Assessing the Effectiveness of a Novel Microscopy Technique in Middle & High School Science Classrooms

Autor/inn/en	Raven, Sara; Cevik, Emel; Model, Michael
Titel	Assessing the Effectiveness of a Novel Microscopy Technique in Middle & High School Science Classrooms
Quelle	In: American Biology Teacher, 82 (2020) 7, S.463-469 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0002-7685
Schlagwörter	Science Instruction; Teaching Methods; Biology; Middle School Students; High School Students; Inquiry; Laboratory Equipment; Science Experiments; Light; Color; Biochemistry; Active Learning; Units of Study; Student Characteristics; Pretests Posttests; Student Attitudes; Word Frequency; Responses + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Teaching method; Lehrmethode; Unterrichtsmethode; Biologie; Middle school; Middle schools; Student; Students; Mittelschule; Mittelstufenschule; Schüler; Schülerin; High school; High schools; Oberschule; Studentin; Laborausstattung; Licht; Colour; Farbbezeichnung; Farbe; Biochemie; Aktives Lernen; Lerneinheit; Schülerverhalten; Word analysis; Frequency; Wortanalyse; Häufigkeit
Abstract	Although research and new technologies have introduced different ways of observing microorganisms, including scanning and electron microscopy, these methods are expensive and require equipment that is typically not found in a middle school classroom. The transmission-through-dye technique (TTD; Gregg et al., 2010), a new optical microscopy method that can be used with current basic light microscopes, relies on the fairly simple mechanism of filtered light passing through a dyed medium to produce an image that reflects cell thickness. With this technique, living microorganisms look bright red against a dark background, and movement can be seen easily among dead microorganisms and debris that show up black. Since the technique is low-cost and easy to implement, it addresses the needs of practitioners and is appropriate for a wide array of school contexts. We describe a three-week, hands-on, inquiry-based unit on TTD microscopy for middle and high school students. (As Provided).
Anmerkungen	University of California Press. 2000 Center Street Suite 303, Berkeley, CA 94704. Tel: 510-643-7154; Fax: 510-642-9917; e-mail: customerservice@ucpressjournals.com; Web site: http://www.ucpressjournals.com/journal.php?j=abt
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01