Rationalizing Use of ICTs • Motivation • Unique instructional capabilities • Support for new instructional approaches • Increased teacher productivity
Required skills for the information age • Technology literacy • Information literacy • Search strategies • Recognition and evaluation of different types of information • Fight information overload • Communication literacy • Workspace ergonomics • Debugging
What is the Internet? • Vast, worldwide system of people, information and computers • Imagine millions of computers with diverse information all over the world connected...
History • 1969: Advanced Research Projects Agency Network (ARPANET) developed by DARPA of the United States Department of Defense • 1983: first TCP/IP-wide area network by the National Science Foundation • 1990’s: European Organization for Nuclear Research (CERN) publicized the new World Wide Web project; Tim Berners-Lee had begun creating HTML, HTTP and the first few Web pages at CERN. • More on http://www.isoc.org/internet/history/brief.shtml
What the Internet offers? Information • any information can be obtained easily on the Internet.
What the Internet offers? E-Mail (electronic mail) • enables us to exchange messages throughout the world with people- friends, colleagues, relatives and even strangers. • Now, millions of people have e-mail addresses which can be recognized by the “@” sign • Examples of web based e-mail programs are Yahoo!, Hotmail / MSN, Google Mail
What the Internet offers? Programs and Applications • games, utility programs, freeware softwares and others • Downloadable or run from the web Examples: http://www.download.com/ http://www.google.com/a/org/
What the Internet offers? Discussion groups / Forums • we can meet people with similar taste and preference as ours. Example: http://groups.yahoo.com http://pinoymtbiker.proboards7.com/
What the Internet offers? Entertainment • browse at current movies or listen to over thousands of sound files including MP3 files http://music.download.com/ http://www.youtube.com/
What the Internet offers? Social Networking - Online networking among friends, acquaintances and the like Examples: http://www.friendster.com http://www.facebook.com
What the Internet offers? Wikis • Wiki is a piece of server software that allows users to freely create and edit Web page content using any Web browser. Wiki supports hyperlinks and has a simple text syntax for creating new pages and crosslinks between internal pages on the fly. Examples: http://www.wikipedia.org http://www.citizendium.org
What the Internet offers? Streaming Media • Many existing radio and television broadcasters provide Internet 'feeds' of their news, as well as live audio and video streams • Webcast / Podcast • Video chatrooms and Video Conferencing Examples: http://www.inquirer.net/ http://www.apple.com/itunes/store/podcasts.html
What the Internet offers? Voice Telephony (VoIP) • VoIP stands for Voice over IP, where IP refers to the Internet Protocol that underlies all Internet communication. This phenomenon began as an optional two-way voice extension to some of the Instant Messaging systems • VoIP can be free or cost much less than a normal telephone call, especially over long distances.
What the Internet offers? Photo Albums • Flickr • Picasa • Photobucket
What the Internet offers? Instant messaging or IM • a form of real-time communication between two or more people based on typed text. The text is conveyed via computers connected over a network such as the Internet. • real-time communication and allows easy collaboration • Most systems allow the user to set an online status or away message so peers are notified when the user is available, busy, or away from the computer • It is possible to save a conversation, so as to refer to it later
Instant Messaging • Samples of Instant Messaging Programs - Yahoo Messenger - MSN Messenger - Google Talk - Meebo • Mobile instant messaging
What the Internet offers? Blog (short for web log) • a user-generated website where entries are made in journal style and displayed in a reverse chronological order. • Blogs provide commentary or news on a particular subject, such as food, politics, or local news; some function as more personal online diaries
Blogging Sites • Blogger – http://www.blogger.com • Wordpress – http://www.wordpress.org • Typepad – http://www.typepad.com • Livejournal – http://www.livejournal.com • MSN Spaces - http://spaces.live.com • Yahoo 360 – http://360.yahoo.com
What the Internet offers? On-line shopping order goods and services on the Internet just sitting comfortably. Example: http://www.myayala.com/ http://www.ebay.com/
Benefits of using the Internet • Comprehensive nature of information and services • Information exchange • Information location • Widely available • Easy to use : point and click • Highly visual and graphic
Issues about the Internet • Objectionable materials and predators • Viruses • Privacy and security • Intellectual property rights • Netiquette • Socialization
Internet uses in education • Finding, analyzing and evaluating information • Communication • Collaboration • Publication
The World Wide Web (WWW) • Also known as “the Web” Technical definition: WWW is all the users on the Internet that are using the Hypertext Transfer Protocol (HTTP)
What is a website/ page/ homepage? • A Web site is a collection of related Web pages that you can access electronically. • Web pageis an electronic document on the Web. • The first page in a series of related documents or a site is called a home page
HTML : Hypertext Markup Language The standard set of codes used on the Internet to design and view World Wide Web pages. Sample HTML <html> <head> <<title>QHS</title> </head> <body> <p><b>Welcome to Quipayo High School</b></p> </body> </html>
Web Browser • A browser is a computer program that enables you to view web pages and access the Internet • Examples of browsers are: Internet Explorer (IE), Firefox, Safari, Opera, and Netscape
Favorites (Bookmarks) • As you use the Web, you will find sites that you want to re-visit. You do not have to write down the URL for those sites. You can use Explorer to save your favourite URLs for you in the Favourites folder. To do this, once you arrive at a site that you want to save, click on: • 1. Favorites • 2. Add to Favorites • The term ‘Favorites’ is often used interchangeably with ‘bookmarks’; saved URLs are, in fact, better known as bookmarks.
