1. www.computerscienceuk.com How to Search Smart

2. www.computerscienceuk.com Starter How do search engines work? Write down your thoughts on a mini whiteboard 5 minutes

3. www.computerscienceuk.com Learning Objectives – Understand how search engines work – Understand some tools to “search smarter” – improve our search results by reducing search results and increasing their relevance. Lesson Outcomes – To explain how a search engine works. – To try out some advanced tools and see how they improve our search results. Literacy – Key Words IndexAnother name for a database of websites. Boolean Operators ‘AND’ ‘OR’ ‘NOT’ logic statements used to improve database searches. RelevanceHow close the information matches what you were looking for.

4. www.computerscienceuk.com Hands up if you can explain how a search engine works (i.e. what happens when you press the search button?)

5. www.computerscienceuk.com How the Google search engine works: http://www.youtube.com/watch?v=BN HR6IQJGZs

6. www.computerscienceuk.com Summary Google has a big database (index) containing millions of web addresses Each web address has a list of words and the number of times they appear in the site. So when you search the web, you are not actually searching the web. You are searching the google database. You are finding all the websites which contain the word(s) you have searched for. Class! YES!

7. www.computerscienceuk.com Hands up if you can explain how a search engine works (i.e. what happens when you press the search button?)

8. www.computerscienceuk.com Hands up if you can explain what Boolean Operators do?

9. www.computerscienceuk.com “One in a Billion” So we have just seen that there are billions of websites listed on Googles Database. Searching for the 1 website we need can be a difficult job. But there some advanced techniques that we can use….lets learn the tips!

10. www.computerscienceuk.com Advanced Search Tips Using Boolean Operators You can use Boolean operators… …(special words and symbols)… …to drill down and find the information you need. OR Quotes “ ” Minus Sign -

11. www.computerscienceuk.com What happens if we type CHEDDAR CHEESE into Google? ? Do we get what we want? Or do we get lots of unwanted websites as well?

12. www.computerscienceuk.com Normal Google Search Key Words: Cheddar Cheese Finds websites containing the words CHEDDAR and CHEESE but not necessarily together CheddarCheese Ignores websites that just have the word CHEDDAR Ignores websites that just have the word CHEESE

13. www.computerscienceuk.com Advanced Google Search Key Words: Cheddar OR Cheese Finds websites containing the words CHEDDAR and CHEESE but not necessarily together CheddarCheese Finds websites that just have the word CHEDDAR Finds websites that just have the word CHEESE

14. www.computerscienceuk.com Advanced Google Search Key Words: Cheddar -Cheese Ignores the sites that have the word CHEDDAR and CHEESE in them CheddarCheese Finds websites that just have the word CHEDDAR Ignores websites that just have the word CHEESE

15. www.computerscienceuk.com Advanced Google Search Key Words: “ Cheddar Cheese ” Will display the sites that have the phrase CHEDDAR CHEESE.

16. www.computerscienceuk.com Hands up if you can explain what Boolean Operators do?

17. www.computerscienceuk.com What is a GOOGLE WHACK! A GOOGLE WHACK… …A Googlewhack is a type of contest for finding a Google search query consisting of exactly two words without quotation marks, that returns exactly one hit.

18. www.computerscienceuk.com Complete the ‘Search Smart’ Worksheet Activity 2