Internet Links

Following are links to Internet resources that can be used to support instruction of the Math World feature for this chapter.

Surfing the Aether 7#150; A Radio History & Technology Timeline
This site reviews the development of radio from its beginnings in the late 19th century until today. The site is an illustrated timeline about radio history with hyperlinks to details about radio terminology and radio's inventors.
http://www.northwinds.net/bchris/

Ancient Civilizations and Their Number Systems
This wonderful site, created from 5th and 6th grade social studies projects, highlights the different ways human cultures have counted and used numbers in ancient times.
http://www.internet-at-work.com/hos_mcgrane/ancient_numbers/maths_menu.html