18 May 2006

Pedagogy and Podcasts

You could argue that educational podcasting is now beginning to come of age. After all, podcasting as a medium for sharing information has been around since late in 2004.

Over this period, the ubiquitous MP3 format for audio podcasts continues to make a strong contribution to the development and gradual expansion of educational podcasting. Nowadays, with the addition of both enhanced and video podcast formats, educationalists now have a choice as to which to use and that very much depends on pedagogical considerations.

So educational podcasters can now consider the relative merits of each format and base their selection on whether the format will enrich the learning experience. Some topics will always present well in audio format and with the tremendous mobility afforded by MP3 players, this is likely to remain extremely popular for some time yet. However, with the gradual increase in the use of internet-based virtual learning environments by schools and colleges, podcasts are beginning to appear as a resource in course programmes.

So now there are pedagogical considerations for educational podcasters to think about, just as there are in any other medium for teaching and learning. Some sunjects and topics will undoubtedly benefit from the use of still and moving images with audio. One is in the world of mathematics and science.

At present, tehre are science podacsts using all three formats. Sadly, the few channels that do exist for mathematics rely on an audio format. This seems a pity as many mathematical ideas often rely on the visual component to communicate meaning and aid understanding.

Perhaps there is still some way to go in the development of the infrastructure, technology and popularity of podcasts in the enhanced and video formats before educators consider them as alternatives to the "normal" audio formats.

05 May 2006

Extending access via OPML

Right from the outset, one of the fundamental principles in the design of our podcast directory was to make access to information easier for children, young people and educators.

One of the technologies we adopted was the creation of Outline Processor Markup Language (OPML) files to provide a full list the information about the podcast channels in the directory. As the number of channels continues to grow, this list is also becoming longer!

We have now created a series of OPML files for each of the categories that we use for podcast channels. From now on it will be possible to select, say, the OPML file for humanities and import this into a RSS reader so that updates to the channel feeds are downloaded automatically.

The beauty of using a RSS reader is that the list of podcast channels can be edited to reflect a particular topic, area of interst or whatever. We hope that you will find that extending access in this way is useful within the classroom or any other educational setting.

Full details are provided on the OPML page of our website.


02 May 2006

Windows and Podcast Players

With new technologies, nothing ever stays the same. This is even more the case when it comes to software upgrades.

Early in 2006, Microsoft released an updated Internet Explorer for Windows browser, changing the way the browser handles QuickTime and other ActiveX controls. Previously, the browser would render and display the selected QuickTime content automatically. However, the updated browser now prompts the user to confirm each QuickTime item on a web page.

Thankfully, Apple have provided a useful approach to solving this problem, which we have no implemented on our website for both our audio and video podcast players. The solution from Apple uses a JavaScript "fix" and they provide full details on their website. Basically, this "fix" provides a method for including QuickTime within a web page that works with Internet Explorer but compatible with other browsers.

Another aspect for users of Internet Explorer to consider when choosing to play podcasts is whether the preferences have been set to enable the new MPEG audio and video formats to be displayed. Whilst the .MOV format has been around for some time, the .M4A audio formats and the .M4B enhanced formats as well as the .MP4 and .M4V video formats are relatively new and may not be included in the "file helper" settings of Internet Explorer.

So now is the time to delve into the settings for Internet Explorer!!!