NotesFAQContact Us
Collection
Advanced
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1040267
Record Type: Journal
Publication Date: 2014-Sep
Pages: 6
Abstractor: As Provided
Reference Count: 13
ISBN: N/A
ISSN: ISSN-0047-231X
A Case Study for Teaching Quantitative Biochemical Buffer Problems Using Group Work and "Khan Style" Videos
Barreto, Jose; Reilly, John; Brown, David; Frost. Laura; Coticone, Sulekha Rao; Dubetz, Terry Ann; Beharry, Zanna; Davis-McGibony, C. Michele; Ramoutar, Ria; Rudd, Gillian
Journal of College Science Teaching, v44 n1 p34-39 Sep 2014
New technological developments have minimized training, hardware expense, and distribution problems for the production and use of instructional videos, and any science instructor can now make instructional videos for their classes. We created short "Khan style" videos for the topic of buffers in biochemistry and assigned them as homework, followed by group problem-solving sessions in class. We tested the hypothesis that "inverting the classroom" (a popular terminology for the new format) could replace traditional live lectures, which are typically followed by assigning homework problems (traditionally, mostly solved by students working alone). Using the inverted classroom method, we found that most of our students achieved mastery in solving buffer problems on an exam, without any live lecture (the class averages were ~80%). Our survey data showed that both students and faculty reviewers considered the new format to be an effective teaching tool. To validate our results, we included six survey questions concerning rigor and fairness; positive data were obtained in this regard, with a mean of ~4, on a 5-point scale. We included three separate classes in our study with grade data from 67 students and survey data from 42 students.
National Science Teachers Association. 1840 Wilson Boulevard, Arlington, VA 22201-3000. Tel: 800-722-6782; Fax: 703-243-3924; e-mail: membership@nsta.org; Web site: http://www.nsta.org
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A