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Scharfenberg, Franz-Josef ; Bogner, Franz X.:
A new two-step approach for hands-on teaching of gene technology: Effects on students' activities during experimentation in an outreach gene technology lab.
In: Research in Science Education.
Bd. 41
(2011)
Heft 4
.
- S. 505-523.
ISSN 1573-1898
DOI: https://doi.org/10.1007/s11165-010-9177-2
Abstract
Emphasis on improving higher level biology education continues. A new two-step approach to the experimental phases within an outreach gene technology lab, derived from cognitive load theory, is presented. We compared our approach using a quasi-experimental design with the conventional one-step mode. The difference consisted of additional focused discussions combined with students writing down their ideas (step one) prior to starting any experimental procedure (step two). We monitored students' activities during the experimental phases by continuously videotaping 20 work groups within each approach (N=131). Subsequent classification of student' activities yielded 10 categories (with well-fitting intra- and inter-observer scores with respect to both objectivity and reliability). Based on the students' individual time budgets, we evaluated students' roles during experimentation from their prevalent activities (by independently using two cluster analysis methods). Independently of the approach, two common clusters emerged, which we labeled as "all-rounders" and as "passive students", and two clusters specific to each approach: "Observers" as well as "high-experimenters" were identified only within the one-step approach whereas under the two-step conditions "managers" and "scribes" were identified. Potential changes in group- leading style during experimentation are discussed, and conclusions for optimizing science teaching are drawn. http://springerlink.metapress.com/content/u16950h044213107/fulltext.pdf
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER84321 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Didaktik der Biologie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Ehemalige Professoren > Lehrstuhl Didaktik der Biologie - Univ.-Prof. Dr. Franz Xaver Bogner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Ehemalige Professoren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 12 Mai 2015 06:12 |
| Letzte Änderung: | 12 Mai 2015 06:12 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/13395 |