Macmillan/McGraw-Hill
 
Language Arts Return to Unit List
Grade 6
Unit 5: Problem Solving
Twentieth Century Technology
National Inventors Hall of Fame: Charles Franklin Kettering

Learn about inventions of the 20th century, including some you may never have thought about!
  • Read about Kettering's invention. How does it help you?

  • Click the F (forward) arrow at the bottom of the page two times.

  • Read about Kolff’s invention.

  • Continue to click the forward arrow and read about the inventions by Kwolek, Land, and Langmuir.

  • Think about the changes that each invention has made to people's everyday lives.