INTERNET TRAINING FOR TEACHERS Rationalizing Use of ICTs • Motivation • Unique instructional capabilities • Support for new instructional approaches • Increased teacher productivity.
Download ReportTranscript INTERNET TRAINING FOR TEACHERS Rationalizing Use of ICTs • Motivation • Unique instructional capabilities • Support for new instructional approaches • Increased teacher productivity.
Slide 1
INTERNET TRAINING
FOR TEACHERS
Slide 2
Rationalizing Use of ICTs
• Motivation
• Unique instructional capabilities
• Support for new instructional
approaches
• Increased teacher productivity
Slide 3
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
Slide 4
A computer…
Slide 5
A network of computers...
Slide 6
A network of networks...
Slide 7
What is the Internet?
• Vast, worldwide system of
people, information and
computers
• Imagine millions of computers
with diverse information all over
the world connected...
Slide 8
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
Slide 9
What the Internet offers?
Information
– any
information
can be obtained
easily
on
the
Internet.
Slide 10
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
Slide 11
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/
Slide 12
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/
Slide 13
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/
Slide 14
What the Internet offers?
Social Networking
- Online networking among friends,
acquaintances and the like
Examples:
http://www.friendster.com
http://www.facebook.com
Slide 15
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
Slide 16
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
Slide 17
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.
Slide 18
What the Internet offers?
Photo Albums
– Flickr
– Picasa
– Photobucket
Slide 19
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
Slide 20
Instant Messaging
• Samples of Instant Messaging Programs
- Yahoo Messenger
- MSN Messenger
- Google Talk
- Meebo
• Mobile instant messaging
Slide 21
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
Slide 22
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
Slide 23
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/
Slide 24
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
Slide 25
Issues about the Internet
• Objectionable materials and predators
• Viruses
• Privacy and security
• Intellectual property rights
• Netiquette
• Socialization
Slide 26
Internet uses in education
• Finding, analyzing and evaluating
information
• Communication
• Collaboration
• Publication
Slide 27
QUESTIONS
?
Slide 28
Internet Services
Slide 29
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)
Slide 30
What is a website/ page/
homepage?
• A Web site is a collection of related Web
pages that you can access electronically.
• Web page is an electronic document on the
Web.
• The first page in a series of related
documents or a site is called a home page
Slide 31
HTML : Hypertext Markup
Language
The standard set of codes used on the
Internet to design and view World Wide
Web pages.
Sample HTML
<QHS
Slide 32
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
Slide 33
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.
2.
Favorites
Add to Favorites
The term ‘Favorites’ is often used interchangeably
with ‘bookmarks’; saved URLs are, in fact, better
known as bookmarks.
Slide 34
Adding Favorites
Slide 35
Organizing your Favorites
Collection
To start organizing your bookmarks, select
Favorites, Organize Favorites. After you do
that, a new dialog window will appear.
Slide 36
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.
Slide 37
Bookmarking on the Web
• Del.icio.us
http://del.icio.us/
• Google Notebook
http://www.google.com/notebook
Slide 38
QUESTIONS
?
Slide 39
Internet Searching
Slide 40
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
Slide 41
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
Slide 42
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.)
Slide 43
• 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.
Slide 44
• 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.
Slide 45
QUESTIONS
?
Slide 46
Tips on Searching the Internet
1. Choosing search terms
-
Multiple search terms
Phrases
Do not include common or question-oriented words
like a, an, the, and what
2. 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
Slide 47
Tips on Searching the Internet
3. Filter or field searches
-
intitle:
inurl:
site:
4. 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
Slide 48
Tips on Searching the Internet
5. Quotation marks (“ “)
- put around the search terms that you want
6. Truncation (*)
- ex. develop* - searches phrases or sentences that
contains develops, developed, developing,
development
7. Hyphenation in between words
- searches all forms of the term, whether spelled as a
single word, a phrase or hypenated
Slide 49
Tips on Searching the Internet
8. Similar words (~)
- searches for a word and all its synonyms
9. 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
10. Limiting searches to filetypes
- filetype: or ext:
11. Definitions and encyclopedic lookups
- define:
Slide 50
Tips on Searching the Internet
12. 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
13. 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)
Slide 51
Tips on Searching the Internet
Units of measure and conversions
•
•
•
•
•
•
•
•
•
•
•
•
•
MASS: kilograms or kg, grams or g, grains, pounds or lbs, carats, stones, tons,
tonnes, etc.
