Tech

April 30, 2014

Seeing sound: Teachers learn science of sound

Leader Richard Chapleau outlines the goals of the “Seeing Sound” teachers workshop ñ building a waveform monitor and a flyable model glider from common everyday materials.

Sound is something most of us with good hearing take for granted. Rarely do we consider the physics involved.† Sound comes from many sources ñ voices, machinery, musical instruments, computers, vehicles ñ but all are transmitted and received the same way: through vibration.

A group of 22 elementary, middle school and high school teachers not only learned about the science of sound, but also how to communicate that science to their students in a practical way during a recent “Seeing Sound” workshop at the NASA Armstrong Educator Resource Center at the AERO Institute in Palmdale, Calif.

Sponsored by the Office of Education at NASA’s Armstrong Flight Research Center, the workshop was designed to show the attendees how to use lesson plans and activities developed by NASA’s Aeronautics Research Mission Directorate to communicate concepts that support the agency’s emphasis on Science, Technology, Engineering and Mathematics curricula ñ the STEM disciplines.

Educator Professional Development Specialist Richard Chapleau, a former science teacher at Lancaster High School, provided an overview of the physics of sound and then led the participants through an student activity that demonstrated how they could “see” sound waves to gain better understanding of how different sound frequencies create different sounds.

Jeanette Chapleau, a teacher at Granada Hills High School and Richard Chapleau’s daughter, sees the sound of her voice as she sings into the open end of the waveform monitor while watching the resulting waveform her voice created.

“What I’m trying to give these teachers are ways to bring real world information into their classrooms,” said Chapleau. “They’ve spent a lot of time with textbooks, and that’s how they were all trained ñ use the textbook, use the textbook, use the textbook.
“The new model now is to let them do more experiential learning,” he explained. “Where do they go to get real-world applications? Well, NASA has a pretty good track record in real-world applications.”

Chapleau, who was named California’s Teacher of the Year in 1995, outlined the Seeing Sound activity that involved the use of simple materials readily available at local variety or home-improvement stores. The activity involved building a simple waveform monitor that bounced a laser pointer beam off of a mirror glued to a balloon diaphragm stretched over the end of a tube.

Vibrations from sounds going through the open end of the tube resulted in the laser pointer creating a visible waveform projected on a nearby wall or screen.

NASA Armstrong engineers Patrick Chan, Allen Parker and Francisco Pena also participated in the workshop, demonstrating how a NASA-developed high-tech fiber optic sensing system used similar physics as the simple waveform generators built by the teachers under Chapleau’s direction.

A second activity had the teachers building a small glider from a plastic foam picnic plate and then flying it to show basic principals of aeronautics.

“It was incredible to watch all of those teachers learning how to use NASA content in their classroom,” commented NASA Armstrong’s acting director of education Karla Shy, noting that the workshop was the first held in two years by NASA Armstrong’s Educator Resource Center at the AERO Institute.

“My job is to go out there and find what the NASA genius engineers and scientists are doing, and pull the pieces out that will match the national standards,” added Chapleau. “By doing it in a real-world fun activity, they’re going to translate that fun to their kids, and we’re going to get more kids to pursue careers in STEM.”




All of this week's top headlines to your email every Friday.


 
 

 

Headlines March 30, 2015

News: Pentagon chief mulls easing military enlistment standards - Defense Secretary Ash Carter is considering easing some military enlistment standards as part of a broader set of initiatives to better attract and keep quality service members and civilians across the Defense Department.   Business: Lockheed pays $2 million to settle government overbilling charges - Lockheed Martin Corpor...
 
 

News Briefs March 30, 2015

Landing mishap for military chopper; two aboard unhurt Two Navy officers were unhurt after their helicopter rolled on its side while landing in the Florida Panhandle. The mishap happened the night of March 27 at a Navy landing site in Pensacola, Fla. The Pensacola News Journal reports a pilot instructor and a student were able...
 
 
Air Force photograph by TSgt. Matt Hecht

Laser-based aircraft countermeasure provides ‘unlimited rounds’ against MANPADS

Air Force photograph by TSgt. Matt Hecht A U.S. Army AH-64 Apache attack helicopter prepares to depart Bagram Air Field, Afghanistan, on Jan 7, 2012. The Apache conducts distributed operations, precision strikes against relocat...
 

 

Navy, Air Force advocate for modernizing combat aviation

Top Navy and Air Force officials today told the House Armed Services subcommittee on tactical air and land forces the president’s budget request for fiscal year 2016 will support modernizing combat aviation programs. Cavy Vice Adm. Paul A. Grosklags, principal military deputy to the assistant secretary of the Navy for research, development and acquisitions; Air...
 
 

Raytheon wins $46 million contract for South Korean Global Hawk ground stations

Raytheon has been awarded a contract valued at up to $45.7 million by Northrop Grumman Aerospace Systems for ground segments in support of four Global Hawk unmanned aircraft systems recently purchased by the Republic of Korea. Under this contract, Raytheon will deliver one building-based and one mobile ground segment to locations in South Korea. Work...
 
 
Air Force photograph by SrA. Victor J. Caputo

McConnell community marks B-29 rollout

Air Force photograph by SrA. Victor J. Caputo A B-29 Superfortress aircraft, named Doc after its nose art, sit on the flightline March 23, 2015, in Wichita, Kan. Doc will be one of two Superfortresses in the world capable of fl...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>