Wednesday, November 28, 2012

Massive Open Online Courses (MOOCs) and Their Drawbacks



MOOCs (Massive Open Online Courses) are spreading, and I think it's a great thing for education. One of my students took a stanford class in probability in his spare time. For lots of kinds of learning, this is the way to go, the future.

I was reading a good article in University Affairs about them (recommended)
http://www.universityaffairs.ca/all-about-moocs.aspx

If you want to check out available courses, try:


But I have to disagree with the article on one of its criticisms (p21 in the print version):

For one, dropout rates for MOOCs are exceptionally high. Dr. Siemens estimates that about 10 percent of registrants in his MOOCs (albeit smaller versions of the high-profile U.S. type) complete the course. Coursera’s Dr. Ng gives figures that are in the same ballpark: of 104,000 students who enrolled in his online machine-learning class last year (an earlier iteration of the Coursera version), 46,000 submitted at least one homework assignment, 20,000 completed a substantial portion of the course and 13,000, or 12.5 percent, passed.
This is presented as a problem that needs to be addressed. But what exactly is the problem here?
To me, it's like saying that there is a problem with movies on television because a high percentage of people stop watching the movie before it's over.

The fact is, when people can get something free, it lowers their threshold for trying stuff they might not otherwise. They take risks, they don't stick to what they know and what they're already good at. That's a very, very good thing for education like this.

Suppose, for example, somebody has always wanted to learn probability, but was not great at math. He signs up for a MOOC in probability, and gets a lot out of it. But then his life gets busy and he drops out with only half a semester's worth of probability.

If we see dropping out as a problem, then to solve it we'd either want this person to stay in the class, never mind that he has a new baby, and finish, or we'd want him to never have signed up. Aren't both of those worse outcomes than what actually happened? And when I say "actually happened," I mean in my made-up example.

People should be willing to jump into difficult classes that they're not sure they have the power to finish, if there's not failure grade or other downside. If someone signed up for 30 MOOCs and drops out of all but the one that's best for her then it's nobody's loss, and the student's gain. To me, a high dropout rate is a good sign. It's a sign that people are taking chances with it. They might learn a bit and leave, but they also might love it. Might finish it and learn a whole new field. Might find a new direction in their life.

Let them have that.

Pictured: Five burrowing owls. They all started the course on burrowing; only two passed. From Wikimedia Commons.

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Tuesday, November 27, 2012

Jim's Law of Animation, Comics, and Puppetry Partially Vindicated



In 2007 I shared my views on animation.
http://jimdavies.blogspot.ca/2007/08/jims-law-of-animation-comics-and.html

In it I mentioned that the animated film Grave of the Fireflies should have been live action. Well guess what? Turns out it's been done twice so far. Japan made one in 2005 for TV, and then another in 2008. There's making a feature film soon, too.
http://io9.com/5963442/the-worlds-most-depressing-anime-movie-is-getting-a-live+action-adaptation

I feel vindicated. That is all.

Pictured: Akitani Pond Grave of the Fireflies (from Wikimedia Commons)

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Wednesday, November 14, 2012

My Hanging Pinball Table


Ottawa had its own Pinball Conference, the Ottawa Pinball and Gameroom Show 2012
http://ottawapinball.com/

I wished I'd brought earplugs, but it was a great time. While I was there I saw this pinball table (not sure if that's the right name for it-- the piece of wood that the ball rolls on) for sale. I thought of hanging it up, but it was huge. Did I really want to take it home on the bus? Would my beloved like it?

I got to talking to the person selling it and he mentioned that some people put Christmas lights behind the colored plastic. My eyes lit up. After bargaining him down to $20 (cheap!) I brought it proudly home.

I ordered Christmas lights and strung them around the back so that the holes had lights behind them. Some of the empty holes (places for things to go through) I covered with some reddish-purple acetate I got from the art supply store. My dad helped me with all of this.

I brought it to my office at school and plugged it in. I love it. The lights are LED and draw so little energy that I just leave it on all the time. The little box that changes the lighting pattern fits perfectly into a big hole in the bottom of it. People can see it as they walk by.

You can see a video of it working here (at the end of the video you can see my badass treadmill desk-- that will be the subject of a future post):




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