Crucial Thought Rss

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Chris selected as K12OnlineConference keynote speaker Each year the K12OnlineConference provides tremendous professional development for free, and entirely online. This year, they have selected me as one of their keynote speakers. I am thrilled to have been chosen and look forward to participating in the conversation. Read the full post announcing all the keynote speakers here.

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Two quick links on Cognitive Load Theory I've been fielding lots of questions lately about Cognitive Load Theory. Here are two quick links that may be useful. First is an article talking about the practical implications of CLT on the design of learning. The second are some "recent" (as of 2003) developments regarding CLT. Happy reading! Update: I clarified the second...

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Practical advice on kids and Android app development After hearing about my students' success developing an Android app, I've gotten several emails asking for more details as to how I practically worked with my kids. Here are some pointers that I offered to the first person that emailed me, perhaps they are of some use to you. Please note that your mileage may vary. It's ok to not be...

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Publishing an App Inventor app to the Android Market As I mentioned earlier, my students and I published an Android app to the Android Market. See those links for more information on the background. This post is decidedly technical. First, once we finished the coding process, we packaged the app for to download to the computer. This is an option in App Inventor. This downloaded an .apk file....

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Designing and publishing an Android app with kids This post is designed to provide some context around how/why we decided to build this app. The more technical details of the code and how we published it will come in a future post. My students and I recently completed and published an Android app, and here's how we did it. First, the genesis for this goes back to a question I asked...

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Papershow’s Purpose

Category : Educational Technology

Since I was a bit wrong about Papershow’s purpose, I wanted to clear that up. Here is a bit straight from the US distributor.

The purpose of Papershow is to allow presenters, teachers, marketers, etc. to give interactive presentations while also having the ability to annotate their presentations on the fly. While aspects of the Papershow pen are similar to the Pulse Smart Pen, Papershow as an entire product, which consists of three components, is very unique. The Papershow interactive paper, USB key and Bluetooth pen working together allow someone to give a presentation, conduct a brainstorm or teach a class all from a notepad, and that person can be 20 feet away from the computer. After annotating a presentation or conducting a whiteboard session, Papershow allows you to save all of the notes as a PDF, and then print or e-mail them to anyone you would like.

Papershow is a similar concept as the SMART Airliner wireless slate and eInstruction tablets, but it is much less expensive, it’s just $199 for the starter kit. Also, with Papershow, you are physically writing with ink on paper, rather than an electronic tablet, and this is then projected on the screen which creates more of a “magic” effect. Papershow is very portable too, and easy to carry around, as it’s just the pen, USB key and pad of paper or presentation binder.

You’ll note the comparison against SMART Airliners (which I don’t like much) and other tablets. This is because I mentioned that it seemed a likely market for Papershow.

I’ll test it out a bit this week with students to see how they like it compared to the Airliner.

Comparing video hosting services when displaying HD video

Category : Educational Technology

A few days ago I got my new Flip Mino HD in the mail. I charged it overnight and then began to play. Last night, I shot a quick bit of footage in low light situations. First I recorded my Christmas tree and then my Christmas lights outside. I uploaded it to YouTube using the included FlipShare software.

@thekyleguy mentioned via Twitter that YouTube does not do well with HD footage, despite being newly HD and widescreen capable. He recommended blip.tv as a viable alternative.

I decided to compare them head to head, well, to head. I added Vimeo to the mix, as it is my sharing service of choice when publishing work for public display. My little less than one minute video was roughly 70 megs when copied right from the Flip.

Here are the three videos. Keep in mind I uploaded this without any changes at all. This is raw footage, compressed using the Flip’s internal H.264 compression and then the sites do with it what they please to display it. I also did not change the default embed code in any way, despite Vimeo’s delicious method to change the size, color, etc of embedded videos.
I had to change all the embed code to the same size. Since YouTube’s embed code used the size I liked the best (560×345) I stuck with that all around. This post looked awful with three videos of all different sizes. In hindsight this should have been three posts.

The first thing to notice is that the blip.tv player borks my theme because of the width. It plays HD video in the native resolution of 1280×750. I could change that in the code relatively easily, but in keeping with a direct head to head to head comparison, to heck with my theme.

YouTube

Vimeo

So the Vimeo embed wasn’t HD. You have to go to the Vimeo site to watch it in HD. Odd.

Blip.tv

Impressed with Vocaroo

Category : Educational Technology

A few weeks ago I read Tom Barrett’s Google Earth posts with interest. The idea of using voice inside Google Earth was intriguing, as it opened up new ways for my students in Spanish class to use the language.

