Investigation Organizer
This is a worksheet you can print and distribute to students to help them track their work on the Chapter Investigation.

Internet Links

Following are links to Internet resources for students to use while working on the Chapter Investigation.

International Marine Signal Flags
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. Try to spell your first name with signal flags! Students can practice estimating fractions with other flags at the Web site.
http://www.anbg.gov.au/flags/signal-flags.html

The Early History of Data Networks: Mirrors and Flags
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.
http://vvv.it.kth.se/docs/early_net/ch-2-1.2.html