by: Tami O’Connor
As an elementary and middle school teacher and Girl Scout leader, I had a bag of tricks that I dug into frequently… One of my favorites was the gyrocopter. I always kept a template in my files and when teaching about air, friction, forces symmetry or flight, out it came. It was simple enough for kindergarten students to build, yet complex enough to hold the attention of eighth graders as we discussed principles of drag, the characteristics of flight or even just isolating variables in an experiment.
Nearly 400 years before the invention of the helicopter, Leonardo da Vinci sketched out a machine designed to compress air in order to obtain flight. When Igor Sikorsky designed the first successful helicopter in the late 1930’s, da Vinci’s spinning wing was his inspiration.
Today, you can easily build gyrocopters with your students to explore different designs and variables.
Posted by Tami O'Connor 
When the topic is germs, your teaching opportunities can expand in many directions—just like the droplet spread from a sneeze!
Educational Innovations’ 
Germs are everywhere. We could say they’re nothing to sneeze at, but that would be a pretty lame joke.