Over the summer we upgraded many of our projectors, which gave us the opportunity to refresh our classroom A/V model. In a BYOD school, projection can be a logistical nightmare: students bringing myriad devices with different display adapter requirements puts a burden on the IT department to have adapters available for each class. As anyone who has spent a class period on student presentations knows, valuable time is lost with students shuffling through the front of the room and exchanging adapters even if the correct ones are all present.
Logistics aside, the wired projector also presents a subtle-but-constant “sage on stage” control dynamic: whether student or teacher, whoever is presenting and plugged in to the projector controls what is being displayed. Freeform discussion, question-and-answer, or targeted inquiry are always unbalanced since only one person has the ability to display information.
In order to both create a more flexible learning environment as well as eliminate the dreaded dongle bundles, we have equipped all of our classrooms this year with both wired and wireless projection capabilities that meet our BYOD requirements.
The picture below represents our average classroom dongle bundle– HDMI, Mini Display Port and Apple 30-pin. Since our Middle School iPad program began shortly before the release of the Lightning-based iPad models, this bundle covers most of the laptops and iPads that we see on campus. It does not cover, though, Lightning-based iPads, nor many phones or tablets with mini-HDMI. Also notice that audio has to be through a separate cable. Not every student presentation requires audio, of course, but any kind of video or multimedia sharing will require plugging in two cables.
We do have a handful of Lightning adapters and mini-HDMI adapters on hand in IT, but have not deployed them into every classroom. Since we want teachers and students to have confidence in their ability to fully use every space on campus, this isn’t ideal.
The addition to our classroom deployment this year is the use of Apple TV in combination with AirParrot. iOS and Mavericks-based MacBooks made after mid-2011 will broadcast audio and video to Apple TV’s natively. AirParrot is a client to do the same with Windows and pre-2011 MacBooks. I’ve written about AirParrot before, and last spring it didn’t totally work with Windows 8. After conversations with both Squirrels (the company behind AirParrot– I haven’t gotten to talking to actual squirrels yet) and friends “in the know” at Microsoft, it seems like the problem was a very complex display driver setup within Windows 8. Subsequent updates to 8.1 have made AirParrot much more workable for that OS as well to the point where we’re comfortable deploying it to the school this year.
A couple of implementation notes on AirParrot: since we want wireless projection to be available for students as well as teachers, we have purchased licenses for our students to use and will invite them to download AirParrot and request a license from IT if they want to put it on their school-use laptop. This is a cost to the school, but we purchase class-required apps for student-owned iPads in the Middle School, as well as student licenses for e-mail, and this seems consistent with that philosophy.
Second, Windows 8.1 is still not entirely seamless in its display configuration. In order to serve the display needs of both Tablet and Desktop modes, the Desktop mode has a built-in magnification setting which makes the text and icons more usable (instead of being ridiculously tiny as they would be naturally with the default resolution). This setting is the key instigator in display issues with AirParrot, and some devices may need it to be turned off in order to display correctly. This can result in the text and icons being uncomfortably small on the tablet display itself, which requires adjusting the display resolution. To complicate things further, the magnification setting requires logging out to change– it can’t be applied on the fly. This means it’s much more important to get one setting which can be “set it and forget it” rather than adjusting as you go. It seems as though different hardware models have different “sweet spot” combinations of magnification and resolution which will allow the display to be sufficient both a) in Desktop mode on the tablet and b) through AirParrot. The settings I ended up with on my Surface 2, for example, did not translate to the Surface 3 (the 3 looks great through the AirParrot, though!). We’ll continue to monitor this as the year develops.
Projecting a Socratic Seminar
Knowing that this is a slightly awkward first step towards truly seamless wireless projecting, I’m excited to see the ability for students to use the projector as a tool for discussion and small group work as well as lecture/presentation. When students can share information and resources with a group/class in real time rather than simply as prepared delivery, and when the projector becomes one more “open access” collaboration tool, the classroom is a more flexible and balanced learning environment.