WASHINGTON—Most educators promote "hands-on" science learning—instead of traditional rote memorization—as the best way to teach and excite youngsters about science. Drawing on the world around them, children handle and manipulate the objects they study—plants, rocks, insects, water, magnetic fields. And students learn by using scientific instruments, measurement and observation devices like rulers, microscopes, telescopes, test tubes, cameras.
But how do children experience activities-based learning about nanotechnology—a world of atoms and molecules that's too small to see with the naked eye and that requires sophisticated electron or scanning probe microscopes?
Bethany Maynard, a 6th grader at a Fairfax County, Virginia elementary school, shows how young people can observe, test and investigate nanotechnology—sharpening their analytical skills and becoming active science learners—at home or in a classroom without any expensive equipment. All that's needed is some ketchup, mustard and a tie.
Bethany's curiosity was sparked by a new silk tie bought by her father at Brooks Brothers® that claims to be treated with Nano-Tex ™ fabric protection to repel liquids and stains. Examining the tie, she began to ask critical questions: What is nanotechnology? How does it protect clothing from stains? Does nanotechnology have other potential uses, particularly to help improve or safeguard the environment? Are there risks?
She experimented in her family kitchen, slathering the tie with ketchup, mustard and coffee to test its stain resistant properties. And she posed basic questions about nanotechnology to her father, Andrew Maynard, chief science advisor at the Wilson Center's Project on Emerging Nanotechnologies. She also interviewed one of the country's leading experts on "green" nanotechnology, Barbara Karn, who works at the U.S. Environmental Protection Agency and who currently is a visiting scientist at the Project. In addition, Bethany turned to the Internet to find more information about nanotechnology online.
Her Internet search included the Project on Emerging Nanotechnologies' online inventory of almost 300 manufacturer-identified nanotechnology consumer products currently being sold in department and hardware stores, pharmacies, and sporting goods catalogues. The inventory includes the Brooks Brothers® tie she tested in her kitchen "laboratory". Consumer Products Inventory
Using her family's video camera and recruiting her younger brother, Alex, as cameraman, Bethany produced a short video (~8 minute) that reports her main observations, findings and conclusions. The 20mb video is available online HERE.
Quicktime 7 - available free here - is required to view the video.
"Young people's ability to compete successfully in a 21st century global economy and to secure exciting, self-fulfilling careers is highly dependent on their scientific and mathematical literacy—particularly their understanding of an emerging area like nanotechnology," according to Julia A. Moore, deputy director of the Project on Emerging Nanotechnologies. "If nanotechnology results in the new industrial revolution that many foresee, then it is vital for children like Bethany and others to have the opportunity—in schools, science museums, or supervised at home—to discover, experiment, ask questions and draw conclusions about nanotechnology using a hands-on learning approach."