LENGTH: meters or m, miles, feet, inches, Angstroms, cubits, furlongs, etc.
VOLUME: gallons, liters or l, bushels, teaspoons, pints, drops, etc.
AREA: square miles, square kilometers, acres, hectares, etc.
TIME: day, seconds or s, years, centuries, sidereal years, fortnights, etc.
ELECTRICITY: volts, amps, ohms, henrys, etc.
ENERGY: Calories, British thermal units or BTU, joules, ergs, foot-pounds, etc.
POWER: watt, kilowatts, horsepower or hp, etc.
INFORMATION: bits, bytes, kbytes, etc.
QUANTITY: dozen, baker's dozen, percent, gross, great gross, score, etc.
NUMBERING SYSTEMS: decimal, hexadecimal or hex, binary, roman numerals, etc.
QUICK FACTS: currency in countries, population, biographies
Physical constants (atomic mass units or amu, Avogadro's number, Botzmann
constant, Faraday constant, gravitational constant, mass of a proton, mass of each
planet and of the sun, permeability of free space, etc.)
Slide 52
Tips on Searching the Internet
Safe Searching in Google
• http://www.google.com/preferences
• Go to Safe Search Filtering
I’m Feeling Lucky
• takes you straight to the most relevant website
that Google found for your query. You won't
see the search results page at all, but if you
did, the "I'm Feeling Lucky" site would be listed
on top.
Slide 53
Search Services
GOOGLE’S FAMILY OF DATABASES
Images
– One of the largest images database - 1.3+ billion (Yahoo Images boasts 1.5
billion)
News
– 4,500 news feeds, 30 days of news
Shopping
– Froogle - shopping sites from Google web page database + merchant-supplied
machine-readable catalogs
Groups
– Google Groups - Usenet Newsgroups back to 1981
Videos
– Videos submitted by people, from broadcasts and TV
– Viewable in Flash if ? button in the thumbnail
– Search close captioning to locate
Slide 54
Search Services
GOOGLE’S FAMILY OF DATABASES
Google Labs – labs.google.com
Various tools developed by Google
Google Scholar – scholar.google.com
journal articles and publications
Google Book Search – books.google.com
full text of some books with links on where to buy
Slide 55
More on Search Services
Subject Directories
• Built by information specialists
• Selected, evaluated, annotated
• Organized into subject categories
– Librarians’ Internet Index (lii.org)
• By a group of California library professionals
– Infomine (infomine.ucr.edu)
• By UC consortium of library professionals
– Academic Info (academicinfo.net)
• By a librarian in Arizona
Slide 56
More on Search Services
Large Directories
• Google Web directory
• http://directory.google.com
– 5+ million pages -
• About.com –
less than 0.04% of Google web
a collection of specialized directories
– search by subject
• Yahoo’s directory
• http://dir.yahoo.com
– 4 million UNevaluated pages - about 0.06% of Yahoo!
search
Slide 57
More on Search Services
Education Portals
• Educator’s Reference Desk
• http://www.eduref.org/
• Refdesk.com
• http://www.refdesk.com
• Kathy Schrock’s Guide for Educators
• http://school.discovery.com/schrockguide/
Slide 58
Exercise on Searching
Slide 59
CRITICAL EVALUATION
Why Evaluate What You Find on the Web?
• Anyone can put up a Web page
– about anything
• Many pages not kept up-to-date
• No quality control
– most sites not “peer-reviewed”
• less trustworthy than scholarly publications
– no selection guidelines for search engines
Slide 60
Generic Criteria for Evaluation (Hope
Tillman):
•Stated criteria for inclusion of
information
•Authority of author or creator
•Comparability with related sources
•Stability of information
•Appropriateness of format
•Software/hardware/multimedia
requirements
Slide 61
Evaluating Web Pages: Questions to Ask & Strategies
for Getting the Answers: An eight-point evaluation
checklist from the UC Berkeley Library.
•What can the URL tell you?
•Who wrote the page? Is he, she, or the authoring
institution a qualified authority?
•Is it dated? Current, timely?
•Is information cited authentic?
•Does the page have overall integrity and reliability as a
source?
•What's the bias?
•Could the page or site be ironic, like a satire or a spoof?
•If you have questions or reservations, how can you
satisfy them?
