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Sharing your screen

March 7, 2016 by Robin Englebright   

At the HEA arts and humanities conference  on the 3rd March 2016, Vikki Haffenden presented her research into improving the student experience in workshop sessions.

When teaching Vikki demonstrates really intricate settings on knitting machines and close up work, to University of Brighton Textiles students,  and it can be hard for the students to see. After much experimentation she settled on using the camera on an old iphone4S in a chest harness to stream video to an appleTV and then onto a 32″ TV screen, so students can see even if their view is obstructed, and in fact can see in more detail as the image gets magnified.

To test the decisions Vikki made the session then moved to a hands on workshop, comparing a range of screen sharing technologies and drawing out the pros and cons of each.
We started with a quick Poll using PollEverywhere to gather thoughts from the delegates on potential uses for the technologies.

PollEv

PollEverwhere performs the function of the older style voting buttons, but using mobiles to access the poll either through the website: PollEv.com/brightonhea or by Texting BRIGHTONHEA to 020 3322 5822.

For our demo the question was “How do you think you might use screen sharing for in your teaching?””

We then spilt into two teams, to see how easy it is to set up the kit, as this was one of the areas Vikki identified as important, if it’s too tricky to set up, or unreliable it leads to a bad experience.
Team one (team Vikki) used Vikki’s iPhone in a chest harness streaming to an apple TV and screen combination.

Team two used a Go Pro with a head harness (because a head harness is way funnier) streaming to the Go Pro app, connected to a projector by an adaptor cable.

GoPro app

Both teams had the kit up and running with minimal support, and both setups seemed to offer similar functionality. The GoPro has more settings and a removable sdcard which could be a benefit, as video recording takes up loads of memory.
There are some interesting points with both devices  that need consideration however.

When using the appleTV setup both devices must be on the same wireless network. This means a personal appleTV setup carried to a teaching space is ok, but slightly trickier is one leaves the device setup in a room, as it will require it’s own eduroam account, which may not be popular with IT depts. In order to setup an eduroam account one needs to connect the apple TV to a modern mac, and run the configurator app, which is a bit of bother.

The GoPro bypasses the problems of requiring an eduroam account by acting as it’s own streaming server, and in order to connect the app one has to first connect to its wifi network. The downside of the GoPro is that it streams to a mobile device, which is slightly harder to then connect to a screen, we used an adaptor cable, and to be honest were quite surprised when it worked. There is a way of accessing the GoPro stream via a PC web browser, but it seems quite a faff.
Our next Demo failed, probably due to the conference centre wifi, but I’m not totally sure.
I tried it again as soon as I got back to the office and it worked fine.
Reflector2  works in a similar way to the appleTV, screen sharing requires both devices to be on the same wifi network, and the person sharing their screen has to swipe up to reveal their “Airplay” settings, and then pick the device to stream to, The upside of reflector is it only costs around £10 and runs on your laptop, so if you already take a laptop to your lectures/demos, it doesn’t require much other work. It also (in theory) allows android (and windows phone) users to share their screens, although I’ve had no luck with my Nexus 4 or Nexus 7.
A big difference is that it allows multiple screens to be shared simultaneously, we’ve tested it with 9 devices before it all went wrong.

9reflections

As an added bonus individual shared screens can be recorded on the laptop, I’ve no idea what would happen if you tried to record 9 simultaneously, but it would probably be ugly. Whilst you could have multiple mobile devices streaming from their cameras, Reflector seems to lend itself to sharing sketches, or photographs to compare and contrast.
After spending most of the session looking at sharing detailed work, we moved to sharing at a grander scale.
The SWIVL device is a small motorised base unit that can hold an iPhone, or iPad, and will track the movements of a presenter who wears a small wireless lanyard.
This lends itself to more expansive demos, maybe where those watching are viewing remotely, so we paired it up with an iPhone running Periscope, which streams to the web.
It is worth noting that whilst I’ve found the cheaper basic appleTVs work better in conference mode setting  the new devices have a periscope app, which could make connecting easier…

We closed the demo using Nearpod which allows the presenter to control the screens of the delegates whether they are in the room or not, and push slides, links questions and activities out to them, and then share the responses back.

Nearpod

For University of Brighton Folk on Monday 14th March 12-1 in G4 I’ll be running a Lunch hour app swap, where we’ll revisit the hands on part of the session, and I’ll bring along:
A visualiser, an AppleTV and GoPro, Reflector2, SWIVL, Periscope and Nearpod.
…and of course there’ll be a chance to share your ideas and favourite apps.

See you there.

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1 Comment »

  1. Craig Wakefield says:

    Interesting stuff. I’m currently looking at something similar with a tutor who wants to livestream their teaching in a similar way. We’ve tested the Swivl – Periscope option, and also a GoPro – Periscope solution which works well, and now we are looking at hooking up an external mic. It was useful reading your findings!

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