Rearing Media as a Variable in Fruit Fly Fecundity: An Activity to Introduce Scientific Methods of Inquiry to Biology StudentsReportar como inadecuado




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Bioscene: Journal of College Biology Teaching, v32 n3 p24-29 Aug 2006

A major challenge in teaching the process of science to students is designing and implementing laboratory activities that emulate what is actually done in a research laboratory. To facilitate this effort, science educators have been encouraged to design exercises that span multiple laboratory periods, encourage independent thinking, promote hypothesis-driven experimentation, and data collection and analysis. We have designed an inquiry-based, semester-long laboratory activity amenable to majors or nonmajors and to introductory or advanced biology students. This activity utilizes Drosophila melanogaster, the fruit fly, as a model organism that allows students to investigate how different rearing media additives affect female fecundity measured as numbers of eggs laid. To explore the feasibility of our activity aimed in helping students learn the processes of science, we assigned the activity independently to three different student populations. These included 1) students in an undergraduate biology laboratory; 2) an independent undergraduate research project; 3) a Distance Education Biology Master's graduate student summer research project. The goal of this laboratory activity is to allow students the opportunity to design a controlled experiment, formulate testable hypotheses, identify variables, make quantitative and qualitative observations, and analyze data using a simple computer spreadsheet program. (Contains 3 figures.)

Descriptors: Majors (Students), Graduate Students, Research Projects, Distance Education, Scientific Research, Biology, Educational Technology, Science Instruction, Inquiry, Introductory Courses, Advanced Students, Entomology, Science Experiments, Science Process Skills, Spreadsheets, Statistical Analysis, Qualitative Research, Undergraduate Students

Association of College and Biology Educators. Web site: http://acube.org





Autor: Wollard, Laura; Klein, Benjamin; Carlson, Darby J.; Carlson, Kimberly A.

Fuente: https://eric.ed.gov/?q=a&ft=on&ff1=dtySince_1992&pg=3522&id=EJ854246







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