IT in Education: Foundation

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Introduction

• IT in Education Foundation
• Lee Fong-Lok, fllee_at_cuhk.edu.hk

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IT in Education Foundation

• Teachers IT Competency in Hong Kong
• Basic Concepts in Computer Networking
• Local Area Network (LAN)
• Wide Area Network (WAN)
• Internet and Intranet
• World Wide Web
• File Transfer
• Communications
• Internet Filtering
• Knowledge Construction Platform Learning
  Villages

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IT Education in Hong Kong
http//www.info.gov.hk/emb/public/it_table.html
4
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? ? ? ? Intermediate Level

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• ????30????

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• Word Processing II
• Presentation Software II
• Multimedia Production I
• Web Page Design I
• Internet/Intranet Applications
• Courseware Evaluation
• Chinese Character Input (Optional)
• Database I (Optional)
• Spreadsheet Operation I (Optional) ???

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Internet/Intranet Applications

• Internet, Extranet, Intranet and WWW
• Discussion Group, Newsgroup and ICQ
• File Transfer Protocol (FTP)
• Internet Filtering

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WWW and Internet TechnologyBasic Concepts in
Computer Networking
Personal Computer (PC)
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WWW and Internet TechnologyBasic Concepts in
Computer Networking
Computer Network A group of two or more computers
linked together.
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WWW and Internet TechnologyBasic Concepts in
Computer Networking
Local Area Network (LAN) A computer network where
the computers are geographically close together
(that is, in the same building).
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WWW and Internet TechnologyBasic Concepts in
Computer Networking
Sino Building 614
M1, Ho Tim Building
Web Server
mailserv
ftp server
Wide Area Network (WAN) A computer network that
spans a relatively large geographical area.
Typically, a WAN consists of two or more LAN.
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WWW and Internet TechnologyBasic Concepts in
Computer Networking
CUHK
Internet

• Internet
• A global network connecting millions of
  computers.
• INTERnational NETwork

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World Wide Web

• WWW or the Web.
• consists of a network of computers which provide
  Web pages to Internet users.
• These pages consist of hypertext which includes
  text (and pictures) to provide information along
  with links to other Web pages.
• Users access these pages using a browser which
  uses the addresses of the links to connect to and
  download the pages.

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WWW and Internet Technology Internet Access
www.yahoo.com
You
Internet
Access from a LAN You can access the Internet if
you are connected to a LAN, which is connected to
the Internet.
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WWW and Internet TechnologyInternet Services
Web Browsing

• Use HTTP (HyperText Transfer Protocol)
• Supported by the Web Server
• Client needs a Web-browser to access the web pages

Web page
Web Server
Web Client (via browser)
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WWW and Internet TechnologyInternet Services -
Webpage

• A Web page may contain text, images (.gif, .jpg
  format), audio, video objects as well as
  hyperlinks
• A hyperlink links to another Internet object,
  which is specified by a URL (Unique Resource
  Locator)
• There are two types of hyperlink
• Text based hyperlink
• Image based hyperlink
• A URL is the address of a particular Internet
  object

http//www.cuhk.edu.hk/fed/tutorial.html
Directory name
Protocol
Server name
File name
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The HTTP Protocols

• The Hypertext Transfer Protocol (HTTP) is the set
  of rules for exchanging files (text, graphic
  images, sound, video, and other multimedia files)
  on the World Wide Web
• It is the default protocol used in the web
  browsers

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WWW and Internet TechnologyInternet Services
File Download

• FTP (File Transfer Protocol) an Internet
  Protocol used to exchange files between computers
  on the Internet
• Lets try the followings
• ftp//ftp.cuhk.edu.hk
• http//www.cuhk.edu.hk

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The File Transfer Protocols

• The File Transfer Protocols (FTP) is a kind of
  protocol used in file transfer between two
  computers. It is commonly used
• When you have created some web pages and want to
  transfer it to the Web Server
• When you download files from some FTP sites on
  the Internet

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Using FTP to upload and download
File
download
upload
Web Server
Other users
To publish a webpage, you need to upload the
corresponding files to the web server.
Your PC
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Upload the web pages usingWS_FTP (an FTP
software)

• Start WS_FTP
• Click on the WSFTP logo
• Or ?? -gt ??? -gt Internet Tools -gt WS_FTP
• Create a new FTP profile

Click to create a new profile
The name of the server
Your account ID
Your password
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Using FTP
iHome ftp//iHome.cuhk.edu.hk Login
sxxxxxx Password xxxxxx
Learning Community ftp/course.fed.cuhk.edu.hk Lo
gin and Password to be assigned by the system.
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Upload the web pages usingWS_FTP (an FTP
software)

• Transfer your local files to the server
• The files are uploaded to the server using the
  File Transfer Protocol (FTP)

