PBS
Pbs Teachers: Changing Your Mind: Understanding Braille
Explore the communications system based upon a pattern of raised dots called Braille, and design a method of inquiry that uses the scientific method to compare the effectiveness of reading dot cells against reading raised alphabet...
PBS
Pbs Teachers: The Storm
Explore the impact of failures of communications systems on victims in the Hurricane Katrina disaster on the gulf coast in 2005. Evaluate how U.S. governments help citizens in times of crisis and how this storm impacted their procedures.