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Meghan miller instruction module 1

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  • 1. Meghan Miller LIS7880
  • 2. Boolean Operators: About, Use, and Functions
  • 3. Want to find specific information? Do you know how to narrow search results? Do you know how to broaden search results? The Boolean Operators Instruction Module will allow students to effectively narrow or broaden search results using Boolean operators.
  • 4. • After completing the lecture and looking at examples the students will: • Understand the use of NOT, OR, AND Boolean operators in database searching. • Distinguish the difference between AND, OR, and NOT Boolean operators. • Identify the use of Boolean operators in database searching. • Understand the use of combining Boolean operators in database searching. • Navigate through simple searches using Boolean operators in the ERIC database. • Upon completion of the assessment • Correctly answer questions on Boolean operators within 90-100% accuracy.
  • 5. • Boolean Operators are…. • Words that used to narrow or broaden text searches • They define relationships between words and groups of words • Allows word and phrase combination to retrieve documents (records) from databases • Boolean Operators can be used in… • Indexes • Databases • Search engines • Not all search engines support the use of Boolean Operators
  • 6. • There are three logical operators • AND • OR • NOT Which operators do you think narrow search results? Which operators do you think broaden search results?
  • 7. • Used to narrow a search • Used when searching for materials that contain more than one idea • When using AND both terms must be included in the record Library Information
  • 8. • Used to broaden a search • Used when searching for materials that contain either ideas • When using OR either term can be included in the record Library Information
  • 9. • Used to narrow a search • Used when searching for materials that contain one idea and excluding another • When using NOT only the primary term will be included in the record Library Instructio n
  • 10. Using combinations can create more specific results. • Library NOT Information NOT Education • Records will include library but exclude information and education • Library OR Information NOT Education • Records will include library or information but exclude education • Library AND Information OR Education • Records will include library and may include either information or education Be careful not use too many Boolean operators. Becoming too specific could result in no results
  • 11. • Please follow the link to complete a few questions on Boolean operators. http://www.proprofs.com/quiz- school/story.php?title=boolean-operators_1 • When you are finished please return to the presentation for an example of Boolean operators used in a database.
  • 12. Putting Boolean Operators to Work
  • 13. • Using the Education Resources Information Center (ERIC) database we will search the terms Instructional and Design • To view ERIC as a whole please visit: http://www.eric.ed.gov.proxy.lib.wayne.edu/ Here is the term search section in ERIC Search Term(s) is where you will enter your search terms and Boolean Operators You can Search in specific sections (Author, Title) or in all fields
  • 14. • Using Instructional and Design • ERIC produces the following results Instructional and Design both show up in the title, description, and abstract Searching Instructional and Design resulted in 28,486 results.
  • 15. • Take the time to explore the use of Boolean operators: AND, OR, NOT • Find a database, search terms of your choice, and share your results.