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One Device to Rule Them All….
Feb 2nd, 2010 by Andrew Chlup

So, needless to say I’m not nearly as impressed by the iPad as I had hoped. It doesn’t have have flash, it doesn’t have a camera, and it based on the iPhone OS. My geek gene gets excited at the potential for gaming, the multi-touch pressure screen, and the inclusion of iWork apps but my beware of proprietary software gene is also freaking out.

I’ve been hearing the iPad described as a new metaphor or paradigm for computing. Sure this seems like the smart thing to say given the initial response to the iPod and its future commercial success. But if the iPad represents the “new” model of computing I don’t want it!

First, this is not a creation device. The iPad is the exact opposite, the “ultimate” consumption device. IMHO Apple has created a device to monopolize your consumption of music, film, media, gaming, and books. Already, we have a population that is losing its ability to be creative and the idea that an iPad would become the norm just accelerates that downward spiral. It doesn’t record, it doesn’t take video, it doesn’t take pictures, and it doesn’t provide an easy method to transfer these things from other devices. It just deliverers content to the consumer. Of course, iWork offers some hope but Keynotes without multimedia are sort of 90s so where can I pull my content from?

Second, the iPad is not stand-alone. At the end of the day if you want your pictures, videos, and music you still have to sync to a computer. Jobs can bash netbooks but at least they don’t need a mothership to function. I’m not sure if this is a limitation of iPhone OS or intentional but it is very lame.

Finally, I’m deeply concerned by the potential for Apple to control who and what gets seen by potentially millions of consumers. In theory, and without violating your user agreement, you cannot tap into content from any other source except the iTunes store. I find this incredibly scary given Apple’s erratic approval process for apps. If the iPad takes off, and I believe that it most likely will, Apple will have a powerful grip over the future of not only the entertainment industry, but gaming, film, publishing, and more that we haven’t even imagined yet.

While the iPad device is a huge innovation in multi-touch device and flexible user interface, I believe the wide-scale adoption of computing premise could stifle innovation and create the next big computing monopoly, a la Microsoft. That would be a shame and would mean another decade of stunted innovation. It would also mean an end to the resurgence of creativity amongst normal folks as their new device will only allow to express themselves in ways that Apple finds acceptable.

THE Journal 2010 Predictions
Dec 10th, 2009 by Andrew Chlup

http://thejournal.com/Articles/2009/12/10/5-K12-Technology-Trends-for-2010.aspx

Sort of lame list….I think mine is better. :)

I think the biggest item missing from this list is open-source, open-source, and open-source. With raging budget deficits across the country educational institutions across the K-20 spectrum are going to be looking hard at open/free alternatives in their upcoming technology adoptions.

I also think that the recession is a nature time for us turn away from capacity building to spending some time developing efficiencies with the technologies we have. I look at the technologies that are available to most educators and would be willing to bet they only tap 25-35% of the capacity of a given device/service/application. You could make huge gains by increasing that efficiency to 45-55% for less than building more capacity.

And even though it develops capacity, I see virtualization really taking off! Their will be growing needs for technology but no money to purchase new hardware. Using VM, institutions will be able to create capacity by tapping unused potential in existing hardware infrastructure.

Again, economic troubles will bring Google Apps up as a viable option.

Educational content providers will figure out a way to provide a more iTunes like way of distributing digital content. This also has the potential to bring down the costs of distribution of instructional materials.

Building your own “Cloud” – Part 1
Oct 15th, 2009 by Andrew Chlup

While this post is written with K-12 schools in mind it could be used by small colleges and even businesses.

So what the heck is a “cloud”? For the most part it is a return to centralized computing using the web browser as the application of choice. The using the cloud allows you to provide software as a Service (SaaS). This is a great article on the cloud.

Ultimately, schools have not systematically embraced the “cloud” or Web 2.0 because they have very little control over the tools that are offered. Even Google Apps for Education, arguably the best “cloud” application currently available to schools, has some Terms of Use language that makes some teachers and/or administrators flinch. The need for control, whether necessary or not, has held back innovation in schools for too long. This guide will help lay out a path to creating your own “cloud”.

So let’s start with some basics:

  • Virtualization
    Server that supports virtualization. At this point you can pretty much use PC, Mac, or Linux depending on personal preference. This will allow you to tinker more, and the resulting virtualized application is highly portable.

