welcome, edpsy 387 students!. who am i? jim levin department of educational psychology college of...
TRANSCRIPT
Welcome, EdPsy 387 students!
Who am I?
Jim Levin
Department of Educational Psychology
College of Education
My background
Who are you?
• Post in the WebBoard “Welcome” conference– Your name– Where you work and what you do– Your goals for this class
Introduction
• Course web site: http://www.ed.uiuc.edu/courses/edpsy387/fa01/
Plan for EdPsy 387
• Project-oriented
• Strong links to your own interests
• Highly interactive
Project-oriented course
• Mini projects
• Major project
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
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
The World-Wide Web
• A distributed hypermedia
• Different parts can be on different computers all around the world, with hypertextual links via the Internet
Web surfing
• Web “surfing”– Advantages– Disadvantages
Surfing to Serving
• Web Serving:– Advantages– Disadvantages
Education and the web
• The Global Schoolnet web site– Harnessing the Power of the Web
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
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
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
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
Example:www.ed.uiuc.edu
• Next to the left: uiuc– University of Illinois, Urbana-Champaign
• Email example: [email protected]– Northwestern University
Example: www.ed.uiuc.edu
• computers in the Education Building at UIUC
• www.beckman.uiuc.edu is a computer at the Beckman Institute
Example: www.ed.uiuc.edu
• www --> a particular computer in Room 10 of the Education Building
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
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/
Search Engines
• Yahoo & Open Directory: human classified databases of web sites
• Google, Excite, Hotbot, etc.: automatic databases of web sites
Web spiders
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
Digital Photo
• To be used (if you choose to do so) on your eportfolio web page or as your “signature” in WebBoard
WebBoard
• A commercial web-based conferencing system
• Log in:
• Username: your net-id
• Password: your net-id (change it)
C-Base
• A web-based computer-supported evaluation system
• Username: your net-id
• Password: your net-id (change it)