Students at the High School recently conducted bacterial science
experiments throughout the school as part of their Living Environment
class.
The ninth- and tenth-graders set about the school and collected samples
from the cafeteria, auditorium seats, bathroom sinks, door handles and
the library’s computers to test for traces of bacteria.
The class, taught by Alan Gandt, is a New York State Science Learning
Standards Storyline structure pilot that actively engages participants
in student-designed inquiry exercises.
“This exciting pilot marks one of the biggest shifts to the new
standards at the high school,” said Dr. Amy Meyer, the district’s
director of STEM, as scientific questions were posed by the individual
student groups.
One group of three students used cotton swabs to collect samples from a
computer keyboard. Once they put their sample in a petri dish that was
lined with the nutritionally rich medium of Luria broth used for the
growth of bacteria, they decided on their immediate next test: using
hand sanitizer and then touching the keyboard a second time for
comparison. Their preliminary inquiry didn’t stop there. Next, they
swabbed the mouse with the same two techniques to further compare
whether a keyboard or mouse at the same computer station would have more
bacteria. The samples were placed in an incubator, where the samples
will grow for several days for final results.