ERIC Number: EJ1033297
Record Type: Journal
Publication Date: 2014-Jul
Reference Count: N/A
Case Study: From Gummy Bears to Celery Stalks--Diffusion and Osmosis
Bonney, Kevin M.
Journal of College Science Teaching, v43 n6 p72-76 Jul 2014
This article describes an interrupted case study that intersperses information about diffusion and osmosis with content review and knowledge application questions, as well as a simple experiment that can be conducted without the use of a laboratory. The case study was developed for use in an introductory undergraduate biology course. The case would also be appropriate for use in a high school biology course and could be adapted for use with elementary or middle school students. To successfully complete this case study, students require prior knowledge and instruction about basic cell structure (including cell membrane composition and the presence of cell walls in plant cells but not animal cells), as well as access to information about how polarity affects membrane solubility.
Descriptors: Science Instruction, College Science, Case Studies, Scientific Concepts, Science Experiments, Secondary School Science, Undergraduate Study, Biology, Elementary School Science, Cytology, Plants (Botany), Molecular Structure, Food, Water
National Science Teachers Association. 1840 Wilson Boulevard, Arlington, VA 22201-3000. Tel: 800-722-6782; Fax: 703-243-3924; e-mail: email@example.com; Web site: http://www.nsta.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Elementary Education; Elementary Secondary Education; Middle Schools; High School Equivalency Programs; Secondary Education; Intermediate Grades; Junior High Schools; Higher Education; Postsecondary Education
Authoring Institution: N/A