Try Using Vocabulary Lists to Help Your Students Conduct Better Searches

This is an excerpt from this week's Practical Ed Tech Newsletter. 

I'm in the process of updating my Search Strategies Students Need to Know online course. In the process of doing so I revisited a good article that I read a few years ago. That article is Characterizing the Influence of Domain Expertise on Web Search Behavior (link opens PDF) written by White, Dumais, and Teevan at Microsoft Research. They found that domain experts (domain referring to subject matter) conducted searches with more branchiness than non-experts.

Branchiness is defined as "the number of re-visits to previous pages in the session that were then followed by a forward motion to a previously unvisited page in the session."

Furthermore, the search sessions of domain experts consistently include more pages, more queries, and more overall time.

The findings of White, Dumais, and Teevan were consistent with findings of previous researchers on the topic including Ingrid Hsieh-Yee who is cited by White, Dumais, and Teevan. In 1993 Ingrid Hsieh-Yee found that students used more of their own search terms and less of external suggestions when researching topics for which they had prior expert knowledge.

What's this mean for teachers and students?
It would be unfair to expect students to be "experts" before conducting a web search. However, it might be worth having students develop a bit more prior knowledge of a topic before turning them loose to search the web for information about that topic. This might be done through reading materials provided by the teacher. It might also be done through mastering some vocabulary terms before embarking on a search. Increased prior knowledge could lead students to have more branchiness in their search habits.

Good Places to Find Constitution Day Lesson Plans

This coming Saturday is Constitution Day in the United States. If you find yourself in need of some lesson ideas for Constitution Day, C-SPAN, DocsTeach, and TED-Ed all offer either lesson plans or resources for building your own Constitution Day lesson plans.

Constitution Day Lesson Plans from C-SPAN Classroom
C-SPAN Classroom offers free lesson plans and Bell Ringers (discussion prompts) that were either designed for Constitution Day or can be used to meet the requirements of Constitution Day. All of the lesson plans incorporate short video clips addressing topics like enumerated and implied powers of Congress, interpretation of the Constitution, and checks and balances. You can find all of the lesson plans and additional resources in this Google Doc.

DocsTeach
DocsTeach is a National Archives website that all middle school and high school U.S. History teachers should have in their bookmarks. DocsTeach lets you build online activities based upon curated collections of primary source documents. DocsTeach also provides some pre-made activities that you can give to your students. DocsTeach has twenty pre-made Constitution Day activities that you can use today. An additional 166 documents and artifacts about the Constitution can be found through a quick search on DocsTeach.

TED-Ed Lessons

TED-Ed offers a bunch of lessons that are appropriate for Constitution Day. Those lessons are linked below.

The Making of the American Constitution.



Why is the US Constitution So Hard to Amend?



Why Wasn't the Bill of Rights Originally Included in the US Constitution?



How is Power Divided in the US Government?



A 3-Minute Guide to the Bill of Rights


How do Executive Orders Work?



What You Might Not Know About the Declaration of Independence