In NASA CONNECT™, students learn about the human circadian clock and how itaffects peoples' daily lives. Students see how NASA scientists are studying the circadian timing system to improve astronaut's physical and mental tasks while working inspace. Conducting research to help astronauts sleep better in space also helps people on Earth with similar problems. The hands-on activity in this guide allows students to demonstrate how fractions, decimals, and percents are related and further develop their proportional reasoning skills.
  
    
Produced by NASA Langley Research Center's Office of Educational Programs.

 

Captioned for the Hearing Impaired