Using Boolean Operators and other Internet Search Tools

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# Using Boolean Operators and other Internet Search Tools - PowerPoint PPT Presentation

Using Boolean Operators and other Internet Search Tools. AND, OR, NOT, Parenthesis, Quotation Marks, Plus and Minus Signs. Let’s Get Started. Searching the internet can be a daunting task. You could spend hours on an unfocused quest.

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Presentation Transcript

### Using Boolean Operatorsand other Internet Search Tools

AND, OR, NOT, Parenthesis, Quotation Marks, Plus and Minus Signs

Let’s Get Started
• Searching the internet can be a daunting task.
• You could spend hours on an unfocused quest.
• The internet can be organized into sensible information by using search tools.
-Boolean Operator-AND
• If you enter AND between two words then your search will only yield documents that contain both words, narrowing your search.
• If you enter rage and traffic then your search will yield only documents with both words.
-Boolean Operator-OR
• If you enter OR between two words then your search will look for either word (you don’t care which word), broadening your search.
• If you type in rage OR anger in your search engine then your search will yield documents that contain the word rage or the word anger.
-Boolean Operator-NOT
• Not tells the search engine to disregard those documents that contain a word.
• This is a powerful command and should be used sparingly.
Why not NOT?
• If you search goldfish and guppy and get lots of information about swordtails, you might be tempted to try NOT swordtails.
• But what if the best authority on goldfish is an authority on swordtails, too? What if her name is Ira Swordtail? You could miss lots of information.
-Boolean Operator-Parenthesis ( )
• Search engines do not read left to right.
• Most interpret the AND first, then follow with the OR.
• You can tell the search engine to interpret the OR first by typing (Rage OR Anger) AND traffic.
• Don’t use ( ) when you’re only using AND.
-Boolean Operator-Quotation Marks