1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

TV based education instead of Human teachers?

Tags:
  1. Oct 6, 2017 #26
    I am not negating that, but I would like to mention one thing. Even in places like MIT or Harvard etc, most students usually don't ask the questions. This is evident from video recordings of MIT lectures on YT. For most students, for the most of the time, it is a one way communication from teacher to student.
     
  2. Oct 6, 2017 #27

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Unusual. My experience as student in many academic classes was not like what you described. More NORMAL in a classroom is a few questions asked from students.
     
  3. Oct 6, 2017 #28
    But do you think, there may be at least a few students who never ask questions, may be because they feel shy to speak up ? What do you think percentage of such students in class may be ?( in a typical class). I studied in Rice U., Houston, for some period. There were a few students who never used to ask questions. My most of the education was in India where rote learning is cultural. Hence in India one finds % of such students in a class higher, especially if class size is larger.
     
  4. Oct 6, 2017 #29

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Thanks for the cultural information. Regarding some percentage of students in a class who never ask a question, this is not important. The best teacher-directed class instruction allows for immediate, live interactivity in case/ for whichever students want clarification on any details.
     
  5. Oct 7, 2017 #30

    ZapperZ

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor

    I'm going back to the very beginning here because people are talking over each other. There are actually TWO separate issues here, and unfortunately, this first post have mixed both of them.

    The first is the issue on whether, IF the class is nothing more than merely students listening to lectures (i.e. a one-way communication), then isn't it better (cheaper) to simply replace the teacher with a recorded video?

    The second is whether this methodology can give ".. worlds (sic) best education to the masses.."

    I have no issue with the first, because it is obvious that one can simply produce a series of videos and then let students after students, year after year, watch those videos.

    I disagree with the second conclusion, because many research on education has shown that this one-way, non-interactive means of communication isn't the BEST way to educate anyone.

    Anyone who is involved in online or blended classes would have noticed this. There have been many research on educational methods on the best way to conduct these classes. ALL of the online lesson management interfaces include many features that allow for 2-way communications between instructors and students, often done live! Studies have shown that students engage more intently and retain a lot more important information in the presence of active guidance, especially when they encounter something they don't understand.

    And then, of course, at the other end of the spectrum, we have Mazur's peer-instruction method, in which it is the antithesis of isolated, one-way delivery of lessons. Many schools are adopting this methodology as they see it being more effective and better than communicating the material to the students.

    So already, this one-way communication is not the "best" form there is out there for education. And based on many studies, it may be one of the worst form of education.

    Zz.
     
    Last edited: Oct 9, 2017
  6. Oct 7, 2017 #31

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    ZapperZ, I just do not understand if you are making the point in favor or in opposition to the "TV recording" method of lesson delivery. I can ALMOST undrstand your discussion, and then it becomes uncertain. Try again! Were you saying what I was trying to say (like post #29), or were you saying something else?
     
  7. Oct 9, 2017 #32
    I think he is saying that "He agrees that proposed method is cheaper but not better than interactive human teaching."

    To which I say that the pre-recorded video will keep on improving through iterative process over the years, incorporating suggestions from world renowned experts and students themselves. Every doubt a student can have will be incorporated in the video through subsequent versions. (Version 10.0, for example will be a lot better than 1.0)

    Now why such a video should not be able to answer students common doubts ? I think currently people are apprehensive about one-way teaching is because the course-material (video) does not go through such exhaustive iterations of improvements incorporating suggestions from world renowned experts. All the currently available videos are version 1.0.
     
  8. Oct 9, 2017 #33

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    Really hoping this is a typo.....
     
  9. Oct 9, 2017 #34

    ZapperZ

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor

    It is.

    Zz.
     
  10. Oct 9, 2017 #35

    ZapperZ

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor

    I thought I made it clear when I broke down the original post into two separate issues.

    1. I am NOT in favor of video/one-way communication education.

    2. If one-way communication is the ONLY means of education, then sure, a video lecture would save money.

    Have you ever taught a class?

    Just because something is said or written down, and even explained, doesn't mean the student WILL get it. I lost count how many times I've given students something, tell them explicitly what to do, and BAM, they make a mistake with it again! No matter how well you try to present the material, there will always, ALWAYS be questions. I see this all the time when the students have to learn from "pre-lectures" online videos. You get a whole spectrum of students with a whole spectrum of varying questions about the SAME video that they viewed.

    So I will claim that it is a fallacy to think that one-way communication education is effective. In fact, research in education methodology have shown numerous evidence that it isn't!

    Zz.
     
    Last edited: Oct 9, 2017
  11. Oct 9, 2017 #36

    Vanadium 50

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2017 Award

    The amazing thing about this thread is the idea that this is a new thing, and the weakness of one-way instruction is also a brand new discovery. This goes back to the early 50's. Zz's question "Have you ever taught a class?" is particularly relevant - it's the first question that gets asked whenever this idea comes back from the dead.
     
  12. Oct 9, 2017 #37
    Never been in a class where students werent regularly participating. Even in an english class I had that was 7:00 am. If I had to pay tuition to watch instructional videos I would stop going to school and just read the books on my own.
     
  13. Oct 9, 2017 #38
    The video below shows one educator's experience why one way education techniques often fail.

     
  14. Oct 9, 2017 #39

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    Yes, but it's also worth stating that distance learning has a long history. For example. the US Navy needed ways to provide content to sailors stationed on ships that were at sea for extended periods of time, and in that context it has largely been successful.

    http://www.worldwidelearn.com/education-articles/history-of-distance-learning.html
    https://www.seniornet.org/edu/art/history.html
     
    Last edited: Oct 10, 2017
  15. Oct 25, 2017 #40
    I always gave my lectures as a question and answer session, leading my students slowly towards discovery. The impact was very strong and the ideas, concepts, research methods, were very effectively communicated. Science, after all, starts by asking questions about nature.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Loading...