This is a worksheet you can print and distribute to students to help them track their work on the Chapter Investigation. This site provides a complete set of international marine signal flags that are used by ships to communicate at sea. Each flag represents an individual letter or number.
Students can practice estimating fractions with other flags at the Web site.
You'll find out about the origins of signal mirrors and signal flag systems in this section of a documented and illustrated history about the history of the telegraph. You may download, print and make copies of the Investigation Organizer for use in your classroom, provided that you include the copyright notice shown on that page on all such copies. All Rights Reserved. Terms and Conditions of Use .