Slashdot Mirror


Presentation Scales In Massive Online Courses; Does Interaction?

lpress writes "Coursera has demonstrated that they can scale presentations in massive, open, online courses — they have reached over 1.3 million students in 195 countries since they were funded in April. But can they scale student interaction? As of this morning, 7,839 Coursera students had formed 1,119 communities on Meetup.com in 1,014 cities — many outside the U.S." On the whole, isn't that a positive outcome?

17 of 63 comments (clear)

  1. Isn't that good... by Anonymous Coward · · Score: 5, Insightful

    On the whole, isn't that a positive outcome?

    I dunno; are they forums where the blind lead the deaf or are they staffed with people who are able to answer questions correctly and quickly enough that students don't learn the wrong lessons?

    1. Re:Isn't that good... by White+Flame · · Score: 4, Informative

      They're staffed by the instructors and their assistants, and in my experience give quick and quality spoiler-free guidance and answers. The nice thing about a forum is that you're not getting off-the-cuff responses from one random assistant; they've got a chance to run it around the room and up the chain to give a better formed response than if you were to sit down with them one-on-one.

      And yes, it does scale. Any question that I desired to ask was already asked in the forums, with great answers and discussion around it, even sometimes ending up in new errata added to the video. By keeping this "interaction" persistent, it coalesces a ton of human redundancy out of the learning pipeline, effectively broadcasting the most effective parts of the interactions in a similar fashion as the videos, from a very conversational and relatable perspective.

    2. Re:Isn't that good... by AchilleTalon · · Score: 4, Informative

      Having followed about a dozen courses at Coursera and one at MITx. I believe there is still much room to improvement on Coursera's forum. The quality isn't equal. Some teaching assistants and Professors are outstanding. Others are so, so. The main point is that professors aren't paid to put their courses on-line. So, in some cases, the time commitment is just not there. Same thing apply to teaching assistants.

      The forum could be easier and more user-friendly searching isn't always easy. There is no performant search engine and classification with tags is depends on the students. Provided the number of students from many different locations and culture, it is easy to imagine not everyone is taking care about the tags.

      Beside that, you can usually find good help on the forum if you are up-to-date with the course material and not lagging to much behind, otherwise, you are reduced often to dig into the already existing threads to find your answers. There is not always a great willing to help those lagging behind. And, as I said, since there is no search engine, you may endup reading more pages on the forum than the actual course material to find the help and information you are seeking for. This can really be a time consuming task. At my sense, it should be a top priority in the list of the improvements to implement on the forum.

      For disabled students, the material isn't always available on time and isn't always accurate. That can be a concern for those needing it since they may at the end have much less time than others to complete the lessons, assignments, homeworks before the deadlines. This is a problem Coursera can easily fix by better planning the lauch of each course making sure a professor do not start a course without having already a given number of videos already adapted for disabled students. This is really just a planning issue. And, it is sad to say that disabled students may be penalized in a course by this lack of planning.

      For many teachers, this is the first experience at this scale, they need some guidance from Coursera which should be the primary ressource and should ensure the quality of the material by supervising the preparation and lauching of the new courses.

      I strongly believe in MOOC and despite my comments I believe Coursera did a great job. On the side of the on-line help on the forum, my experience with MITx is the forum environment at MITx was a little bit superior to Coursera's environment. Now, let see what edX will offer. Starting a new course today with them.

      --
      Achille Talon
      Hop!
  2. What's special about study groups? by AK+Marc · · Score: 5, Interesting

    Is it real interaction? Class interaction is talking to the professor for authoritative answers to questions, or in the case of the massively large science classes I took (CHEM 101 and PHYS 201-ish), they had a paid TA in the lab. Unless there is a paid TA in each of the 1000+ groups, they are nothing more than study groups, and aren't class interaction. There is no "official" answer to a question. There is no "interaction" with a class authority. That's not class interaction any more than friending a classmate on Facebook makes that classroom interaction (even if they meet in person, the difference is the lack of official representation in the group).

    1. Re:What's special about study groups? by redfield · · Score: 3, Insightful

      These are university courses. You don't learn anything useful by having someone tell you the 'right answer' to a made-up problem. The point of the problems is to learn to think about the issues and build the skills needed to find answers. Study groups are places where students can help each other build these skills. Even in face-to-face tutorials, a good TA doesn't just tell students the answers, but helps them find their own ways to the answers.

