Transcript ch06
The Internet As A Tool For Inquiry Mark Grabe Uniqueness of the Web Allows Internet resources to be connected through links Allows online integration of media types - multimedia Copyright © Houghton Mifflin Company. All rights reserved. 6-2 Web Browser Used to connect to server Build web pages by interpreting HTML tags Instructions for assembling page components Integrate file types Text size and style Links to connections designed by page author Copyright © Houghton Mifflin Company. All rights reserved. 6-3 Web Browser Options expanded through plug-ins Quicktime audio/video RealPlayer audio/video Flash Streaming Video/audio delivery system Do not have to download entire file before begin presentation Some protection for media provider Copyright © Houghton Mifflin Company. All rights reserved. 6-4 Keeping Track of Useful Resources Browser can store a list of sites identified by user Bookmarks or Favorites List can be organized and annotated List can be searched List can be exported Copyright © Houghton Mifflin Company. All rights reserved. 6-5 Locating Useful Information Web offers more than 3 billion pages of information Two distinct approaches to locating information Browsing Searching Copyright © Houghton Mifflin Company. All rights reserved. 6-6 Browsing Follow hierarchical series of topics and subtopics to locate specific information Example - Yahoo! Copyright © Houghton Mifflin Company. All rights reserved. 6-7 Searching Send query to online database After hits are generated, differ in method by which hits are prioritized for presentation Example - Google Copyright © Houghton Mifflin Company. All rights reserved. 6-8 Browsing and Searching Commercial sites combine approaches Search within selected topic or subtopic Copyright © Houghton Mifflin Company. All rights reserved. 6-9 Search Engines Gather Different Information Data stored will influence what will surface as priority sites Example - Google How many other web pages link to a web page? Popularity assumed to imply greater value Copyright © Houghton Mifflin Company. All rights reserved. 6-10 Conducting A Search Current search sites are very easy to use Built to prioritize useful sites Ease of use my discourage exploration of advanced features Get by without learning to improve efficiency Copyright © Houghton Mifflin Company. All rights reserved. 6-11 Improving Search Efficiency Search for a phrase Boolean search Required combinations - AND Expand with options - OR Eliminate likely useless hits - NOT Newer search engines provide these features with “specialized” scripts e.g., hotbot.com Copyright © Houghton Mifflin Company. All rights reserved. 6-12 Categories of Web Resources Online Tutorials - designed for independent learning Instructional Resources - learning activity assuming teacher will implement and evaluate Primary Source - raw information resources of potential value Copyright © Houghton Mifflin Company. All rights reserved. 6-13 Using The Web For Primary Sources Example of information problem solving Locate information Interpret information Apply information Copyright © Houghton Mifflin Company. All rights reserved. 6-14 Big Six - A Model of Information Problem Solving Task definition Information-seeking Location and access Use information Synthesis Evaluation Copyright © Houghton Mifflin Company. All rights reserved. 6-15 Big Six - Task Definition Define the problem What needs to be done? Copyright © Houghton Mifflin Company. All rights reserved. 6-16 Big Six - Information Seeking Identify and prioritize resources What can I use to find what I need? Copyright © Houghton Mifflin Company. All rights reserved. 6-17 Big Six - Location and Access Locate source and relevant information Where can I find what I need? Copyright © Houghton Mifflin Company. All rights reserved. 6-18 Big Six - Use of Information Process information and extract relevant ideas What information can I use? Copyright © Houghton Mifflin Company. All rights reserved. 6-19 Big Six - Synthesis Organize and create a product How can I put my information together? Copyright © Houghton Mifflin Company. All rights reserved. 6-20 Big Six - Evaluation Will the product solve the problem? How will I know if the task has been completed? Copyright © Houghton Mifflin Company. All rights reserved. 6-21 Big Six and The Web Information seeking - Is the web an appropriate source? Location and Access - Are skills required to use search engine or directory present? Using information - Can learner extract information from appropriate sources? Copyright © Houghton Mifflin Company. All rights reserved. 6-22 Locating Quality Sources Use database of reviewed sites e.g., Ask Jeeves for Kids Use resources from educational portal - e.g., Blue Web’n Primary sources from reputable sources - e.g., National Weather Service Develop evaluation skills of learner Copyright © Houghton Mifflin Company. All rights reserved. 6-23 Evaluating Online Sources Author with appropriate credentials identified Bias/credibility of sponsoring organization? Differentiate personal opinion from databased presentation Site linked TO credible sites Site linked FROM credible sites Learner should use multiple sources Copyright © Houghton Mifflin Company. All rights reserved. 6-24 Scaffolding Web Explorations Support student effort in taking on challenging task Locate useful sources What should be learned from a source Copyright © Houghton Mifflin Company. All rights reserved. 6-25 WebQuests - Scaffolded Exploration Introduction - context Inquiry task Annotated links to useful sites Possibly a rubric to identify expectations Copyright © Houghton Mifflin Company. All rights reserved. 6-26