Notes
Slide Show
Outline
1
Digital Delivery for Education:
More than just bits & bytes
  • Mike Kern
  • Wisconsin Educational Communications Board
2
“At your door in 30 minutes—or it’s free”
3
Not quite—but we’re learning a lot—
and so are they!
4
Lessons from a variety of projects
5
Feedback from Cherokee Middle School
  • “Of the three, datacasting was the best”
      • School technology specialist
  • “It provided students a way to easily use a wealth of resources”
  • “Teaching history could become less chronological…have much more depth”
  • “Students had an authentic learning experience”
      • 8th grade teacher
6
What do educators want? Part two
  • 46 educators rank content options – Fall 2002
  • Package of searchable rich media & other resources (DAM) – 1.70 (on 1=high to 4=low scale)
  • Interactive/enhanced TV (resources wrapped around episode) – 2.23
  • Access to video episodes or clips, but fewer other assets –2.77
  • Access to other providers’ resources (museums, etc.) using DAM –3.09
7
What do educators want? Part two
  • 44 educators rank delivery options – Fall 2002
  • Datacasting –2.01 (on a 1=high to 5=low scale)
  • Internet –2.46
  • Pre-loaded hard drives on network –3.30
  • Via digital cable/satellite STBs –3.44
  • Shipped CDs or DVDs –3.57
8
Design, production, digital format issues
  • Age appropriate, interpreted for use
  • Suggested inquiry paths to aid teacher prep
  • Closed-captioning needed
  • Succeed at a few things first, then build upon
  • Get systems integrator for complex projects
  • Lots of QA & field testing
  • Keep time frames realistic
  • Indexing deeply takes time – 8:1 ratio for clips
  • Small files sizes, even for datacasting


9
Working on interdisciplinary teams
  • Keep all informed of big picture
  • Have project coordinator involved in all aspects
      • of day-to-day activities
  • Ask all groups about needs, issues
  • Scheduling around 24/7 operations
  • Assume nothing
10
Datacasting issues
  • Follow instructions carefully
  • How would we make this a smooth part of daily broadcast operations?
  • Problems using entire bandwidth we dedicated to datacasting
  • How ensure reception—acknowledgement server, forward error correction, repeating?
  • How could hundreds, thousands of receivers be supported?
11
Technical issues at schools
  • Schools vary widely – aim for LCD?
  • School filtering & proxy servers
  • Extensive on-site technical tests first
  • How much server capacity is enough?
  • Need to support diagnosis during initial use
  • FOD – datacasting software fixes on demand
12
Network issues at school
13
Datacasting & other options
  • CDs were least desired, but most reliable
  • Multiple delivery methods may serve best (still took 20 hours to datacast about 8 GB)
  • Consistent datacasting adds up (sent 90 GB in 14 days of testing with opportunistic data only)
  • Datacasting could allow DVD content to be used on computers without DVD drives
14
Evaluating datacasting options
  • We’ve tested Triveni, Skystream & Kencast
  • Some factors to consider:
    • Ease of installation
    • Reception
    • Scheduling of datacasts
    • Monitoring of receivers; ensuring reception
    • Delivers consistent datastream
    • Security, encryption of selected content
    • Management of data storage


  • Let’s challenge them to a shootout!
15
Teacher professional development
  • Introduction & full day of training
  • Provided hands on training and allowed for lots of brainstorming
  • Instructional design skills – taught in preservice?
  • Needed release time to be trained
  • Metatag list provided, but too little time to prep
  • Depth of content—better for extended project
  • In-service videos could be part of package
16
Students and tech skills
17
What can schools support? Part two
  • Middle school had to upgrade all lab computers
  • Consider lab availability – not like TV in class
  • What will network allow? (CD drive was hidden)
  • Lots of CDs called for notebook system
  • Internet to classroom doesn’t mean easy to use with entire class
  • In focus groups, concerns expressed about server costs
18
Digital rights issues
  • We need answers to these quickly because one of the most common questions we heard was:


  • “Can we keep it?”
19
"Any questions?"
  • Any questions?
  • (We’ve still got plenty, but we’re excited about the future.)


  • www.ecb.org/dtv


  • mkern@ecb.state.wi.us