Slide 62
Evaluating Information Found on the Internet from
Johns Hopkins University (Elizabeth E. Kirk):
http://www.library.jhu.edu/researchhelp/general/evaluating/i
ndex.html
•Authorship
•Publishing body
•Point of view or bias
•Referral to other sources
•Verifiability
•Currency
•How to distinguish propaganda, misinformation and
disinformation
•The mechanics of determining authorship, publishing
body, and currency on the Internet
Slide 63
Finding and Evaluating Web
Sites
http://www.ithaca.edu/library/
training/think.html
Slide 64
Safety Procedures and
Appropriate Internet Use
• http://safekids.com/
• http://safeteens.com/
Slide 65
Getting started with teaching
about Internet literacy
• CyberSmart! becybersmart.org
• CyberSmart! Teacher’s Guide
Slide 66
Google Applications
• E-mail gmail.google.com
• Talk talk.google.com
• Groups groups.google.com
• Calendar calendar.google.com
• Docs and Spreadsheets
docs.google.com
• Page Creator pages.google.com
Slide 67
Other Google Tools
• Earth earth.google.com
- Flight Simulator –
http://www.insidedesign.info/blog
• Sketchup
http://sketchup.google.com/3dware
house/
Slide 68
Alternative to Google Earth
• Wikimapia – wikimapia.com
Slide 69
References
• techLEARNING.com http://www.techlearning.com
• Hahn, H. (1996). The Internet: Complete
Reference Second Edition. California: Osborne
McGraw-Hill
• Wikipedia http://en.wikipedia.org
• Finding Information on the Internet: a Tutorial
http://www.lib.berkeley.edu/TeachingLib/Guides/Inter
net/FindInfo.html
• Candau, Debbie, et al. Intel Teach to the Future
Master Trainer Version 3.1
• Google for Educators
http://www.google.com/educators/activities.html
Slide 70
Contact Information
Tel. Nos.: +632 752 1066; 752 1068;
752 1187
http://www.gilas.org
Slide 71
Luzon Operations Team
• Julie Bergania
[email protected]
+63917 8411884
• Pete Rabago
[email protected]; [email protected]
+63917 8818312
• Jerome Blanco
[email protected]; [email protected];
[email protected]
+63917 8818313
• Maui Salang
[email protected]; [email protected];
[email protected]
+63917 8818314
INTERNET TRAINING
FOR TEACHERS
Slide 2
Rationalizing Use of ICTs
• Motivation
• Unique instructional capabilities
• Support for new instructional
approaches
• Increased teacher productivity
Slide 3
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
Slide 4
A computer…
Slide 5
A network of computers...
Slide 6
A network of networks...
Slide 7
What is the Internet?
• Vast, worldwide system of
people, information and
computers
• Imagine millions of computers
with diverse information all over
the world connected...
Slide 8
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
Slide 9
What the Internet offers?
Information
– any
information
can be obtained
easily
on
the
Internet.
Slide 10
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
Slide 11
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/
Slide 12
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/
Slide 13
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/
Slide 14
What the Internet offers?
Social Networking
- Online networking among friends,
acquaintances and the like
Examples:
http://www.friendster.com
http://www.facebook.com
Slide 15
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
Slide 16
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
Slide 17
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.
Slide 18
What the Internet offers?
Photo Albums
– Flickr
– Picasa
– Photobucket
Slide 19
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
Slide 20
Instant Messaging
• Samples of Instant Messaging Programs
- Yahoo Messenger
- MSN Messenger
- Google Talk
- Meebo
• Mobile instant messaging
Slide 21
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
Slide 22
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
Slide 23
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/
Slide 24
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
Slide 25
Issues about the Internet
• Objectionable materials and predators
• Viruses
• Privacy and security
• Intellectual property rights
• Netiquette
• Socialization
Slide 26
Internet uses in education
• Finding, analyzing and evaluating
information
• Communication
• Collaboration
• Publication
Slide 27
QUESTIONS
?
Slide 28
Internet Services
Slide 29
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)
Slide 30
What is a website/ page/
homepage?
• A Web site is a collection of related Web
pages that you can access electronically.
• Web page is an electronic document on the
Web.
• The first page in a series of related
documents or a site is called a home page
Slide 31
HTML : Hypertext Markup
Language
The standard set of codes used on the
Internet to design and view World Wide
Web pages.