So I tried Vocaroo. It didn’t work.

I emailed my principal and it was then forwarded to the district level for consideration. The district folks determined that when pressing Record, the request actually went to a different server. That server was blocked by our filters for being a known proxy hosting server. I accept the need to block that server, and wrote off Vocaroo.

However, I decided to email the Vocaroo folks and let them know. Originally they had me check to see if port 1935 was open in our district. It is. A few days later, I got an email from the Vocaroo folks saying..

Hi, just an update on this.

Vocaroo has now moved to a different server, so you should be able to
access it now (unless they deliberately block the vocaroo.com domain).

Wow! Vocaroo works like a charm now! Yay!

I asked whether this was directly related to my emails from earlier and they said:

Yes it was in response to your request – and thanks for reporting the
problem. The more people that can use it, the better :)

Wow again! I’m impressed. A very public thank you to Vocaroo for being willing to make this change so that my students and presumably many others can use the service.

This goes to show you, it pays to contact folks.

Slideshare’s final slide deck for Presentation Design Tennis

Category : Educational Technology

A while back I mentioned that I was chosen for Day 6 of Slideshare’s presentation design tennis.

Here is the final slide deck.

What do you think of their design techniques?

Slideshare Presentation Tennis

Category : Educational Technology, General

Slideshare’s presentation tennis group has chosen one of my slides for their daily choice.

To see all of the daily picks (and the first four or five were done professionally, and I was day 6!) click here.

Here’s the announcement…

I think they chose mine because it makes for a nice transition between the professionally designed ones to the community designed ones.

Also please note that I did attribute the photo (it’s from stock xchng which doesn’t require an on-slide attribution) when I uploaded it.

Here’s the slide…it’s for my first day teaching undergrads and it’s time for them to introduce themselves.

Here’s the entire slidedeck thus far.

Terry is talking about me

Category : Educational Technology

For some reason, this is interesting to me. The entire conversation regarding my disagreement with Terry’s last two minute tips video took place entirely on Twitter, which he mentions.

Now’s he’s responding to me via Seesmic.

Honestly, I’d have preferred a blog post or something a bit more text-based to make it easier to process (he mentions this as well).

Here is the video for your consideration. What do you think?

Does a subject matter expert a good test creator make?

Video contest submission – Mysterious Middle School

Category : Educational Technology

So there’s a contest put on by the American Council for the Teaching of Foreign Languages. I entered it with this submission.

The goal was to personify Spanish a bit and make it a bit ghostly. This is almost entirely student-done, with only minor help from me in shooting it. I was allowed to help with some of the finer technical details, so I did.

One note, it had to be 2 minutes or less, hence the shortness. I’m thinking about making a longer version, but my time to do so runs thin.

You’ll want to turn the sound up to get the full creepy feeling.

Below the Youtube is the TeacherTube embed. Enjoy!

Youtube direct link
Teachertube direct link

YouTube Preview Image


Update: Added suggestion to turn sound up, moved links to above.

Cathy Nelson and students hearing a slip up

Category : Educational Technology

Cathy Nelson has a marvelously interesting post today about her school/district’s restrictive new IT policy.

She writes (emphasis mine):

What did I say? I said, “This is not real-world. How am I going to teach students to be ready for the 21st century if normal computer standards like desktop icons and right click are not available?” Yes I distinctly remember putting voice to that comment. And only now do I realize how keenly the crowd that gathers in the library each morning listens to me. You see we have an 8th grade current events exploratory class. The class is creating a newsletter for students–target audience–> students. One of my morning “regulars” is in that class, and his group is creating a “critic’s corner” for their newsletter. After getting a “no” on anything that might criticize a specific teacher or student, and getting shot down on love, sex, drugs, or profanity, the group has finally come up with a new topic they are enthusiastically researching for their contribution. It will be a critique of the new student login and restrictions on the computer. The plan to write about blocked sites, no icons, the inability to make a workspace that is “theirs” (translated they want a cool background on their desktop, their own bookmarks, etc.) and get this: they are going to QUOTE me making my statement.

Here is my response, also left as a comment…

Hi Cathy…

I have a couple thoughts about this…

1. Don’t let them use your quote at all. First, it makes you seem like you’re wanting to openly start a bit of a rebellion.

