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ERIC Number: EJ935060
Record Type: Journal
Publication Date: 2011
Pages: 5
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0009-2479
Project-Based Learning in Education through an Undergraduate Lab Exercise
Joye, Donald D.; Hoffman, Adam; Christie, Jacqueline; Brown, Mayo; Niemczyk, Jennifer
Chemical Engineering Education, v45 n1 p53-57 Win 2011
Three undergraduate students functioned as teaching assistants in unit ops lab for their senior project, which included developing a purchased size exclusion chromatography experiment, supervising the running of this experiment, and assisting the junior students with their calculations. They also read the reports, graded them, and commented on them. As part of their final report, the student "teachers" reflected on their impressions of being "educators." The lab exercise consisted of two parts: one where the students calibrated the peristaltic pump supplied with the unit, and one where the students injected a mixed sample into the chromatography column. The sample consisted of three compounds in solution--blue dextran, phenol red, and cytochrome c (colorless). From the results, peak heights, and elution times, a calibration curve for molecular weight was developed. The red and blue-colored species added a strong visual impact to the process.
Chemical Engineering Education, Chemical Engineering Division of ASEE. P.O. Box 142097, Gainesville, FL 32614. Tel: 352-392-0861; Fax: 352-392-0861; e-mail: cee@che.ufl.edu; Web site: http://cee.che.ufl.edu/index.html
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A