Sample HTML
<
Welcome to Quipayo High
School
Slide 32
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
Slide 33
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.
2.
Favorites
Add to Favorites
The term ‘Favorites’ is often used interchangeably
with ‘bookmarks’; saved URLs are, in fact, better
known as bookmarks.
Slide 34
Adding Favorites
Slide 35
Organizing your Favorites
Collection
To start organizing your bookmarks, select
Favorites, Organize Favorites. After you do
that, a new dialog window will appear.
Slide 36
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.
Slide 37
Bookmarking on the Web
• Del.icio.us
http://del.icio.us/
• Google Notebook
http://www.google.com/notebook
Slide 38
QUESTIONS
?
Slide 39
Internet Searching
Slide 40
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
Slide 41
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
Slide 42
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.)
Slide 43
• 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.
Slide 44
• 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.
Slide 45
QUESTIONS
?
Slide 46
Tips on Searching the Internet
1. Choosing search terms
-
Multiple search terms
Phrases
Do not include common or question-oriented words
like a, an, the, and what
2. 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
Slide 47
Tips on Searching the Internet
3. Filter or field searches
-
intitle:
inurl:
site:
4. 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
Slide 48
Tips on Searching the Internet
5. Quotation marks (“ “)
- put around the search terms that you want
6. Truncation (*)
- ex. develop* - searches phrases or sentences that
contains develops, developed, developing,
development
7. Hyphenation in between words
- searches all forms of the term, whether spelled as a
single word, a phrase or hypenated
Slide 49
Tips on Searching the Internet
8. Similar words (~)
- searches for a word and all its synonyms
9. 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
10. Limiting searches to filetypes
- filetype: or ext:
11. Definitions and encyclopedic lookups
- define:
Slide 50
Tips on Searching the Internet
12. 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
13. 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)
Slide 51
Tips on Searching the Internet
Units of measure and conversions
•
•
•
•
•
•
•
•
•
•
•
•
•
MASS: kilograms or kg, grams or g, grains, pounds or lbs, carats, stones, tons,
tonnes, etc.
LENGTH: meters or m, miles, feet, inches, Angstroms, cubits, furlongs, etc.
VOLUME: gallons, liters or l, bushels, teaspoons, pints, drops, etc.
AREA: square miles, square kilometers, acres, hectares, etc.
TIME: day, seconds or s, years, centuries, sidereal years, fortnights, etc.
ELECTRICITY: volts, amps, ohms, henrys, etc.
ENERGY: Calories, British thermal units or BTU, joules, ergs, foot-pounds, etc.
POWER: watt, kilowatts, horsepower or hp, etc.
INFORMATION: bits, bytes, kbytes, etc.
QUANTITY: dozen, baker's dozen, percent, gross, great gross, score, etc.
NUMBERING SYSTEMS: decimal, hexadecimal or hex, binary, roman numerals, etc.
QUICK FACTS: currency in countries, population, biographies
Physical constants (atomic mass units or amu, Avogadro's number, Botzmann
constant, Faraday constant, gravitational constant, mass of a proton, mass of each
planet and of the sun, permeability of free space, etc.)
Slide 52
Tips on Searching the Internet
Safe Searching in Google
• http://www.google.com/preferences
• Go to Safe Search Filtering
I’m Feeling Lucky
• takes you straight to the most relevant website
that Google found for your query. You won't
see the search results page at all, but if you
did, the "I'm Feeling Lucky" site would be listed
on top.
Slide 53
Search Services
GOOGLE’S FAMILY OF DATABASES
Images
– One of the largest images database - 1.3+ billion (Yahoo Images boasts 1.5
billion)
News
– 4,500 news feeds, 30 days of news
Shopping
– Froogle - shopping sites from Google web page database + merchant-supplied
machine-readable catalogs
Groups
– Google Groups - Usenet Newsgroups back to 1981
Videos
– Videos submitted by people, from broadcasts and TV
– Viewable in Flash if ? button in the thumbnail
– Search close captioning to locate
Slide 54
Search Services
GOOGLE’S FAMILY OF DATABASES
Google Labs – labs.google.com
Various tools developed by Google
Google Scholar – scholar.google.com
journal articles and publications
Google Book Search – books.google.com
full text of some books with links on where to buy
Slide 55
More on Search Services
Subject Directories
• Built by information specialists
• Selected, evaluated, annotated
• Organized into subject categories
– Librarians’ Internet Index (lii.org)
• By a group of California library professionals
– Infomine (infomine.ucr.edu)
• By UC consortium of library professionals
– Academic Info (academicinfo.net)
• By a librarian in Arizona
Slide 56
More on Search Services
Large Directories
• Google Web directory
• http://directory.google.com
– 5+ million pages -
• About.com –
less than 0.04% of Google web
a collection of specialized directories
– search by subject
• Yahoo’s directory
• http://dir.yahoo.com
– 4 million UNevaluated pages - about 0.06% of Yahoo!
