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Which of the following is the most effective query for…

Which of the following is the most effective query for… find the top speed of earth's fastest animal? speed fastest animal what is earth’s fastest animal top speed earth’s fastest animal. 1. How to find information and evaluate it Carl Heine Illinois Mathematics and Science Academy.

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Which of the following is the most effective query for…

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  1. Which of the following is the most effective query for… find the top speed of earth's fastest animal? • speed fastest animal • what is earth’s fastest animal • top speed earth’s fastest animal 1

  2. How to find information and evaluate it Carl Heine Illinois Mathematics and Science Academy

  3. Translating a question into a query Verifying the credibility of information Choosing the best database Finding better keywords Recognizing information that’s relevant

  4. Google ‘digital natives’ and the top hit is: http://www.marcprensky.com/writing/Prensky%20-%20Digital%20Natives,%20Digital%20Immigrants%20-%20Part1.pdf “Digital Immigrant instructors, who speak an outdated language (that of the pre-digital age), are struggling to teach a population that speaks an entirely new language.” (Prensky, page 2)

  5. 1. Translating a question into a query • Starts with a question or a problem to solve. • Task: Translate a natural language question or statement into language that is understood by a search engine. • Search engines differ in how they process queries, but for the most part, what works on one big commercial search engine tends to work on the others. • Search engines perform a variety of literal matching functions with Boolean and special operators. 1

  6. 1. Translating a question into a query Which of the following is the most effective query for find the top speed of earth's fastest animal? • speed fastest animal • what is earth’s fastest animal • top speed earth’s fastest animal 1

  7. 1. Translating a question into a query Research Findings (IMSA second semester sophomores) • 36% recognized the optimal query from a list of three queries. Only 17% of seniors at a local high school identified the optimal query. • 31% grasped that search engines perform literal matching. • 17% regularly use natural language queries. • 12% misinterpreted the research question. (compared to 8% of college students and high school seniors on ICT Literacy Assessment – ETS, 2006) 1

  8. 2. Selecting a good database • This failure occurs before submitting the first query. • Task: Predict where expert information may be found. • No search engine performs a live Internet search when you submit a query. (Otherwise, how could it come back with a page that’s not found?) • That which is stored in one search engine’s database is invisible to another search engine (also called Enterprise Data) 1

  9. 2. Selecting a good database Research Findings (IMSA second semester sophomores) 1 • 90% search with Google more than half of the time. • 32% use Google exclusively.

  10. 3. Homing in: Relevant information • This failure occurs when a student looks at the results returned by a search engine. • Task: Match findings with expectations, evaluate relevance • Information on the Internet is not always found in predictable places. • Computers are made for speed, which encourages haste. • Hyperlinks and graphics can be distracting. 1

  11. 3. Homing in: Relevant information Research Findings (junior honors students) 1 • 36% were able to identify web pages that contain supporting research facts from a selection of three pages. • 25% -- same task, middle school students

  12. 3. Homing in: Finding better Keywords • This failure occurs throughout the search process: before the initial query is submitted and as students look at the results returned by a search engine. • Task: Find and use increasingly specific keywords • Frequently, effective keywords go unnoticed in snippets. • Our claim: Effective searching depends on keyword selection more than any other factor. 1

  13. 3. Homing in: Finding better Keywords Research Findings (high school) 1 • 14% of IMSA sophomores used alternate keywords when searching. • 7% of junior honors students chose effective alternate words to find information. • ICT Assessment: only 40% searched with multiple terms

  14. Evaluating credibility • This failure occurs after information has been located. • Task: Check the credibility of information, authorship • Typically, students forego this decision altogether and uncritically accept whatever information they find. • Depending on which database the information was taken from, information may be unedited, unendorsed and inaccurate. • Special operators (link:) makes external evaluation easier. 1

  15. Evaluating credibility • 33% of Illinois schools report having a curriculum method for teaching students to evaluate online resources • 0% of junior honors students were able to use special operators to evaluate the credibility of a web page. • ICT Assessment comparison – 49% of test-takers identified the one web site that met criteria for objectivity, authority and timeliness. 1 Pacific NW Tree Octopus

  16. Buffalo Challenge How many buffalo are there in North America today?

  17. Buffalo Challenge How much do I know about searching and this subject? Questions to ask Novice searcher: Subject Directory Well-versed and know some places to look: Browse Know how to turn a question into a query: Search Engine How many buffalo are there in North America today?

  18. Buffalo Challenge How much do I know about searching and this subject? How many important ideas are represented here? Novice searcher: Subject Directory Well-versed and know some places to look: Browse Know how to turn a question into a query: Search Engine How many buffalo are there in North America today

  19. Buffalo Challenge How many important ideas are represented here? How many will I include in a query? One important idea? There is probably more than one 2 – 3 important ideas: Include them both/all 4 or more: Search for only 3 if possible (“1 in 5 rule”) How many buffalo are there in North America today

  20. Buffalo Challenge How many will I include in a query? What keywords are good “as is?” One important idea? There is probably more than one 2 – 3 important ideas: Include them both/all 4 or more: Search for only 3 if possible (“1 in 5 rule”) Proper nouns: North America Numbers: (the answer will be a number) How many buffalo are there inNorth Americatoday

  21. Buffalo Challenge What keywords are good “as is?” What keywords may need to be replaced? Proper nouns: North America Numbers: (the answer will be a number) Multiple meanings: buffalo Frequently used in other contexts: many Howmany buffaloare there inNorth Americatoday

  22. Great Wall Challenge Who first claimed that China’s Great Wall can be identified from space? Keyword Challenge Game

  23. Great Wall Challenge Who first claimedthat China’s Great Wall can beidentified from space? Keyword Challenge Game

  24. Deep Web, Invisible Web • Information that is stored in a different database than the one you are searching now. 1 Google Archive.org Yahoo! LOC • Information that is “buried” deeper in the abstracts than results from another database.

  25. John Williams Challenge Classical guitarist John Williams has composed all the music for only one motion picture. What is the name of the movie?

  26. John Williams Challenge Questions to ask Who would know the answer and how do I locate that person or organization? Classical guitarist John Williams has composed all the music for only one motion picture. What is the name of the movie?

  27. John Williams Challenge Who would know the answer and how do I locate that person or organization? movie soundtrack database

  28. Viking Challenge What type of coins were highly treasured by Vikings?

  29. Viking Challenge *Ø* Wilson's Almanac free daily ezine | Vikings! | Folklore ... What type of coins were highly treasured by Vikings? Important Finds | Treasure Hunting

  30. Golf Cross Challenge What compelling evidence can you find to determine if this is a real sport or a hoax? www.golfcross.com

  31. Golf Cross Challenge Questions to ask How credible is the source of the information? Author Publisher Objectivity Links used www.golfcross.com

  32. Golf Cross Challenge How credible is the content of the information? How credible is the source of the information? Author Publisher Objectivity Links used Evidence Accuracy Date Links to page www.golfcross.com

  33. Susie Flynn Campaign Challenge What source and content information can you find that discloses the true intent of this campaign? www.electsusie.com

  34. Sorting Hat Test Challenge Who is collecting research data using this online test? www.personalitylab.org/tests/ccq_hogwarts.htm

  35. 21cif.imsa.edu 21cif.com internetsearchchallenge.blogspot.com keywords: information fluency 1

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