welcome, edpsy 387 students!. who am i? jim levin department of educational psychology college of...
TRANSCRIPT
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Welcome, EdPsy 387 students!
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Who am I?
Jim Levin
Department of Educational Psychology
College of Education
My background
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Who are you?
• Post in the WebBoard “Welcome” conference– Your name– Where you work and what you do– Your goals for this class
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Introduction
• Course web site: http://www.ed.uiuc.edu/courses/edpsy387/fa01/
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Plan for EdPsy 387
• Project-oriented
• Strong links to your own interests
• Highly interactive
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Project-oriented course
• Mini projects
• Major project
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Educational uses of the web:“From surfing to serving”
• Initially people see the Internet as a vast source of information
• The web as a distributed hypermedia
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Hypertext & Hypermedia
• Our class web page as a hypertext• What is hypertext?• Text that can be read in multiple ways• Print hypertexts?• Hypermedia:
hypertext+graphics+sound+video+animation+etc.= hypertextual multimedia
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The World-Wide Web
• A distributed hypermedia
• Different parts can be on different computers all around the world, with hypertextual links via the Internet
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Web surfing
• Web “surfing”– Advantages– Disadvantages
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Surfing to Serving
• Web Serving:– Advantages– Disadvantages
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Education and the web
• The Global Schoolnet web site– Harnessing the Power of the Web
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Search Engines
• Databases of web resources• Two kinds
– Directories (human classified) - Ex: Yahoo– Web crawler-based (not human classified) - Ex:
Excite
• Which to use?– Use whichever ones you find useful– When you don’t find one useful, switch to another
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Understanding URLs
• A unique address for each web resource
• Structure: what + which computer + which file
• Example: http://www.ed.uiuc.edu/courses/edpsy387/sp01/index.html
• What kind of resource: http:// -> Web file• Which computer: www.ed.uiuc.edu• Which file: courses/edpsy387/sp01/index.html
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Understanding Computer Names
• Domain names: used both for computer names in URLs and in email addresses (whatever is the to the right of the @ sign)
• Like a postal address, but with “.” instead of new line as separator
• Most general to most specific, right to left
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Example:www.ed.uiuc.edu • From the right: edu -> US higher education
institution– com --> US commercial institution– gov --> US federal government– org --> US non-profit– us --> US– mx -> Mexico– au -> Australia– Country code list: http://www.nsrc.org/codes/country-
codes.html
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Example:www.ed.uiuc.edu
• Next to the left: uiuc– University of Illinois, Urbana-Champaign
• Email example: [email protected]– Northwestern University
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Example: www.ed.uiuc.edu
• computers in the Education Building at UIUC
• www.beckman.uiuc.edu is a computer at the Beckman Institute
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Example: www.ed.uiuc.edu
• www --> a particular computer in Room 10 of the Education Building
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Sending/saving URLs
• Have to get the URL exactly right (sometimes case mAtTeRs; no spaces)
• Copy & paste is best
• Emailing a URL from your web browser– Advantages: can do anywhere– Disadvantages: need to set & then unset email
preferences
• Emailing yourself
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Using URLs to evaluate web sites
• Largest level domain: .edu vs. .com vs. …
• Subdomain elements: .ed.uiuc vs. .cs.uiuc
• Directory elements: /students/joe/ vs. /facstaff/chip/
• Institutional vs. personal pages: /deans/ vs. /~jlevin/
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Search Engines
• Yahoo & Open Directory: human classified databases of web sites
• Google, Excite, Hotbot, etc.: automatic databases of web sites
Web spiders
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For next week
• Post in the “Welcome” conference
• Skim through the Global Schoolnet website
• Search for an exemplary educational website, post in that conference the name, URL, and why you think it is exemplary
• Read Nan Goggin’s web design guide & skim the Yale Style Guide
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Digital Photo
• To be used (if you choose to do so) on your eportfolio web page or as your “signature” in WebBoard
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WebBoard
• A commercial web-based conferencing system
• Log in:
• Username: your net-id
• Password: your net-id (change it)
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C-Base
• A web-based computer-supported evaluation system
• Username: your net-id
• Password: your net-id (change it)