Files in your local hard disk
Files on the server under your own directory
Click on the arrow to upload the files
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Internet/Intranet ApplicationsIntranet

• Intranet
• An internal parts of a companys web pages
• Private, can only access within the organization
• Contains information and services which can only
  access by the staff and employees/students within
  an organization
• Security is important
• Use firewalls to restrict access from outside
  network
• Sometimes need login

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Internet/Intranet ApplicationsIntranet

• Example
• http//www.lib.cuhk.edu.hk/electronic/jol.htm
• Only students/staffs from CUHK can access to the
  above link (CU intranet)
• Only computers that are directly connected to the
  CU network can access to the server hosting these
  information information
• Example
• https//extranet.hku.hk/apptunit/
• You cannot access the For HKU Staff Only session

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Internet/Intranet ApplicationsIntranet
Intranet Web Server
Internet Web Server
Firewall (block external traffic)
Internet
Organization LAN/WAN

• Only computers which are behind the firewall
  can access to the Intranet Web Server

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Internet/Intranet ApplicationsNewsgroups and
Discussion Forums

• Purpose a place for exchanging information
  within a group of people
• Web based vs. non-web based
• Discussion groups Web based http//www2.fed.cuhk.
  edu.hk/ited/AppOfComp/Forum.htm
• Newsgroups Non-web based news//news.cuhk.edu.hk/
  cuhk.forum
• For newsgroups (non-web based), newsgroup client
  software is needed. You also need to subscribe to
  the newsgroup first
• (compare with hotmail and mailserv)

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ICQ (I seek you)

• ICQ ("I seek you"),
• the popular instant-messaging program that lets
  you communicate with friends and colleagues in
  real time.
• To seek out a friend on the ICQ network, simply
  enter his or her ICQ number, name, nickname, or
  email address.
• Once your contact list is set up, you'll be
  notified when your friends are online so that you
  can chat send instant messages, files, and URLs
  play games or just hang out.

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Windows Live Messenger
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Skype
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Internet Filtering

• There are very little control (or no control at
  all) over the contents that post in the Internet
• Not all are suitable for students/children
• Requires Internet filtering software to block
  unwanted sites

http//www.we-blocker.com/
http//www.surfcontrol.com
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Learning Villages Game-base Learning Environment
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Knowledge Structure in LV
Issue
Views
Relationship
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Learning Villages

• A system for students to learn while
  playingStudents
• A virtual world composed of villages and castles
• A village for the discussion around a topic
• A castle represents a WebQuest task
• A participant can build a village to raise a
  topic for discussion
• A participant can build a house to express own
  view
• Game elements to attract participants

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A Topic Village

• A village represent a topic, and is governed by a
  governor.
• A villager can build houses to represent own view
• A villager can respond to other views by
• Build a new house to represent own view, and link
  this newly build house to others. The road
  represents the relationship between the two
  houses.
• Go inside a house to make simple responses.

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Relationship between views (houses)

• Houses are linked by roads, each of which
  represents a relationship like
• My response is
• Deal with this first.
• My reflection is
• This is related to
• I have a different opinion
• Please try compare with this
• My analysis is
• Others
• The aims is to encourage developing new views and
  thinking

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Simple Responses within a house

• Yes, I agree
• No, I disagree
• Neutral

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How Knowledge Construction happens
What is WebQuest?
My response is
An inquiry-based activity on the web
My response is
Searching on the Web ----------------- I disagree
Deal with this first
What is inquiry
I have different opinion
This just web-searching
house
road
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How you can initiate and maintain discussion

• Decide on a theme for project-based learning
• Develop a Topic Village
• Assist discussion build house to
• Arouse discussion
• Guide discussion
• Guide discussion to the right track and delete
  those irrelevant houses, however, houses with
  wrong idea can leave there for students
  reference.

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How to ensure quality views

• Personal Reputations
• All participants can grade every message posted.
• No. of responses to a View posted
• No. of WebQuest tasks finished and their
  qualities
• Hall of Fame
• Governor and the Police (warrior)

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The Site

• http//www.learningvillages.com/big5/index.php
• A sample Village Teaching Package F2 Maths
  under Education

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References

• http//www.edrenplanners.com/present/intranet/intr
  a_def.shtml
• http//www2.vip.net/seniors/definit.htm
• http//www.info.gov.hk/emb/public/it_table.html
• CUHK http//www.sitc.cuhk.edu.hk/
• http//courseweb.bus.lsu.edu/summer98/marketing/44
  14-1/group4/project1/def.htm
• http//www.arsh.com/art-glass/discuss.htm
• http//coverage.cnet.com/Content/Features/Howto/Be
  yond/ss02.html
• http//www.icq.com/
• http//www.learningvillages.com