities across the U.S. and around the world.  Think of these as clubs where like-minded people can share tools and expertise in order to collaborate as well as further their own projects.  Here in Columbus, Ohio, we have the Idea Foundry.  I haven’t been there yet, but the range of projects and classes on the website are intriguing.

So, what is the ESL equivalent?  And, a related question is, could Language Labs serve the same purpose?  I’ve taught in programs that do and don’t have language labs.  And the current trend I’m seeing in our program is that almost every student brings a laptop from home or buys one when she gets here.  Although I know this is a reflection of the demographics of our specific population and is certainly not the case for all ESL students, technology is becoming more and more prevalent.  Could a distributed model of a language lab (i.e. each student has one computer, so the lab is wherever the students are) be a good model?

I’ve always been a big proponent of exploiting Course Management Systems (CMSs) that make it easy for teachers to post supplemental materials online for students to access.  Taken a step further, materials could be made available in a way that students could access them and use them individually in a language-lab-like way.  The difference would be that instead of a whole class marching to a lab to sit together for an hour, students could access “the lab” from the library, a coffee shop, or their own home.  And the motivated ones could do so for more than the prescribed time.

Would this be better for students?  I think it depends on what resources are made available to students and how they are instructed to use them.  Finding some level-appropriate reading would be helpful.  Working through an online workbook might also be useful.  But do those options really allow a student to explore, be creative and become hackers with the language?  Perhaps a bigger question is, have ESL resources really moved forward along with other advances in technology (internet compatibility, web 2.0, connecting users to other users)?  Some of the resources I’ve posted on this blog have potential, but overall, I’m not sure that educational technologies have taken full advantage of these advances.

How would you design your own virtual language lab if each of your students had a computer?  How would you create an environment in which students learn by exploring the language?  Share your ideas in the comments below.

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Edupunk Eye-Tracking = DIY Research

One of my favorite presentations at the 2011 Ohio University CALL Conference was made by Jeff Kuhn who presented a small research study he’d done using the above eye-tracking device that he put together himself.

If you’re not familiar with eye-tracking, it’s a technology that records what an person is looking at and for how long.  In the example video below, which uses the technology to examine the use of a website, the path that the eyes take is represented by a line.  A circle represents each time the eye pauses, with larger circles indicating longer pauses.  This information can be viewed as a session map of all of the circles (0:45) and as a heat map of the areas of concentration (1:15).

This second video shows how this technology can be used in an academic context to study reading.  Notice how the reader’s eyes do not move smoothly and that the pauses occur for different lengths of time.

Jeff’s study examined the noticing of errors.  He tracked the eyes of four ESL students as they read passages with errors and found that they spent an extra 500 milliseconds on errors that they noticed.  (Some learners are not ready to notice some errors.  The participants in the study did not pause on those errors.)

The study was interesting, but the hardware Jeff built to do the study was completely captivating to me.  He started by removing the infrared filter from a web cam and mounting it to a bike helmet using a piece of scrap metal, some rubber bands and zip ties.  Then he made a couple of infrared LED arrays to shine infrared light towards the eyes being tracked.  As that light is reflected by the eyes, it is picked up by the webcam, and translated into data by the free, open-source Ogama Gaze Tracker.

So, instead of acquiring access to a specialized eye-tracking station costing thousands of dollars, Jeff has built a similar device for a little over a hundred bucks, most of which went to the infrared LED arrays.  With a handful of these devices deployed, almost anyone could gather a large volume of eye-tracking data quickly and cheaply.

Incidentally, if you are thinking that there are a few similarities between this project and the wii-based interactive whiteboard, a personal favorite, there are several: Both cut the price of hardware by a factor of at least ten and probably closer to one hundred, both use free open-source software, both use infrared LEDs (though this point is mostly a coincidence), both have ties to gaming (the interactive whiteboard is based on a Nintendo controller; eye-tracking software is being used and refined by gamers to select targets in first-person shooters), and both are excellent examples of the ethos of edupunk, which embraces a DIY approach to education.

Do you know of other interesting edupunk projects?  Leave a comment.


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Interactive Videos

mocap character

When I hear the phrase interactive videos, I think of people covered in florescent mocap pingpong balls or choppy, Choose Your Own Adventure-style stories like Dragon’s Lair.  And there are those.  But, it seems that some creative tinkerers have pushed the envelope with some of YouTube’s interactive features and come up with some interesting results.

How can they be used with ESL and EFL students?  Well, in addition to viewing and interacting with the videos and then discussing or reporting on the experience, students could be challenged to determine how the videos were made.  For the more ambitious, students could make their own videos using the same techniques.  Some of them, like the Oscars find the difference photo challenge would be relatively easy to remake.

For more interactive videos that will get your students talking, watch 15 Awesome YouTube Tricks.

