Mat 101 Fall 07 Page

 

Class Comments

Simple Statements

• violence
•  "television violence" (literal string)

Compound Statements. Discuss implicit and, precedence of operators, no two operators together

• television and violence (Build truth table)
• (television and violence) or (television and media)
• (television or media) and violence  (Build truth table)
• (television or media) and violence and not newscasts

 

 

Information Literacy Session

 

Library Research: Databases and their content

Databases A-Z: examples of databases by subject vs multidisciplinary

 

Simple searches 

Boolean Operators AND, OR, NOT

Parentheses and Order of Operation- Help Screens

 

 

 Academic Search Premier

 

Simple search: Videogames

video games

OR: videogames or video games

AND: videogames and violence

COMBINING OPERATORS: videogames and violence or video games and violence

NESTING: (videogames or video games) and violence (# of results should be identical)

marijuana and legalization

marijuana and legalization not medical

 

Obama and Iraq

Clinton and Iraq

Elicit How to  combine into one search string: (Obama or Clinton) and Iraq

NOT: Eliminate Bill from possible results: (Obama or Clinton)and Iraq not Bill

 

Class exercise: 

credit cards

credit cards and debt

"credit card debt"

"credit card debt" and students

"credit card debt" not students not women

simplify that search

 

 

 

Homework Assignment

 

1. Using the Infotrac Basic Keyword Search
   1. Determine the number of references (hits) for:
      1. "solar cars"
      2. solar cars
   2. Find an article in part b does not contain the exact phrase solar powered cars. Email the article you find to glassr@ncc.edu
   3. If a = "solar cars" and s = solar, and c = cars write a boolean logic expression for #2a and #2b.
   4. If you were doing reseach on solar powered cars, which search (a or b) would you use.  Explain your answer.
   5. If e = electric and s = solar" determine the number of articles for:
      1. s \/  e /\ c
      2. ( s \/ e) /\ c
      3. Are the number of hits the the previous two the  same?  If not, explain why
      4. What are the number of hits for ( s /\ c) \/ (e /\ c)? Does the number match any of the previous parts?
      5. Build and hand in truth tables for the expressions in parts 1, 2 and 4.
2. Using the Academic Search Premier database, determine the number of hits for:
   1. baseball not (major or MLB)
   2. baseball not major and not MLB
   3. Are the number of hits (references the same)?  If so, explain why you think they are.
   4. Write a boolean expression for part 1 and part 2 above.
   5. Build and hand in truth tables for the expressions in parts 1, and 2.

 

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