Abstract
Performance on a multiple-choice item in a public examination indicates that most students do not understand the principle of the bubble potometer and its limitations in measuring transpiration rate. Teaching strategies are suggested to overcome these problems by helping students to compare the bubble potometer with the weighing method, develop the concept of assumptions, and resolve cognitive conflicts. To rectify the alternative conception on the role of transpiration, an interactive activity is designed to guide students to expose their preconceptions, design investigations to test them and evaluate the validity of the original ideas.
Similar content being viewed by others
REFERENCES
Applin, D. (1994). Key Science: Biology, Stanley Thornes, Cheltenham.
Barker, M. (1999). Understanding transpiration—more than meets the eye. Journal of Biological Education 33: 17–20.
Board of Studies, New South Wales (1994). Biology Syllabus—Preliminary Course and Higher School Certificate Course, Board of Studies, NSW, North Sydney.
Clegg, C. J., and Mackean, D. G. (1994). Biology: Principles and Applications, John Murray, London.
HKEA (Hong Kong Examinations Authority) (1999). Hong Kong Certificate of Education Examination: Regulations and Syllabuses, HKEA, Hong Kong.
Hopkins, W. G. (1995). Introduction to Plant Physiology, Wiley, New York.
Jones, M., and Jones, G. (1997). Biology, Cambridge University Press, Cambridge.
Midland Examining Group (1998). GCSE Science: Biology Syllabus A, Midland Examining Group, Cambridge.
NISEAC (Northern Ireland schools Examinations and Assessment Council) (1995). GCSE Science: Biology Syllabus, NISEAC, Northern Ireland.
Pang, K. C. (1993). Certificate Biology: Mastering Basic Concepts, Oxford University Press, Hong Kong.
Roberts, M., King, T., and Reiss, M. (1996). Practical Biology for Advanced Level, Nelson, Walton-on-Thames.
Salisbury, F. B., and Ross, C. W. (1992). Plant Physiology, Wadsworth, Belmont.
Solomon, E. E., Berg, L. R., Martin, D. W., and Villee, C. (1996). Biology, Saunders College Publishing, Orlando.
ULEAC (University of London Examinations and Assessment Council) (1997). GCSE Science: Biology Syllabus, ULEAC, London.
White, R., and Gunstone, R. (1992). Probing Understanding, Palmer Press, London.
Yip, D. Y. (1993). Common misconceptions in biology. School Science Newsletter 37: 1–8.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yip, D.Y. Developing a Better Understanding of the Relationship Between Transpiration and Water Uptake in Plants. Journal of Science Education and Technology 12, 13–19 (2003). https://doi.org/10.1023/A:1022199325957
Issue Date:
DOI: https://doi.org/10.1023/A:1022199325957