    2. Re:What's special about study groups? by AK+Marc · · Score: 2, Insightful

      I passed more than one university course with the help of identifying what the professor wanted to hear. Some lecture from their writings and theories and test from the book. Others read from the book and test from lecture notes and other supplimentary material. Interaction with the grade giver has value. Chatting with some chums isn't the same thing, no matter how "wiki" it feels. The truth isn't decided by committee. In a university course, the truth is decided by dictatorship.

      Granted there is a difference between learning about a subject and getting an "A" in a class about that subject. Given the choice, I prefer both to neither.

    3. Re:What's special about study groups? by xQx · · Score: 3, Interesting

      You can learn more about how Coursera works here: http://www.ted.com/talks/lang/en/daphne_koller_what_we_re_learning_from_online_education.html - It is far more than just "study groups".

      Now, I'm not sure what it was like at your university, but doing a science course at Monash, I realized there is a huge difference in people who can teach vs. people who can research. And universities love getting researchers who publish stuff so the university looks good. The end result - every one of our maths or CS teachers spent their time talking in a thick Indian accent while scribbling nonsense on the board which you frantically copied down without learning a DAMN THING.

      As for the TA's - well, they aren't exactly experts or authorities in themselves, usually your first year TA was a second year student; your second year TA is a third year student; your third year TA is a fourth year student ...

      Lecturer interaction at most universities doesn't live up to the promise.

      So how do people learn? Well the studies say it isn't by sitting in a room listening. Nor, is it about talking to an expert about the material and asking interesting questions. And importantly - nor is it by memorizing stuff by wrote, then regurgitating it for an exam.
      You learn best by USING what you've been taught (in fact studies* say one of the best ways of learning something is to try to teach it to others).

      What does that mean?

      Most of what you learn at university actually comes from you doing assignments (or using what you have read or have been told in a practical way).

      How does Coursera stack up?

      Well, they did research that showed that peer-marked assignments hold an extremely strong correlation to teacher marked assignments - so as a student of Coursera, once you've finished an assignment, you then get assignments from other students to mark. They send the same assignment to a second student who also marks it (cross marking) - so you do assignments (when you learn), they get marked, and you get a grade.

      Also, There is an "official answer" to questions - when they do exams, they don't just tell you what answers you got wrong, because they have hundreds of thousands of people doing the same exam, they offer reasons why you got that wrong answer. Thus giving personalized learning via machine.

    4. Re:What's special about study groups? by jasax · · Score: 2

      That's not 100% true. I just finished "Learning from data" offered online independently (of Coursera, Udacity,...) by Caltech, in concrete by Prof. Yaser Abu-Mostafa, who answered in person to most of the the questions promptly, in a couple of hours, even on Sundays. It was also true that the number of questions was not overwhelming, and usually were valid questions (I think stupid people didn't abound in the forum.) I don't know how many people was in the class, but hundreds, probably. BTW, a very nice class, I learned a lot, and it just started the fall run a few days ago. I Recommend wholeheartedly. And in video classes you can listen to the professor when you are in the mood and have spare time, not at a precise time spot as in "real" classes. This is a big plus IMHO.

  3. Not exactly scaling well by artor3 · · Score: 4, Insightful

    So 8k students out of 1.3M have formed study groups? While that's good for those students, I'd hardly call it scaling well. That's a rate of 0.6%. Far, far lower than what you get in traditional universities.

    Do students really need to resort to a third party site to meet each other? If so, that's probably part of the problem right there. It seems like integrating social networking features right into Coursera would help to tremendously increase the rate at which students interact.

  4. Define "interaction"... by bgat · · Score: 4, Interesting

    On the whole, "interacting" via message boards is about as productive for education as typing with mittens on is for coding. Online courseware can provide students with reference materials and enlightening prose, the enhancement that comes with direct, rapid-fire human interaction is missing.

    This is why medical, law, and engineering schools heavily promote study groups where you appear IN PERSON to interact with your classmates. The nuance of the spoken word, and the nonlinearity of conversation, adds a powerful dimension to the student's internalization of the material in ways you just cannot duplicate with words on a screen or paper.

    --
    b.g.
    1. Re:Define "interaction"... by ShanghaiBill · · Score: 5, Interesting

      On the whole, "interacting" via message boards is about as productive for education as typing with mittens on is for coding.

