Incompleteness in Searching • Incompleteness from Resource ...
Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.
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Transcript of Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.
![Page 1: Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.](https://reader036.fdocuments.us/reader036/viewer/2022083009/5697bfd91a28abf838caf5f9/html5/thumbnails/1.jpg)
Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation
Searching for information
![Page 2: Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.](https://reader036.fdocuments.us/reader036/viewer/2022083009/5697bfd91a28abf838caf5f9/html5/thumbnails/2.jpg)
Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation
Boolean connectors
• We get the widest results if we use OR, because this gives the most potential options.
• If we want to narrow a search down we can use AND or NOT.
• For example, a search on ‘animal testing NOT rats’ would search for sites containing the words ‘animal testing’, but ignore sites containing the word ‘rats’.
• AND / OR / NOT are all known technically as ‘Boolean connectors’.
![Page 3: Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.](https://reader036.fdocuments.us/reader036/viewer/2022083009/5697bfd91a28abf838caf5f9/html5/thumbnails/3.jpg)
Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation
Using Boolean connectors
• Most search engines (e.g. Google) automatically add the AND connector.
• When using OR or NOT you should always use capital letters.
• In Google, a NOT search uses a minus sign instead of the word NOT, for example:
animal testing–rats
![Page 4: Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation Searching for information.](https://reader036.fdocuments.us/reader036/viewer/2022083009/5697bfd91a28abf838caf5f9/html5/thumbnails/4.jpg)
Unit 8.3_Lesson 2_CD Resource 2a_Searching for information presentation
Other neat tricks!• To search on an exact phrase, place double quotation
marks around the phrase, like this:
“animal testing”• Some search engines assess whether a search term
seems to be wrongly spelled. They will offer you an alternative.
For example, if you type in animal tseting, Google will ask: Did you mean: animal testing
Click on the underlined link to find the correctly spelled words.