search
Slide 57
More on Search Services
Education Portals
• Educator’s Reference Desk
• http://www.eduref.org/
• Refdesk.com
• http://www.refdesk.com
• Kathy Schrock’s Guide for Educators
• http://school.discovery.com/schrockguide/
Slide 58
Exercise on Searching
Slide 59
CRITICAL EVALUATION
Why Evaluate What You Find on the Web?
• Anyone can put up a Web page
– about anything
• Many pages not kept up-to-date
• No quality control
– most sites not “peer-reviewed”
• less trustworthy than scholarly publications
– no selection guidelines for search engines
Slide 60
Generic Criteria for Evaluation (Hope
Tillman):
•Stated criteria for inclusion of
information
•Authority of author or creator
•Comparability with related sources
•Stability of information
•Appropriateness of format
•Software/hardware/multimedia
requirements
Slide 61
Evaluating Web Pages: Questions to Ask & Strategies
for Getting the Answers: An eight-point evaluation
checklist from the UC Berkeley Library.
•What can the URL tell you?
•Who wrote the page? Is he, she, or the authoring
institution a qualified authority?
•Is it dated? Current, timely?
•Is information cited authentic?
•Does the page have overall integrity and reliability as a
source?
•What's the bias?
•Could the page or site be ironic, like a satire or a spoof?
•If you have questions or reservations, how can you
satisfy them?
Slide 62
Evaluating Information Found on the Internet from
Johns Hopkins University (Elizabeth E. Kirk):
http://www.library.jhu.edu/researchhelp/general/evaluating/i
ndex.html
•Authorship
•Publishing body
•Point of view or bias
•Referral to other sources
•Verifiability
•Currency
•How to distinguish propaganda, misinformation and
disinformation
•The mechanics of determining authorship, publishing
body, and currency on the Internet
Slide 63
Finding and Evaluating Web
Sites
http://www.ithaca.edu/library/
training/think.html
Slide 64
Safety Procedures and
Appropriate Internet Use
• http://safekids.com/
• http://safeteens.com/
Slide 65
Getting started with teaching
about Internet literacy
• CyberSmart! becybersmart.org
• CyberSmart! Teacher’s Guide
Slide 66
Google Applications
• E-mail gmail.google.com
• Talk talk.google.com
• Groups groups.google.com
• Calendar calendar.google.com
• Docs and Spreadsheets
docs.google.com
• Page Creator pages.google.com
Slide 67
Other Google Tools
• Earth earth.google.com
- Flight Simulator –
http://www.insidedesign.info/blog
• Sketchup
http://sketchup.google.com/3dware
house/
Slide 68
Alternative to Google Earth
• Wikimapia – wikimapia.com
Slide 69
References
• techLEARNING.com http://www.techlearning.com
• Hahn, H. (1996). The Internet: Complete
Reference Second Edition. California: Osborne
McGraw-Hill
• Wikipedia http://en.wikipedia.org
• Finding Information on the Internet: a Tutorial
http://www.lib.berkeley.edu/TeachingLib/Guides/Inter
net/FindInfo.html
• Candau, Debbie, et al. Intel Teach to the Future
Master Trainer Version 3.1
• Google for Educators
http://www.google.com/educators/activities.html
Slide 70
Contact Information
Tel. Nos.: +632 752 1066; 752 1068;
752 1187
http://www.gilas.org
Slide 71
Luzon Operations Team
• Julie Bergania
[email protected]
+63917 8411884
• Pete Rabago
[email protected]; [email protected]
+63917 8818312
• Jerome Blanco
[email protected]; [email protected];
[email protected]
+63917 8818313
• Maui Salang
[email protected]; [email protected];
[email protected]
+63917 8818314