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ERIC Number: EJ939207
Record Type: Journal
Publication Date: 2007
Pages: 7
Abstractor: As Provided
Reference Count: 1
ISSN: ISSN-0021-9266
Snail Shells in a Practical Application of Statistical Procedures
Banks, Stephen W.; Shepherd, Deborah K.; Williams-Hart, Tara; Gossett, Dalton R.; Crnkovic, Amanda C.
Journal of Biological Education, v41 n3 p131-137 2007
This paper is based upon a laboratory exercise designed for biology students in secondary schools or those taking introductory biology laboratory courses in colleges and universities. This exercise requires a set of calipers, a calculator and populations of snail shells collected either from the wild or obtained from a biological supply house. The exercise illustrates an inexpensive means by which students can conduct their own measurements and analysis of biological specimens. Snail shells can be measured for their height, width, aperture dimension, and weight. This provides data which can be used to illustrate and apply the concepts of probability, normal distribution, standard deviation, homogeneity of variance, and Student's t-test in a biological context. The students do not use computers in this exercise so that, through the manual completion of worksheets with paper and pencil, they can more effectively learn the application of statistical methodology. (Contains 6 figures, 2 tables, and 1 footnote.)
Routledge. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Elementary Secondary Education; Higher Education; Postsecondary Education; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A