location-based mlearning reminders
Post on 10-May-2015
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- 1.Bjrn Hedin Royal Institute of Technology Stockholm, Sweden [email_address] http://twitter.com/bjornh Slides available athttp://tinyurl.com/iadis09 Location-based mLearning reminders
2. Quick overview In this study we have
- Built a J2ME application to study chemistry on mobile phones
- Built a J2ME application to remind students to use the chemistry application when they leave or arrive at places they have chosen are suitable for mobile studies
- Evaluated the use in two university level chemistry courses
3. Research questions
- What are students attitudes to Location Based Reminders for mLearning?
- How well can learning opportunities be detected using such a system?
- Which places are added, what strategies are used to detect learning opportunities?
- What are students attitudes to a simple (flashcard) system for mobile learning?
4. Background Previous studies/projects
- MUSIS project- Various content pushed to university students' mobile phones
- Education related reminders most popular content (more than fun videos, music etc)
- SimpleLearn - Reminders to study sent via email and SMS at times determined by an algorithm.
- Flashcard system for mobiles/desktop
- Reminders often occurred at inconvenient times
5. Idea The objectives of this study
- Why not try to send mLearning reminders based on location rather than time
- Easier to determine that "when I am on the bus on my way to the university" is a good time to study than "at 8.43 AM".
- Location can be determined using positioning of the student's mobile phone
6. Determining your location Mobile positioning
- Location Based Services for mobile phones is a rapidly growing area
- GPS often used but...
- No coverage indoors or underground
- Drains battery very rapidly
- Position of current GSM cell an alternative
- Available on low-end phones
- Coverage everywhere
- Low power consumption
- but less precise location (or not even a location at all)
7. Level of precision needed? Do we need 5, 50 or 500 meter accuracy?
- Symbolic places more important than coordinates, i.e. "At home", "At the university" or "On the metro
- Changes are important, i.e. "when I leave home and enter the metro
- Especially the metro is easy to detect
- For this functionality GSM cell based location could work out fine for Location Based Reminders (LBR)
8. The reminder application Basic functionality
- Detects places through GSM cell id (no coordinates)
- Students can add places (or meaningful locations)
- The phone searches for nearby GSM cells, and the students attaches a label to them (At home, Metro )
- Attach study reminders to places for arrive-, at- or leave-events.
- Next time the student enters or leaves such a place, a reminder is triggered asking if the student would like to study using the chemistry application
9. The reminder application Adding a new place 10. The chemistry application Basic functionality
- Flashcard-like system
- See a question
- Press button to see answer
- Self assessmentKnew answer well, to some extent or not at all
- Session of 10 questions
- Questions you didnt know answer to will appear again next time, questions you know will be replaced by new questions
11. The chemistry application Picture questions + self assessment 12. The chemistry application Text questions with short answers 13. The chemistry application Text questions with long answers 14. Results
- Technical problems encountered
- Results from user study
- 11 university students in two courses
- Content adapted for the courses
- Used applications for one week
- Suggested improvements
15. Implementation issues
- APIs to get cell information not available on all Java implementations and/or platforms
- Problems with implementing sound- and vibration alerts from Java programs running in the background
- Autostart of application
16. Problems with places One place associated with several cells
- Cell changes can be changed several times per minute even if the phone remains stationary
- Some cells appear very rarely, thereby making them difficult to detect
- Right: One hour at my office (red dot). Three cells detected. Five cells during whole day
- (Scale: Smaller circles = 500m)
17. Problems with places(2) One cell associated with several places
- The cells to the right can be connected to
- the university
- Metro station Tekniska Hgskolan
- Bus 4
- Difficult to know whether I arrived at the university or if I am just passing by in a bus
18. User study results Reminders
- Sometimes forgot to start application ->Autostart would be a good feature.
- Long time to detect departures from less densely populated areas (with large cells)
- Most appreciated reminders: When travelling by public transport.
- On-place-reminders not used much
19. User study results Places
- Most places added were informal learning environments
- The university was only added to be reminded when leaving the campus
- Everyone added at home
- Detecting places worked fairly well
20. User study results Suitable mLearning places
- Public transport was considered best
- Phone size convenient in cramped places
- Felt it was Bonus study timethey dont do much else useful anyway
- N ice break from other activities
- Easier to study on phone for 10 minutes than to open your books
21. User study results Motivation
- Bonus timestudy at places not possible otherwise
- F un way to learn
- Promotes regular studies
- Microlearning possible
22. Suggested improvements
- Add questions/flashcards of your own
- Share questions/flashcards with friends
- Let learning content be anything accessible via a URL
- Mobile web, v ideo, audio, Evernote, Google Docs, eBooks, local files
- Web interface + synchronization for easier editing of tags/URLs
- Learning portal with learning content/activities to choose from
23. Suggested improvements(2)
- Make it possible to attach several tags to one cell
- Implement add tag to current cell
- Implement continuous tagging mode
- Add time restrictions, i.e. Only weekdays between 8 A.M. and 8 P.M.
- Adaptive reminders, i.e. if reminders dont trigger actions, remind less often
- Do we really want students to get such reminders?
- Planning yourself?
- Increased stress?
- Perha ps very infrequent reminders could be good?
- You took the exam XXX six months ago. Would you like to review the exam questions?
25. Thats itQuestions?
- Slides available athttp://tinyurl.com /iadis09
- Follow me on Twitter athttp://twitter.com/bjornh
- Contact me via email at[email_address]