1. CPT 499 Internet Skills for Educators Session Three Class Notes

2. Objectives Use the Search Button on the browser to access a search engine List several search engines Use multiple search engines in a query

3. Objectives Distinguish between Boolean operators: And, Or, Not Explain the process of searching the Web Describe the structure of the URL

4. Objectives Use the Find Command under the edit menu Use the Save Command under the edit menu Download an image or document from the Web

5. Search Engines Search Engines provide a more productive means of surfing the Web A search engine is a program that handle queries and provide a search form for the user to enter search criteria and locate Web resources. The search engine scans its database to see which documents are related to the key word(s) requested.

6. Search Engines The results page will show you how many hits (documents) it found on the database. The results page will list titles of the documents it finds, and a hyperlink to each document. Each engine uses a special program known as a spider to automatically search the Web on a periodic basis, looking for new documents to add to its database.

7. Search Engines The larger the database the greater the number of hits. The search engine you choose to use is up to your own personal preference.

8. Search Engines SOME COMMON WEB SERARCH ENGINES Site URL Yahoo http://www.yahoo.com Lycos http://www.lycos.com WebCrawler http://www.webcrawler.com AltaVista http://www.altavista.digital.com InfoSeek http://www.infoseek.com Metacrawler http://www.metacrawler.com Open Text http://www.opentext.comhttp://www.yahoo.comhttp://www.lycos.comhttp://www.webcrawler.comhttp://www.altavista.digital.comhttp://www.infoseek.comhttp://www.metacrawler.comhttp://www.opentext.com

9. Search Engines All queries are combinations of the logical (Boolean) operators. The Boolean operators are AND, OR, and NOT The way in which Boolean operators are specified depends on the search engine.

10. Search Engines If you are unsure check the online help provided with the search engine. Queries can be conducted in the form of a key word search.

11. Search Engines A program which systematically searches Web for documents on a specific topic Uses a key word(s) as a query

12. Search Engines Several search engines available Each search engine has its own database No search engine is best

13. Search Engines Uses Boolean (logical) operators Returns hits (matches) or documents once search has been submitted

14. Search Button Usually offers several prominent search engines for user’s choice More engines are usually available on the page either by scrolling on the page on through links to other engines

15. Search Button Can construct key word(s) search Can use category structure established by search engine

16. Search Button Browser logo and status bar keeps user informed of the progress of a search

17. Popular Search Engines

18. Search Rules Specify Boolean operators And -- includes all findings of all keyword(s) Or ---- looks for only one of the specified key word(s) Not -- allows user to exclude certain key word(s)

19. Search Techniques Use multiple search engines Use online help about search criteria used for the engine selected

20. Bookmark Command Bookmarks allow the user to return to a site without repeating a search Pull down Bookmark and click Add Bookmark to save URL

21. Find Command Find allows user to enter a specific character string within a long document Enables user to find information quicker

22. Save Command Save allows user to save and download (FTP) images and documents from the Web

23. Organization Names