NDLI: A New Two-Step Approach for Hands-On Teaching of Gene Technology: Effects on Students’ Activities During Experimentation in an Outreach Gene Technology Lab

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A New Two-Step Approach for Hands-On Teaching of Gene Technology: Effects on Students’ Activities During Experimentation in an Outreach Gene Technology Lab

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A New Two-Step Approach for Hands-On Teaching of Gene Technology: Effects on Students’ Activities During Experimentation in an Outreach Gene Technology Lab

Content Provider	Springer Nature Link
Author	Scharfenberg, Franz Josef Bogner, Franz X.
Copyright Year	2010
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 students’ activities yielded 10 categories (with well-fitting intra- and inter-observer scores with respect to 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-leadership style during experimentation are discussed, and conclusions for optimizing science teaching are drawn.
Starting Page	505
Ending Page	523
Page Count	19
File Format	PDF
ISSN	0157244X
Journal	Research in Science Education
Volume Number	41
Issue Number	4
e-ISSN	15731898
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-07-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biology education Hands-on experiments Outreach learning Science education Students’ roles Video analysis Cooperative learning Education (general) Science Education
Content Type	Text
Resource Type	Article
Subject	Education

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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