| cience
is really funny, observed a boy in Liane Carahasen's fourth-grade
class at Hillandale Elementary School in Durham. He giggled at
the "oops" moment when he accidentally tore the adding-machine
tape he was to scroll out for the experiments. With considerable
laughing and excited chatter, he and his fellow students were spreading
out a dozen or so tapes across the floor of the school cafeteria.
Their stated scientific objective: to predict how far rubber-band-powered
toy cars would travel along the tape with a given number of winds
of the rubber band.
Another boy decided that science could usefully be observed from
many perspectives, even upside down. He allowed the rubber-band-powered
car to zip backward between his feet, bending over for a topsy-turvy
view of its rapid departure.
Science can also surprise, as discovered by those who miswound the
rubber bands and were startled to see their cars whiz away in the
wrong direction.
And, perhaps most important, science can inspire big dreams. Just
ask the girl who announced confidently amid the creative cacophony
that she plans to go to Duke and study "trees and flowers and
those things up in the sky that are, y'know, like computers." (Later,
she decided they were satellites.)
While to an outsider it might seem that confusion reigned in that
cafeteria, to Carahasen the experiments were a successful exercise
in a hands-on approach to discovery known as "inquiry-based
learning." Her training in applying the technique enabled her
to roam the room--observing, asking questions, making suggestions,
and gently guiding the learning process. An alumna of Duke's Teachers
and Scientists Collaborating (TASC) training program, Carahasen,
like hundreds of other teachers across North Carolina, has learned
to use this inquiry-based approach to involve children, not only
in science, but also in the scientific process itself.
Led by Gary Ybarra, an associate professor of the practice of electrical
and computer engineering in the Pratt School of Engineering, and
Dave Smith, program director, TASC is a good example of the ways
in which Duke's faculty and staff members (and, in some cases, students)
are increasingly lending their time and expertise to meet the challenges
of K-12 science education. Their involvement stems from the recognition
that American schoolchildren are not receiving the kind of creative
teaching in science, technology, and mathematics that inspires students
to enter those fields, much less to excel in them. The result of
this educational neglect, they say, is a nation at intellectual and
economic risk.
The latest comparative international analysis by the Trends in International
Mathematics and Science Study ranks the U.S. nineteenth in mathematics
and eighteenth in science among nations. The U.S. ranks just below
Latvia in math and below Bulgaria in science--not a particularly
respectable niche for a country that considers itself a scientific
and technological superpower.
And the latest internal report card also gave the American school
system low marks in science and math teaching. As part of "Looking
Inside the Classroom: A Study of K-12 Mathematics and Science Education
in the United States," published in May 2003, experts observed
a representative sample of 364 science and math lessons in kindergarten
through twelfth grades across the country. They also interviewed
the teachers to understand the teaching philosophy behind those lessons
and the source materials used. The authors concluded that, "Overall,
59 percent of mathematics/science lessons are judged to be low in
quality, 27 percent medium in quality, and only 15 percent high in
quality." As a result, said the study, "the nation is very
far from the ideal of providing high-quality mathematics and science
education for all students."
For Ybarra and other Duke faculty members, a key to improving science
and math education is developing materials that engage students and
training teachers to use them. "Children have a natural affinity
for plants and animals, and they also have a natural curiosity," Ybarra
says. "If this curiosity is sparked, encouraged, and nurtured
in a nonthreatening way, the children develop confidence and independent
thinking. That's what we're trying to promote, and, at the same time,
increase their appreciation for an understanding of scientific principles." In
addition to rubber-band racecars, TASC provides kits that allow children
to experience the life cycle of butterflies, the mysteries of dirt,
the invisible magic of magnetism, and the physics of roller coasters.
Besides breaking through to students to pique their interest in science,
the program has "broken the logjam for the school districts
that have joined the partnership," says Smith, TASC's director. "North
Carolina has been trying to reform its science education for years," he
says, through a program called Infrastructure for Science Education. "And
most of the school systems are eager to go forward, but reach an
impasse when they have to come up with the money to buy the kits,
the time to train the teachers, and the mechanism to refurbish and
distribute those kits. We gave them the solutions to all three problems."
Another Duke faculty member offers another solution--one that got
its creative spark from the students themselves. Eight years ago,
as part of her sabbatical activities, Rochelle Schwartz-Bloom, professor
of pharmacology and cancer biology, tried out the idea of teaching
science through pharmacology in Myra Halpin's chemistry class at
the North Carolina School of Science and Mathematics in Durham. "I
told the students that, when I was in high school, we learned about
oxidation as the reaction that caused rust. Then I told them, 'Today,
I'm going to tell you about how methamphetamine kills neurons. And
it's all an oxidation reaction.' They were glued, just glued. And
when the bell rang, they didn't get up. They kept asking questions.
And Myra said to me, 'Shelly, I think this is going to work. I've
been doing this for twenty-seven years, and I have never had them
not get up when the bell rang.' "
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