internet for teaching and learning. understanding the web the web is a collection of publicly...
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Internet for Internet for Teaching Teaching and and LearningLearning
Understanding the WebUnderstanding the Web
The Web is• A collection of publicly accessible
pages (web sites) on the Internet• All use the same language (HTML) to
present information in a text and graphics format
• The Web uses hyperlinks to connect pages or web sites to each other
Understanding the WebUnderstanding the Web
Web Site• A series of related pages written in
HTML and stored on a Web server• Hyperlinks let viewers navigate
between pages• Web browsers translate HTML into the
text and graphics seen on a web page• Browsers let visitors browse through the
web site files stored on web servers
Understanding Web SitesUnderstanding Web Sites
• Every web server has a specific address called a Uniform Resource Locator (URL)
• URLs are preceded by http:// (hypertext transfer protocol)
• Http:// designate the communications protocol between web site servers
Understanding Web SitesUnderstanding Web Sites
Anatomy of a URL
Evaluating Web SitesEvaluating Web Sites
Web Sites should be:• Evaluated before using them in the
classroom• Well organized and logical to follow• Free of bias
Evaluating Web SitesEvaluating Web Sites
Web sites should• Have appropriate authority and
expertise• Clearly site sources• Not be selling a product or viewpoint
Multimedia on the WebMultimedia on the Web
• By incorporating multimedia, websites can address diverse styles
• Plug-ins may be needed to use multimedia
• Multimedia may increase download time and require greater bandwidth
Multimedia on the WebMultimedia on the Web
Graphics• Different graphic formats include:
• GIF (Graphic Interchange Format) images may be still or animated artwork
• JPEG (Joint Photographic Expert Group) images are typically used for photographs
Multimedia on the WebMultimedia on the Web
Audio• Sound clips can add dimension to a
Web page• Audio formats vary in download time
and playback• WAV and AU files often need to be
downloaded before being played
Multimedia on the WebMultimedia on the Web
•Streaming audio •plays files as they are downloading
•may require a (free) streaming audio player plug in
•Popular streaming audio players include Real Player and Windows Media Player
Multimedia on the WebMultimedia on the Web
Video• Video clips can add moving images to a
Web page• Streaming video allows for viewing as
the clip is downloaded• Due to bandwidth problems, images
may be somewhat choppy
Multimedia on the WebMultimedia on the Web
Virtual Reality• 3-D graphic environments that users
can manipulate and navigate• Typically requires a VR plugin• VR field trips can take students to real
or imaginary worlds
Search EnginesSearch Engines
• Programs that help users find information on the Web
• Web site creators register their URL along with key words and a brief description of their site
• Web sites URLs and key words are also extracted and added to search engines by spiders
Search EnginesSearch Engines
• Search engines maintain a data base of URLS, key words, and descriptions
• When users type in key words, search engines return hits - URLs that match
• When using search engines it is important to use precise key words
PortalsPortals
• Some sites that started as search engine sites grew into portals
• Portals offer a variety of other services including email and chats
• Portals are also “doorways” to other Web sites
• Unlike ISPs, portals do not provided connections to the Internet
Educational Web ResourcesEducational Web Resources
Online Publications• Magazines, newspapers, and journals
available via the Web• Articles can be saved or printed in
HTML or PDF formats• HTML formats require a web browser to
view or print them• PDF files need Acrobat Reader to view
or print them
Educational Web ResourcesEducational Web Resources
Professional Organizations• Most major organizations have a Web
presence• Resources from organization Web sites
include – News, articles, links, calendars, and
conferences• Subscribing to organizational listservs
can keep busy educators current on key issues
EducationalEducational Web Resources
Weblogs (Blogs) • Virtual online spaces for an
individual’s personal commentary• Some allow others to respond to the
ideas presented• Backtracks or Links to other blogs
can be included
Educational Web ResourcesEducational Web Resources
Governmental Sites • Local, state, and Federal web sites
offer valuable resources• Governmental resources can be
freely used • They are “owned” by taxpayers
Educational Web ResourcesEducational Web Resources
Education Portals• Dedicated to teaching and learning • Offer targeted resources for educators
including– Lesson plans– Teacher exchanges– Teaching tools
• Also includes resources for students and parents
Educational Web ResourcesEducational Web Resources
Favorite Links• Most educational Web
resources provide links to related sites
• Book marking these links gives quick access to favorite sites
Educational Web Resources
Classroom Management Tools• Some sites include downloadable or online
tools for teachers• Such tools include
• Puzzle Makers• Test Generators• Diagnostic Tests (learning styles, etc)• Electronic Grade Books
Educational Web ResourcesEducational Web Resources
Academic Tools and Resources• Other sites include downloadable or online
academic tools and/or resources• These include:
• Lesson Plans• Worksheet Generators• Reference Tools• Encyclopedias• Teaching Ideas and Exchanges
Web Enhanced InstructionWeb Enhanced Instruction
Enhancing Communication• Teachers can enhance classroom
communications via a class Web site• FAQs on a Web site can answer common
questions • Forums and email let people interact
asynchronously online• Chats allow for synchronous, recorded text
conversations
Web Enhanced InstructionWeb Enhanced Instruction
Building Bridges to Parents and Community
• Class web sites share what is happening in a classroom
• Posting current homework and class events keeps parents informed
• Involving the community and posting joint projects creates and supports partnerships
Internet IssuesInternet Issues
• Acceptable Use – How should the Net be used while at school?
• Privacy – What must be done to protect student’s privacy and still use class websites?
• Filtering – What must be done to ensure inappropriate web sites are avoided?
Teaching and the InternetTeaching and the Internet
• The Net holds enormous potential for teaching and learning
• The world’s knowledge base has become accessible
• Like other instructional tools, integration of the Net into instruction requires the skills of professional educators.