Organizing your Favorites Collection To start organizing your bookmarks, select Favorites, Organize Favorites. After you do that, a new dialog window will appear.
You may organize your bookmarks by placing them in subfolders, renaming the bookmarks, deleting them, just as you would with your files in Windows Explorer.
Bookmarking on the Web • Del.icio.us http://del.icio.us/ • Google Notebook http://www.google.com/notebook
Search Services Web Portal A Web portal is a single point of access to information which is • Linked from various logically related internet based applications and • of interest to various type of users • Portals present information from diverse sources in a unified way. They provide an excellent way for enterprises to provide a consistent look and feel with access control and procedures for multiple applications, which otherwise would have been different entities altogether. • Examples are Yahoo, MSN
Search Services Search Engines • Google – www.google.com • Yahoo! Search search.yahoo.com • Yehey! www.yehey.com • Altavista – www.altavista.com • Hotbot – www.hotbot.com • Excite – www.excite.com • Ask – www.ask.com
Search Services How do search engines work? • Search engine databases are selected and built by computer robot programs called spiders – crawling on the WWW. • They cannot think or type a URL or use judgment to "decide" to go look something up and see what's on the web about it. (Computers are getting more sophisticated all the time, but they are still brainless.)
If a web page is never linked to in any other page, search engine spiders cannot find it, unless its URL is sent to the search engine companies as a request that the new page be included. • After spiders find pages, they pass them on to another computer program for "indexing." Text, links, and other content in the page are stored in the search engine database's files so that the database can be searched by keyword and whatever more advanced approaches are offered, and the page will be found if your search matches its content.
Ranking of websites • Word proximity and placement • Popularity - a link to a page is a vote for it • Importance - traffic, popularity of pages linking to a page • Subject specific • Some types of pages and links are excluded from most search engines by policy. Others are excluded because search engine spiders cannot access them. Pages that are excluded are referred to as the "Invisible Web" -- what you don't see in search engine results.
Tips on Searching the Internet • Choosing search terms • Multiple search terms • Phrases • Do not include common or question-oriented words like a, an, the, and what • Negative and positive terms • minus sign ("-") in front of words related to the meaning you want to avoid • plus (+) sign to that word or those words in your search
Tips on Searching the Internet • Filter or field searches • intitle: • inurl: • site: • Boolean operators and parentheses • AND, OR, NOT or AND NOT, and ( ). Must be capitalized. • You must enclose terms joined by OR in parentheses (classic Boolean). • Note: ( ) or nesting is not available in Google or Ask
Tips on Searching the Internet • Quotation marks (“ “) • - put around the search terms that you want • Truncation (*) • - ex. develop* - searches phrases or sentences that contains develops, developed, developing, development • Hyphenation in between words • - searches all forms of the term, whether spelled as a single word, a phrase or hypenated
Tips on Searching the Internet • Similar words (~) • - searches for a word and all its synonyms • Number range search • - Follow search terms with beginning and ending numbers, separated by two periods. • - Can be used one sided, as less than or greater than • Limiting searches to filetypes • - filetype: or ext: • Definitions and encyclopedic lookups • - define:
Tips on Searching the Internet • Translations • Click Translate the page after a page in a foreign language • Paste a URL or a piece of text at http://www.google.com/language_tools • Calculator and Conversions • - Mathematical functions (+,-,*,/,% of, nth root of, sqrt(nn), ^ for exponentiation) • - Advanced math (Trig: sin, cos, tan, sec, csc, cot, etc.; Inverse trig: arcsin, arcos, arctan, etc.; Hyperbolic trig: sinh, cosh, tanh, etc.; Logarithms; Exponential functions; Factorials; and more)