Using Digital Microscopy

Autor/inn/en	Travaille, Madelaine; Adams, Sandra D.
Titel	Using Digital Microscopy
Quelle	In: Science Teacher, 73 (2006) 4, S.50-54 (5 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0036-8555
Schlagwörter	Photography; Laboratory Procedures; Laboratory Equipment; Investigations; Developmental Stages; Physiology; Anatomy; Biology; High School Students; Secondary School Science; Microbiology; Inquiry; Laboratory Experiments; Science Experiments; Science Process Skills; Teaching Methods; Science Instruction + Suchen Sie Ihr Suchwort? Fotografie; Laboruntersuchung; Laborausstattung; Untersuchung; Physiologie; Anatomie; Biologie; High school; High schools; Student; Students; Oberschule; Schüler; Schülerin; Studentin; Mikrobiologie; Laboratory work; Laborarbeit; Teaching method; Lehrmethode; Unterrichtsmethode; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	Studying "Caenorhabditis elegans" ("C. elegans") live cultures provides excellent opportunities for authentic inquiry in a high school anatomy and physiology or other biology lab course. Using a digital dissection microscope, a student can photograph the organism during various stages of development and study and analyze the images. In this article, the authors describe a successful activity using a digital dissection microscope to study live cultures of "C. elegans." They adapted several laboratory protocols that address the National Science Education Standards (NRC 1996); encourage the use of inquiry; and intertwine genetics, modern molecular biology, anatomy, and physiology in one unit. Students design their own experiments and participate in inquiry-based lessons. Incorporating digital microscopes in the anatomy and physiology laboratory has increased students' ability to compare and contrast stages of development and study the behavior of "C. elegans" in greater depth. "C. elegans" is ideal to use in high school laboratories because of the organism's short life cycles, small size, and inexpensive maintenance materials. In addition, students acquired significant laboratory skills when conducting these activities. Students learned how to use microscopes, to distinguish the sexes, to characterize wild-type and mutant worms, to observe behaviors in different environments such as those in which there are different chemical substances, and to maintain cultures of C. elegans. (Contains 3 figures.) (ERIC).
Anmerkungen	National Science Teachers Association. 1840 Wilson Boulevard, Arlington, VA 22201-3000. Tel: 800-722-6782; Fax: 703-243-3924; e-mail: membership@nsta.org; Web site: http://www.nsta.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10