(2008). How to interpret a map. Retrieved April 27, 2009, from Maryland Historical Society Web site:

        http://www.mdhs.org/teachers/intermap.html

(2008). How to interpret a document. Retrieved April 27, 2009, from Maryland Historical Society Web site:

        http://www.mdhs.org/teachers/documt.html

(2006). Historical treasure chests. Retrieved March 10, 2009, from Center for Innovation in Engineering and 

         Science Education Web site  http://www.k12science.org/curriculum/treasure/index.html

 (September 26, 2002). The learning page: using primary sources in the classroom. Retrieved March

        12, 2009, from Library of Congress Web site:   http://memory.loc.gov/learn/lessons/primary.html

 (August 23, 2006). What are primary sources?. Retrieved April 23, 2009, from University of

         Illinois Library Web site:  http://www.library.uiuc.edu/village/primarysource/mod1/pg2.htm

(2005). Historical treasure chests. Retrieved March 10, 2009, from Center for Innovation in Engineering and Science 

        Education Web site:  http://www.k12science.org/curriculum/treasure/student_activities_letter.html

Crane, C (2005). Wright numbers a north carolina number book . Chelsea, MI: Sleeping Bear Press.  

Johnson, C (Ed.). (1726). A general history of the pyrates.London: North Carolina Collection/UNC Libraries.

Rich, C., Project director Primary sources in the classroom. Retrieved April 28, 2009, from Teaching with Primary Sources at 

          Eastern Illinois University Web site:  http://www.eiu.edu/~eiutps/primary_sources/index.php

Urbanski, C (2006). Using the workshop approach in the high school english classroom, modeling effective writing, 

          reading and thinking strategies for student success. Thousand Oaks, California: Corwin.

Weatherford, C (2005). Freedom on the menu the greensboro sit-ins. New York, New York: Dial Books for Young Readers.