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Learning in a gene technology laboratory with educational focus: Results of a teaching unit with authentic experiments

Title data

Scharfenberg, Franz-Josef ; Bogner, Franz X. ; Klautke, Siegfried:
Learning in a gene technology laboratory with educational focus: Results of a teaching unit with authentic experiments.
In: Biochemistry and Molecular Biology Education. Vol. 35 (2007) Issue 1 . - pp. 28-39.
ISSN 1539-3429
DOI: https://doi.org/10.1002/bmb.1

Abstract in another language

In an effort to overcome deficiencies in teaching molecular biology at school, a workshop in an out-of-school lab including only authentic experiments was developed. Evaluation of 337 A-level 12th graders followed a quasi-experimental design, with one hands-on, two non- experimental control groups (at school / in the lab), and one group with no intervention. Their cognitive achievement was monitored by pre-, post- and retention tests and analyzed for inter-group differences. Test items were differentiated into the œupdated prior knowledge� and the œproject-oriented� set relating to new knowledge. All intervention groups increased knowledge either as a whole or in relation to the project, while updating of prior knowledge was observed only in the lab, independently of experimenting. The hands- on group provided a higher learning success as regards knowledge acquisition as a whole, while the non-experimental lab group was more successful in updating prior knowledge, both groups in comparison with the school group. Nevertheless, the hands-on group™s achievement scores dropped more than those of the school group. Learning motivation may have been higher in the lab, furthered by the involvement in experiments, as shown by correlation analysis. However, the experimental situation may comply with the cognitive load theory by a substantially higher contribution of extraneous load.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER40615
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Didactics of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Didactics of Biology > Chair Didactics of Biology - Univ.-Prof. Dr. Franz Xaver Bogner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 15 May 2015 14:47
Last Modified: 15 May 2015 14:47
URI: https://eref.uni-bayreuth.de/id/eprint/13759