Podcastseminarium

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Podcastseminarium

  1. 1. Alternativ till videofilmer <ul><li>Björn Hedin </li></ul><ul><li>Royal Institute of Technology </li></ul><ul><li>Dept. of Media Technology </li></ul><ul><li>Stockholm, Sweden </li></ul><ul><li>[email_address] </li></ul>
  2. 2. Nackdelar med videoinspelningar <ul><li>Tar lång tid att göra bra </li></ul><ul><li>Kräver ganska mycket utrustning och kompetens </li></ul><ul><li>Kan vara svårt att läsa om läraren skriver på tavla </li></ul><ul><li>Stora filer </li></ul>
  3. 3. Enhanced podcasts <ul><li>Ljud + stillbilder. Lätta att producera från en PowerPoint presentation. </li></ul><ul><li>Kapitel-> lätt att navigera i en presentation. </li></ul><ul><li>Mycket mindre filer. </li></ul><ul><li>Lätt att läsa text, även på väldigt små skärmar. </li></ul><ul><li>Går att se på iPods/iPhones. </li></ul><ul><li>Går lätt att konvertera till 3gpp video som fungerar på mobiltelefoner (begränsad kapitelfunktionalitet). </li></ul>
  4. 4. Exempel Enhanced Podcasts
  5. 5. Enhanced podcasts på iPhone/iPod
  6. 6. <ul><li>Exempel nedan: 320x240 px. Vanlig skärmstorlek idag. </li></ul><ul><li>Ganska lätta att läsa om man valt tillräckligt stor font (minst 28 pt) </li></ul><ul><li>Dock inte enkel navigering. </li></ul>3gp på mobiler
  7. 7. Slidecasts <ul><li>Enhanced podcasts kräver vissa (gratis)-program, som man kanske inte vill installera (iTunes/QuickTime) </li></ul><ul><li>Slidecasts är motsvarande fast webb-baserat. http://www.slideshare.net </li></ul><ul><li>Dock: Kräver en del extraarbete att producera. </li></ul>
  8. 8. Exempel på Slidecasts
  9. 9. Studie gjord HT 2006 <ul><li>Samma kurs gavs tre gånger. </li></ul><ul><ul><li>A) 44 civilingenjörsstudenter. Endast traditionell undervisning. </li></ul></ul><ul><ul><li>B) 24 högskoleingenjörsstudents. Samtliga föreläsningar tillgängliga som enhanced podcasts vid kursstart. Motsvarande föreläsningar gavs även i klassrum </li></ul></ul><ul><ul><li>C) 51 civilingenjörsstudenter. Endast tillgång till enhanced podcasts. Inga föreläsningar. </li></ul></ul><ul><li>Kurs B och C utvärderades med enkäter. 88% svarade. </li></ul>
  10. 10. Usefulness <ul><li>Q: “I believe the podcasts were very useful.” </li></ul>
  11. 11. Review lecture content <ul><li>Q: “To be able to go back and review parts of the lectures you didn’t understand is very important.” </li></ul>
  12. 12. Comparision to regular lectures <ul><li>Q: “As a whole I prefer enhanced podcasts over regular lectures.” </li></ul>
  13. 13. Interaction <ul><li>Q: “ Not being able to immediately ask questions to the lecturer is a very big disadvantage with podcasts .” </li></ul>
  14. 14. Selected results - time- and place shifting <ul><li>Q: “The possibility to access a lecture podcast without having to be at a specific place at a specifict time (like a lecture) is very important.” </li></ul>
  15. 15. Navigation <ul><li>Q: “To be able to go back and forth and ‘jump’ between chapters in a podcast is very important.” </li></ul>
  16. 16. Mobility <ul><li>Q: “I would be very interested in watching lecture podcasts on an iPod/mobile phone on 'waste time', like when waiting for a commuter train, traveling on a train or bus etc (given that I owned suitable equipment)” </li></ul>
  17. 17. Mobility - no navigation <ul><li>Q: “ I would be very interested in being able to watch podcasts in my mobile phone, even if the possibility to jump between different images didn't exist, in effect making the entire lecture an ordinary video file.” </li></ul>
  18. 18. Include video of lecturer? <ul><li>Q: “ The podcasts would have been much better if they also had included a video showing the lecturer when he (I) talked.” </li></ul>
  19. 19. Selected results - how podcasts were used <ul><li>Only asked to the 16 students who used podcasts in the “blended” course. </li></ul>
  20. 20. Course results <ul><li>Course using only regular lectures - 27 of 44 completed course on time. </li></ul><ul><li>Course using both podcasts and lectures - 23 of 24 completed course on time. </li></ul><ul><li>Course using only podcasts - 49 of 51 completed course on time + award for ”exceptionally good evaluation results”. </li></ul>

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