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Project Lighthouse
trace analysis
early results
Alan Dix
18/3/2016
Talis and University of Birmingham
http://alandix.com/academic/papers/LS2016/
2014/15
essential reading
55 students
two phases
teaching period
revision period
2015/2016
supplementary reading
3 students !
one document …
2015 run of course
Trace 1 – triage only
~ 50 secs
page 14 only
half-way through
document
Trace 2 – skim read and top-and-tail
~ 5 mins
4 minute gap
brief return
to text
top-and-tail
reads from start,
appears to get bored,
reads backwards
from end
Trace 3 – start at end
starts at end
but student is
not returning
first view of
document – odd
~ 10 mins
page with
nice diagrams
first
examples
2014 run – revision
revision
period
Trace 4 – full skim
assume browser
window left open
~ 2 mins
reads right
to end, but too
fast for proper
reading
Trace 5 – skim and pause
stops half-way
through document
~ 4 mins
Trace 6 – top-and-tail
~ 45 secs
Trace 7 – skim + pause
~ 7 mins
two and half mins
on this page including
short recap
pause on
pages with
diagrams,
but skip
the maths!
2014 run - teaching
teaching
period
Trace 8
~ 25 mins
~ 3 mins recap
plus skim to end
~ 10 mins initial
read to page 20
~ 10 mins on page 20
browser open
but not reading?
Trace 9
~ 3 ½ mins
skim to
page 21
1 min skim
to page 14
50 secs on
pages 14&15
25 secs on
page 21
skim
to end
Trace 10
~ 30 mins
another skim
forward then
gives up
20 mins on first three pages
working hard,
but finding it tough
quick peek
forward and skip
spends 8/9 mins
on pages 8 to 12
(state diagrams)
Trace 11 – repeated skims
7 hours
each consists of
two 1 or 2 min skims
30 mins apart
two 30 min sessions
about 7 hours apart
~ 30 mins
~ 30 mins
growing understanding
… and very messy
lots of work still to do!

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Trace Analysis - early results

  • 1. Project Lighthouse trace analysis early results Alan Dix 18/3/2016 Talis and University of Birmingham http://alandix.com/academic/papers/LS2016/
  • 2. 2014/15 essential reading 55 students two phases teaching period revision period 2015/2016 supplementary reading 3 students ! one document …
  • 3. 2015 run of course
  • 4. Trace 1 – triage only ~ 50 secs page 14 only half-way through document
  • 5. Trace 2 – skim read and top-and-tail ~ 5 mins 4 minute gap brief return to text top-and-tail reads from start, appears to get bored, reads backwards from end
  • 6. Trace 3 – start at end starts at end but student is not returning first view of document – odd ~ 10 mins page with nice diagrams first examples
  • 7. 2014 run – revision revision period
  • 8. Trace 4 – full skim assume browser window left open ~ 2 mins reads right to end, but too fast for proper reading
  • 9. Trace 5 – skim and pause stops half-way through document ~ 4 mins
  • 10. Trace 6 – top-and-tail ~ 45 secs
  • 11. Trace 7 – skim + pause ~ 7 mins two and half mins on this page including short recap pause on pages with diagrams, but skip the maths!
  • 12. 2014 run - teaching teaching period
  • 13. Trace 8 ~ 25 mins ~ 3 mins recap plus skim to end ~ 10 mins initial read to page 20 ~ 10 mins on page 20 browser open but not reading?
  • 14. Trace 9 ~ 3 ½ mins skim to page 21 1 min skim to page 14 50 secs on pages 14&15 25 secs on page 21 skim to end
  • 15. Trace 10 ~ 30 mins another skim forward then gives up 20 mins on first three pages working hard, but finding it tough quick peek forward and skip spends 8/9 mins on pages 8 to 12 (state diagrams)
  • 16. Trace 11 – repeated skims 7 hours each consists of two 1 or 2 min skims 30 mins apart two 30 min sessions about 7 hours apart ~ 30 mins ~ 30 mins
  • 18. … and very messy lots of work still to do!