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if you encourage discussion in class, you have to be prepared for your students to arrive at conclusions that are unpalatable to you.

When I started, largely out of exasperation, to investigate the educational research literature for myself, I was pleasantly surprised to find there was some genuinely useful and scholarly work out there, which recognised the demands of different subjects and even admitted that university lecturers aren't all workshy and stupid... It's a shame that this better stuff doesn't seem to have fed through into the generic courses that most institutions offer. My personal advice to anyone starting out as a university teacher: find a few colleagues who take their teaching seriously (there are almost certain to be some in the department) and ask them for advice; sit in on their classes if possible; remember you'll never teach perfectly but you can always teach better; and close your ears to well-meaning interference from anybody who's never actually spent time at the chalkface!

Magueijo's could acknowledge that some people teaching these courses are genuinely concerned about improving teaching, and they need academics' help in designing better courses that do so. Sotto's side should acknowldge that however much they talk about how important teaching is (as if they discovered this, and academics did not know), they are not listening to the people attending their courses if those people feel utterly patronised and frustrated at the waste of their time. If academics treated their students like educationalists treat their student academics they'd be appalling teachers. A simple course allowing us to learn from a video of our own lectures would be immensely useful. Instead whole empires of education have developed that need to justify themselves and grow, so they subject us to educational jargon and make us write essays on the educationalist's pet theory.

Research shows that virtual schooling can be as good as, or better than, classes taught in person in brick-and-mortar schools

But that broad conclusion, which comes mainly from a couple of research syntheses published in 2001 and 2004, masks a lot of variation in the designs of online classes and in who takes them

to figure out under what conditions, what scenarios, in what content areas, and with what students.”

A talkback board. We gave everyone post-its in their registration packets and encouraged them to post their questions and comments, especially on the “gaps” in the conference, to the board. The board was directly outside the main conference room.

If you don't engage in multiple back channels, you may not see multiple use cases. Different tools are best for different types of interaction. Just because post-it notes didn't work at WebWise doesn't mean they don't work in galleries... as we know from the success of many talkback boards.If you ask visitors/participants to try a new tool, make sure it has as low a barrier to entry as possible. I have yet to see a museum set something up that is as simple to use as Today'sMeet.If discussion is the goal, you don't need user profiles - you just need a way to talk. If building up a personal profile/relationship with the institution is a goal, people need to uniquely identify themselves.Think about the possibility for asynchronous back channels that allow visitors (and staff) to share deep content with each other over time. Consider, for example, the rich conversation on Flickr about this image from the Chicago World's Fair. You could imagine a comparable conversation available to visitors onsite alongside exhibits or artifacts in the galleries.If possible, find ways to show the real-time location of people who are engaging in the back channel. The Mattress Factory's new SCREENtxt application uses a location-based system so that visitors can identify whether other participants are onsite at the museum or not.Make allowance for emergent back channels that visitors/users "bring with them" to the experience. These tools are particularly valuable for the "portal to the world" back channel use case. Every time I see a kid take a cellphone photo in an exhibit, I know that photo will immediately travel to Facebook, Flickr, Twitter, etc. How can your system capture that activity?