2. The quote is not correct. Sure kids can have all the desktop love they want at home, but the reality is in the corporate world many IT departments have severely restrictive policies in place. I have a friend who works for a major corporation and his privileges are nonexistent on the machine he uses all day long. He has to resort to running portable apps on a flash drive until they blocked USB port access. So the truth is, what they are experiencing is in large part overly protective IT management policies that are, in fact, real world.

3. This is not the way to enact change. With this being so new, naturally the school/district/IT folks have made the policies far too restrictive out of fear. Fine, have the kids convince them there’s a low risk to allowing them to change desktops, etc. Instead of a CRITIQUE (read: puts the admin on the defensive) have them play political (teachable moment here) and have them survey the student body and report back that 99.95435324 percent of the kids would like the chance to change the background or whatever. Then have them explore the possible risks, why did the IT dept decide to do this, etc. Then have them counter argue. Critique sounds whiny, critique sounds attacking, make this more of a Student Response.

Ok so that’s a lot, but it’s my thinking…

Chris

A few recent bug fixes, are you having these problems?

Category : Educational Technology, General

I’ve been having a few issues recently that I’ve been able to fix in the wee hours of the morning and I wanted to share the fixes with you in case you’re having any of these problems.

1. FoxMarks wouldn’t synchronize when I upgraded to FoxMarks 2.0.34.

Solution: I had to upgrade to 2.0.36 and then change the auto proxy settings for Firefox. It had to be set to Direct Internet connection. I also had to find the download by going to FoxMarks.com and seeing the link to the wiki.

2. WordPress quit sending comment notifications following upgrade to 2.3.1. I upgraded to 2.3.2.

Solution: It turns out that I had to enable a forwarding email address in the form of wordpress @ myblogaddress.com and forward it on to my gmail acccount. There was a change in there somewhere that caused this.

Maybe this doesn’t affect you, but maybe it does. If this helps, well, good.

Chris

Geektool and the newfound usefulness of my second monitor

Category : Educational Technology, General

I have a pretty nice home office setup. I’ve got a 20″ iMac and a 19″ LCD Dell 1905FPS LCD monitor sitting next to it. It’s a really nice monitor and accepts two inputs. On the analog side, I’ve got my Windows XP box which hardly ever gets turned on any more. On the DVI side I’ve got my iMac plugged in as a second monitor. I used to leave the LCD off most of the time until yesterday when I got some revelation that I could actually put it to use.

Here’s what it looks like now…

Useful, eh? Here’s how I did it..

I first heard about GeekTool some time ago from Lifehacker. I remember having tried to get it to work once before but failing. My issues, I was sure, so I attacked it again. Also credit Lifehacker for the script to embed Skype contacts you’ll see below..

Once Geektool was installed, I copied and pasted the shell command as per Lifehacker’s suggestions and it popped right up. I configured the script a bit for my liking and it was good to go!

I had also thought about a plain text todo list which I’ve heard from a few folks is a good idea. I had issues making it work with TextEdit, though, since it always tried to save as an .rtf file. Through a few twitter direct messages, I learned that you can force a plain text file by adding .txt to the file name.

It still didn’t work.

Turns out I had to set the encoding as shown below…this only worked for me once I created a file in Windows notepad.exe and copied it over. I couldn’t make this work solely on the Mac side.

Ok then, once I did this, I set the Geektool up to see the file. To monitor your machine’s console log, it defaults to seeing it like this…

I did this and it worked nicely when looking at my plain text todo list. The only trouble is when I changed the text file it didn’t change on the screen. That’s no good. I had to log off and log back on for GeekTool to recognize the change. That’s not cool.

I went searching and stumbled across this thread which lead me to this post. Eureka!

Once I right clicked, went to Open With, and used Firefox, I got the local URL for my todo list! I pasted that along with a curl command, set the refresh to 30 seconds and voila!

The command looks like this –> curl file:///Users/username/Desktop/todo.txt and it automatically refreshes at the interval selected.

So now I had my solution and a darned useful second monitor! I’ve still got plenty of screen real estate left to delegate to other stuff if needed, and will do that on an as-needed basis.

Here’s what my second monitor looks like now, click for a larger version with skitch’ed details.

As you can see, I’m leaving Colloquy open on the edublogosphere IRC channel (irc.edublogosphere.com and channel #edublogosphere) just in case anyone stops by.

Any other GeekTool’ers out there that can suggest a cool uptime command or anything else I can be doing with GeekTool to be even geekier? Did you set this up yourself? Shout out in the comments!




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