    Here are some of the virtualization products I’ve used:

  • Linux
    Basically, this is a package that lets you easily install an Apache web server with all of the necessary technologies (PHP and MySQL) very quickly. Each one is a bit different depending on the host OS but they all do the same thing. I suggest that for the first time you use a Linux distro with a GUI. This allows you to start experimenting with Linux while still having a comfortable GUI from which to work. In particular, I’ve found both Ubuntu and OpenSUSE to be very user friendly and both have a wide base of support.
  • Web Apps
    For an average school or classroom the following give you a great starting point:

  • LDAP via Active Directory/Open Directory
    LDAP allows you to more efficiently control your user-base on these systems. Most school districts already a have one of these systems in place so it is just a matter of setting up the correct permissions and your users, faculty and students, can log in using their usual info.
  • Server Hardware
    To begin with you can run any of these applications via laptop or desktop. My original setup was on a Macbook with a Core 2 Duo and 2 GB of RAM. For production, you want something a little more substantial but we’ll address that when we get there.
  • Dedicated IP Address and DNS Record
    Most of these applications require that you use a dedicated/static IP address. This just means that your server’s IP address will not change over time. It is also important that your server has a domain name. This can be done via DNS, which will most likely require the help of your IT department or to begin with a modification to your servers HOSTS file.

Above, is the outline of what the next few posts will be about. We’re going to look at setting up a linux webserver inside of Virtual Box, then we are going to install our first web application, and then we’ll look at how to use Apache Virtual servers to host multiple web applications.

The end result will be cloud services for your organization with a focus on utilizing current open-source technologies.

Arras Theme with WPMU
Sep 7th, 2009 by Andrew Chlup

So I had a teacher who really wanted to use the Arras theme with their class. Unfortunately, it didn’t play nicely with WPMU.

I tinkered for a couple of hours and I think that I have a semi-workable solution.

Basically, I did two things:

  1. I added the necessary WP includes so that you can use all of the regular WPMU functions.
  2. I added some logic that made it work with a multiple blog setup.

***I am not a programmer by trade, so there may be major mistakes in my logic. Hopefully this will help you get started. ***

First, I added the WPMU includes to the top of the /library/timthumb.php

[code]
include('../../../../wp-blog-header.php');
include('../../../../wp-includes/general-template.php');
[/code]

This made it possible to use regular WPMU function calls.

Next, I went down to line 520 and added some code to the function using WPMU functions.

[code]
/**
* tidy up the image source url
*/
function cleanSource($src) {
//Added Globals for functions
global $current_blog, $current_site;

// remove slash from start of string
if(strpos($src, "/") == 0) {
$src = substr($src, -(strlen($src) - 1));
}

// remove http/ https/ ftp
$src = preg_replace("/^((ht|f)tp(s|):\/\/)/i", "", $src);
// remove domain name from the source url
//Changed path logic
$path = $current_blog->path;
$path = str_replace("/", "", $path);
$host = $_SERVER["HTTP_HOST"]. '/'. $path ;

$src = str_replace($host, "", $src);

//Added blogs.dir logic
$src = str_replace("/files/", "blogs.dir/". $current_blog->blog_id . "/files/", $src);
$host = str_replace("www.", "", $host);
$src = str_replace($host, "", $src);

// don't allow users the ability to use '../'
// in order to gain access to files below document root

// src should be specified relative to document root like:
// src=images/img.jpg or src=/images/img.jpg
// not like:
// src=../images/img.jpg
$src = preg_replace("/\.\.+\//", "", $src);

//print_r($_SERVER);

// get path to image on file system. Changed from original.
$src = $_SERVER['DOCUMENT_ROOT'] . '/wp-content/'. $src;

return $src;

// get path to image on file system. Appended 10/4
if ($current_blog->blog_id == 1) {
$src = $_SERVER['DOCUMENT_ROOT'] . '/wp-content/blogs.dir/1/'. $src;

return $src;

}else{

$src = $_SERVER['DOCUMENT_ROOT'] . '/wp-content/'. $src;

return $src;
}

}

[/code]

It worked for me and hopefully it will work for you. Here is the php timthumb that I used.

timthumb.php

Updated 10/4 – timthumb.php

Lawsuits and Web 2.0
Jul 1st, 2009 by Andrew Chlup

Will Richardson seems a bit concerned about the “Tops” lack of understanding, when it comes to high level officials. I wonder though if Brad Jupp isn’t correct. I mean there are two major undiscussed issues here.

The first is, “What Lawsuits?” Can anybody actually find a lawsuit related to blogging or the use of wikis? I couldn’t upon a 5 minute Google search. All I could find is a student suing their old principal for discipline related to cyberbullying on Facebook. It seems like every reference to a pending lawsuit had to do with social networking…interesting.

It would seem to me that the bigger problem is two-fold. First, in most cases schools have a ineffective or outdated policies for dealing with students/staff use of the web. Second, there is a major generational gap between how adults and teens/kids view the use of the Internet and what constitutes public.

Now is the time that school districts should update their AUP policies. Most important is that these policies are updated with a group of students, teachers, parents, and administrators. Each group looks at Web 2.0 applications through a different lens and it is a chance to set expectations for their use by all interested parties. Having a defined set of policies related to these technologies makes it much easier to handle the occasional problem that may come up from their use.