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Kinect-Based IWB

infrared points of light projected from a Kinect

Ever since a $3000 bounty was placed on cracking open Microsoft’s fab new gaming hardware, the motion-sensing Kinect for Xbox, hackers and tinkerers have been putting the open-source drivers to lots of interesting uses on platforms that Microsoft never envisioned.  I’ve written about interesting Kinect hacks before (and before that,) and I’ve written about my experience with the Wii-based $50 Interactive Whiteboard (IWB,) but I haven’t seen a fully-developed Kinect-based Interactive Whiteboard.

Perhaps an Interactive Whiteboard is too narrow a description.  Many of the pieces are in place (see below) to interface with a computer using Kinect.  So, as with the Wii-based IWB, any application you can use on your computer can be controlled by this hardware.  If you connect your computer to a projector, you essentially have an Interactive Whiteboard.

Is the Kinect-based experience different from a Wii-based IWB or a Smartboard?  Almost certainly.  There would be no need to touch the screen at all, but rather to gesture in front of the Kinect to interact with the projection on the screen.  Would this be an improvement?  I’m not sure.  A touch-based IWB is more analogous to traditional whiteboard that uses markers and an eraser.  So, the touchless experience would be quite different.  I need to try it myself to really wrap my head around the opportunities that this motion-sensing interface offers.

I’m not sure if anyone here at Ohio State is working with Kinect as an interface for non-Xbox applications.  But I do know that the Digital Union has a Kinect which could probably be used to see if and how things work.  If anyone else is interested in trying to pull this together, drop me a line or leave a comment.

Multitouch with Kinect

Kinect on a Mac

Multitouch Kinect

Kinect Fingertip Detection

Kinect + PC + Mario = Fun


Filed under Projects

Kinect Development

microsoft kinect hardware

Microsoft recently announced plans to release a software development kit (SDK) for the Kinect.  This should allow academics and enthusiasts to find new ways to connect the motion-sensing Xbox hardware to other platforms, such as desktop and laptop computers, much more easily.  In short, there should be many more Kinect hacks to come.

I’m still not sure how this would directly apply to classroom teaching, although it stands to reason that these applications could someday replace physical interactive whiteboards in the same way that Kinect was originally designed to replace physical videogame controllers for the Xbox.

For more, see my previous post on Kinect Hacks and below for some new examples of how Kinect is being used in new and exciting ways.

Control Windows 7

The touchless multitouch is really nice.  Mice are so 2008.

3D Tetris with Face Tracking

As the user moves his head, the perspective on the screen changes to match so that the 3D perspective is constantly updated.

Kinect Lightsaber

A wooden stick becomes a lightsaber in real time.  This would save hours of  frame-by-frame editing.

Balloon Body

After Kinect scans your body, use your scroll wheel to expand or contract the surface.

Christmas Lights

Use Kinect attached to a bunch of dimmers to control Christmas lights for a very nice effect.

Flying Robot

The 3D capability of connect makes it perfect for a robot that navigates three-dimensional space.

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Open and Kinect

open kinect

A few days ago, I wrote about how the new Microsoft Kinect has been hacked so that you don’t need an Xbox to use it.  There are now lots of tinkerers and hackers working with this hardware to see what else might be possible.  Although it’s not as easy to see the immediate applications for Kinect in the language classroom as it was for the Wii-based interactive whiteboard, there are obvious parallels.  And this new gaming hardware is more advanced than the Wiimote, which may offer more possibilities.  I’ve posted some examples of some interesting Kinect-based projects below.

How does it work?

Infrared beams, and lots of them.  Here’s how it looks with an infrared / nightvision camera.

Multitouch IWB

Because Kinect can “see” surfaces in 3D, it can be used to create a multitouch interactive whiteboard on multiple surfaces.

Control your browser

Forget your mouse.  Kinect can see the gestures you make in three-dimensional space.  Use gestures to control your browser and more.

Teach it

Teach it to recognize objects.  Obviously, there is a lot more software in use here, but Kinect provides the interface.

Digital puppets

Who wouldn’t want one of these?

Visual camouflage

In 1987, the movie Predator cost $18M.  A significant portion of what was left over after paying Arnold Schwarzenegger was likely spent on the cool alien light-bending camouflage effects.  Just over 20 years later, you can make the same effects on your computer using the $250 Kinect hardware.

3D video

At first glance, this looks like really poor quality video, but stick with it.  Notice the Kinect camera does not move, but with the flick of a mouse, the point of view can be changed as Kinect extrapolates where everything is in the space based on what it can see from where it is.  The black shadows are where Kinect can’t see.

Using 2 Kinects, most of the shadows are filled in.  The effect is like a translation of the real world into a low resolution Second Life-like environment.


Filed under Inspiration