      It depends on the message board. I have learned way more from Stack Overflow than I ever learned from a book. The content is well categorized, and both the questions and answers are rated in a way similar to Slashdot moderation. It seems to work very well.

  5. Re:having someone tell you the 'right answer' by TaoPhoenix · · Score: 4, Interesting

    Sorry, I profoundly disagree.

    Let's separate topics into "objective" and "subjective".

    The "Objective" ones are "easy" - math-engineering-parts of science. There is supposed to be "1.0001" right answers. (The "Right One" and the one in a million shot that the official answer is in fact incorrect.) So no amount of students thrashing around with no closure will help if at the end of the day the instructor-team doesn't produce the right answer. Then there's more thrashing about why 70% didn't get it right, and there is where you learn.

    On the subjective stuff, yeah, it heads more into what the Prof wants to hear, but a good Prof might actually have a clue. Look at the Legal Disputes we have going on here. We desperately need an IAAL whose paid specialty (from the EFF?) is to lead the discussions because however much we joke about the topic, law is hard, and 85% of our comments are flawed. The IAAL might make an error, but it's gonna be a much narrower error than most of our 200 comments.

    --
    My first Journal Entry ever, in 8 years! http://slashdot.org/journal/365947/aphelion-scifi-fantasy-horror-poetry-webzine
  6. Re1960s "tutorial" revolution in tertiary pedagogy by TaoPhoenix · · Score: 2

    I'll concede I haven't heard of that, but I'll also wager that a few modern online techniques can scale things much better. An online course, assuming a "tight budget" would employ a special second professor whose sole job it was to answer the forum comments. Then the Moderator system automatically puts him at for example +5 so that his remarks show up instantly. A Prof who really knows his stuff can drill out some 15 comments an hour, so say 4 hours of work a week for the class, pretty soon 60 authoriative replies to the best questions would shape the discussion, because the students would begin re-quoting the answer farther down the thread.

    In traditional University, I for example was lucky if the class ever got more than five questions combined in the entire hour because all the time was spent in the lecture. So I'd take 60 answers any day, because chances are at least a couple of them are close to the same question I had.

    --
    My first Journal Entry ever, in 8 years! http://slashdot.org/journal/365947/aphelion-scifi-fantasy-horror-poetry-webzine
  7. My Coursera Experience by jamej · · Score: 2

    Eventually a student needs to talk with and be guided by someone adept in the field. All this online stuff is okay but, I don't think you can become an adept through the online education medium. I am half way through my first Coursera course, I have just short of a million points with Kahn Academy, and I have done 14 Euler Project problems. Online is okay but you'll eventually need more. Good luck to you all. Jim

  8. Peer instruction by Roger+W+Moore · · Score: 3, Informative

    So no amount of students thrashing around with no closure will help if at the end of the day the instructor-team doesn't produce the right answer.

    That "thrashing around" as you put it is extremely educational. If you are the asker you have to think carefully and logically about the problem in order to phrase exactly what it is that you do not understand and for those answering they have to do the same to be able to make a rational argument as to why they are correct. This has been shown to lead to better understanding for everyone involved. In fact it is a recognised teaching technique called "peer instruction".

    You do still need an instructor to provide the correct answers and explanation at the end to ensure that everyone knows what the correct answer is but it is not necessary for them to be involved all the time in the discussion. Essentially it boils down to the fact that you learn a lot more if you can reason out for yourself your own answers. The instructor acts more like training wheels to stop you falling over. Eventually, if you become a scientist, you use the same technique - thrashing it out in journals - but since nobody knows the answer there is no instructor to come it and tell you the answer at the end...which is what makes it so much more fun!

  9. Re:having someone tell you the 'right answer' by Hognoxious · · Score: 2

    There is supposed to be "1.0001" right answers. (The "Right One" and the one in ten thousand shot that the official answer is in fact incorrect.)

    FTFY

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  10. 40-50 Courserans in my town's Meetup group by Beetle+B. · · Score: 2

    ... and they've never actually met!

    Don't be fooled by the raw numbers. Look at how many meetups they've had, and whether any of those Meetups actually occurred. My one lists 3 past meetups, but the location had never been finalized - no one actually got together and met up.

    --
    Beetle B.