Now is also time to do some work to bridge the generational gap. It is important that educators using these tools understand how they are preceived by youth. Of course this is a two way street and using these tools is also a great time for educators to share important information about why privacy is important, the permanacy of the web, and the web is not as anonymous as you may think.

Finally, I think that teachers, administrators, and school IT departments need to look at the “free” Web 2.0 applications and decide why do we actually want this tool? What is the pedagogy driving instruction with these tools?

Part two of this issue is whether or not you need to use public Web 2.0 apps at all. There are some many incredibly easy to setup and use open source Web apps out there today. Any IT director worth a dime can have these systems up and running in no time. Most importantly these tools can almost always be tied to a directory server which makes user management a snap.

Using these tools a district can host it’s own social networking (Elgg or Buddypress), wikis (Deki Wiki), and blogs (Wordpress or Moveable Type). Educators get the advantage of these powerful tools, while administrators and IT directors get to have the control they need. Give you students some training wheels before they set off on the information superhighway.

Basically, it comes down to the basic issue of control and accountability. In a K-12 school environment you have to have both and the only way to do this is keep you Web 2.0 services in house.

Coolest Thing Since Sliced Bread – Wordpress.tv
Jan 17th, 2009 by Andrew Chlup

Elgg 1.1 LDAP Setup Working
Nov 27th, 2008 by Andrew Chlup

I’ve finally had a chance to play with the new version of Elgg. The first order of business was to getting LDAP working for authentication and account creation. While the interface was quite a bit different, the setup was very similar to the previous version. As an added bonus the configuration is done through the web interface without needing to edit configuration files.

Things you need:

  • Running Elgg Installation
  • Running LDAP Server with user information
  • LDAP Browser tool (I prefer JXplorer) highly recommended

Read the rest of this entry »

Back in the Saddle..
Aug 9th, 2008 by Andrew Chlup

It has been a long summer of silence and I’m excited to get writing again.

After finishing my Masters program his Spring, I needed a break to regain some enthusiasm and perspective. As fate would have it, a wonderful project has fallen into my lap and appears to be a great place to spend my “cognitive surplus” now that school is over.

My school district is using some calendaring software and a wiki to create an electronic curriculum guide. It is an exciting project because we are trying to take a number of great web-based tools to capture our district institutional knowledge. It is a pretty bold initiative, but so far it looks great and has incredible promise. I’ll talk more about it later as the details become more public.

At my individual site, we’ve made some great progress with teacher blog use and are now focusing on student blog use. While the staff isn’t ready to open the doors completely on student blogging, I’m currently developing a WordpressMU server as a structured portfolio for student writing. My eventual goal is to take the work that I’m doing and somehow turn it into a plugin. Initial testing suggests that the appropriate hooks are available to make this happen, but I have yet to determine if my programming skills are up to the the challenge of writing a plugin.

I would love to here from anybody that is interested in using WordpressMU for student portfolios.

Elgg Update…
Mar 12th, 2008 by Andrew Chlup

Our Elgg site is up and running with forums, folios, and full-LDAP authentication. It was actually easier than I thought.

At this point I’m sharing it with a few educators who expressed interest in using student blog portfolios.  It ill be interesting to see how students will react to a school-based social network.

There seems to be a little funkiness with some of the site RSS, but it is an issue being addressed in the road map. I wish there were more documentation on the Elgg schema. I find it difficult to see how things are linked together and where various files are kept. This may be my short coming, but it is a bit trying due to all of the guess work.

I eagerly await the next version, and hope that I can give back soon enough.

Elgg LDAP Problem Solved…
Mar 4th, 2008 by Andrew Chlup

As I was experimenting with Elgg and LDAP, I realized that none of the users create via LDAP authentication would so up in browse until somebody added them as a friend. Of course adding somebody who doesn’t show up in the list is a bit difficult so it was sort of a deal breaker.

It turns out that the friends able is used someway in the browse feature and users that register themselves are automatically made friends with a “0″ user that doesn’t really exist. So basically, you have to add a little code to the /auth/LDAP/lib.php and then your LDAP created users will work wonderfully.

Basically, I slightly modified a post that I found on the Elgg forums.

1. Find line 153:

$user_id = insert_record(‘users’,$user);

2. Add the following below:

// adds “virtual” friend, so that user has at least one connection, and shows up in the browse feature.
$newid = user_info_username(‘ident’, $username);
$owner = 0;
$f = new StdClass;
$f->owner = $owner;
$f->friend = $newid;
$f->status = ‘perm’;

insert_record(‘friends’,$f);

The additionally code simple grabs the new users “ident” from the User table and inserts a friend record with the shadowy “0″ user.

Now, if I can just figure out how to setup the tag cloud to work correctly.

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