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Lesson 1 – Searching for information Objectives

Lesson 1 – Searching for information Objectives To understand how a search engine finds and catalogues sites To understand how a search engine finds and presents the results for a search term To be able to identify information about a website from its URL before actually visiting the site.

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Lesson 1 – Searching for information Objectives

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  1. Lesson 1 – Searching for information Objectives To understand how a search engine finds and catalogues sites To understand how a search engine finds and presents the results for a search term To be able to identify information about a website from its URL before actually visiting the site

  2. Lesson 1 – Searching for information Paired task How do you search for information on the internet? Keywords to remember Web Browser Search Engine Keywords URL

  3. Lesson 1 – Searching for information Web Browser A software application that enables you to view and interact with pages on the World Wide Web. Examples include Internet Explorer, Firefox, Chrome, Safari

  4. Lesson 1 – Searching for information Search Engine A database on the World Wide Web that enables you to use search terms or key words to find relevant pages or websites. Examples include Google, Alta Vista, Ask

  5. Lesson 1 – Searching for information URL • Stands for Uniform Resource Locator. • A URL is the unique web address for every page on the internet. • Examples: • www.teach-ict.com • www.amazon.com • www.facebook.com

  6. Lesson 1 – Searching for information Keywords Keywords are the terms in a webpage that would be used to match the search term a user enters into a search engine. Every webpage has a header and body containing tags. A search for ‘ICT’ will find every page on the web that has ‘ICT’ in the body text, the header and the tags.

  7. Lesson 1 – Searching for information On your ‘search engine results’ page, find and label the following items: The search term used The number of results found How long the search took to return your results The title of the one of the search results The URL (web address) for a search result The snippet of text which gives you a quick overview of the page Links to similar pages The search engine’s most recent stored version of the page Related searches that you could try More pages of your results Paid for advertisements

  8. Labelling your results…cont’d • The snippet of text which gives you a quick overview of the page • Links to similar pages • The search engine’s most recent stored version of the page • Related searches that you could try • More pages of your results • Paid for advertisements

  9. Lesson 1 – Searching for information

  10. Lesson 1 – Searching for information Understanding URLs • During this unit, you will be finding out about some of the following things: • What a URL means • How to search for information effectively on the Internet • How to make sure that the information you find is accurate • How to choose appropriate information to help you develop a presentation about a given topic.

  11. Lesson 1 – Searching for information The Internet • In March 2012, it was estimated that there were more than 644 million websites on the Internet and growing by 5% per month *. • Each of these websites contain a number of pages, some just a few, some perhaps hundreds. • And every single day, hundreds of thousands of new web pages are added to the Internet. • * Netcraft web server survey • .

  12. Lesson 1 – Searching for information Uniform Resource Locators For you to stand any chance of finding what you want on the Internet, there has to be an easy way to locate a particular web page. Luckily every single one of those billions of web pages has its own unique address – a bit like you have your own unique address at home. These web page addresses have a name – they are called ‘Uniform Resource Locators’ or URL for short.

  13. Lesson 1 – Searching for information Uniform Resource Locators (URLs) These are some examples of the URLs that you may have come across: http://www.google.com http://www.yahoo.co.uk http://www.amazon.com If you type these URLs into your browser, you will go to the exact site you wanted without having to use a search engine.

  14. Lesson 1 – Searching for information Uniform Resource Locators (URLs) A URL can often tell you a lot about a website before you even visit it. http://www.amazon.co.uk http means the protocol used Protocol is the way that two computers have agreed to ‘talk’ to each other. There are many different protocols available. For web pages, the method used is called ‘Hyper Text Transfer Protocol’ or HTTP.

  15. Lesson 1 – Searching for information Uniform Resource Locators (URLs) http://www.amazon.co.uk The www is short for World Wide Web. The www in the URL does not really do anything, it simply grew out of popular use. You will now find many websites which do not have ‘www’ in their URL.

  16. Lesson 1 – Searching for information Uniform Resource Locators (URLs) http://www.amazon.co.uk Amazon.co.uk is called the Domain name. It is part of the URL. However, it also tells you which organisation owns the site. In this case, a company called Amazon.

  17. Lesson 1 – Searching for information Uniform Resource Locators (URLs) All web sites are registered on a domain registrar. There is a different registrar for each ‘ending’: .govGovernment site .comInternational company .co.ukBritish based Company .orgOrganisation (often a charity) .acAcademic – often a university .schSchool .edEducation .netNetwork of websites

  18. Lesson 1 – Searching for information Uniform Resource Locators (URLs) http://www.amazon.co.uk Notice that this URL ends with ‘.uk’ This means that the website is registered in the United Kingdom. A website which ended with: .fr would mean it was registered in France .cn would be registered in China .nz would be registered in New Zealand

  19. Questions Using the internet find answers to the following questions: How does a business or organisation get their website to the top of the search list What is a spoof or phishing web-site? Name at least two organisations that hold registers of websites.

  20. Homework Tasks Complete task 4 questions for homework. Student should write a How to guide on how to search effectively on the internet. For the first part they can use the following titles: What is a search engine Examples of search engines What are key words What the results pages tell them

  21. Some Different links Quintura - A visual search engine. Oolone - A visual search engine. Tag Galaxy - A visual search engine for Flickr images using tags Sweet Search - A search engine for students. It searches only credible web sites approved by Internet research experts. DuckDuckGo- An alternative search engine to google. Carrot2 - A search engine that organizes your search results into topics

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