Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course
The characterization and identification of “unknowns” is an often-used laboratory activity in microbiology courses. As course enrollments become large, the logistics of providing unknown culture mixes, tubed and plated culture media, plus incubator and refrigerator space become quite daunting. A few...
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American Society for Microbiology
2010
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oai:doaj.org-article:fa21d5bea9434b538fcf3a71744822b22021-11-15T15:04:11ZUsing an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course10.1128/jmbe.v11i2.2211935-78851935-7877https://doaj.org/article/fa21d5bea9434b538fcf3a71744822b22010-01-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/jmbe.v11i2.221https://doaj.org/toc/1935-7877https://doaj.org/toc/1935-7885The characterization and identification of “unknowns” is an often-used laboratory activity in microbiology courses. As course enrollments become large, the logistics of providing unknown culture mixes, tubed and plated culture media, plus incubator and refrigerator space become quite daunting. A few years ago we discontinued the three-week Unknowns lab exercise when enrollment reached 240 or so students. In its place we have developed an hour long, midterm lab practical that incorporates smear preparation and the Gram stain, biochemical media, rapid tests, and a streak plate. This easy-to-grade laboratory assessment tool has taken the place of the more traditional station-to-station lab practical, and has worked well for the instructors responsible for administering practicals to 480 students in 13 lab sections over a two-day period.Ned T. BardenAmerican Society for MicrobiologyarticleSpecial aspects of educationLC8-6691Biology (General)QH301-705.5ENJournal of Microbiology & Biology Education, Vol 11, Iss 2, Pp 179-180 (2010) |
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Special aspects of education LC8-6691 Biology (General) QH301-705.5 |
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Special aspects of education LC8-6691 Biology (General) QH301-705.5 Ned T. Barden Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| description |
The characterization and identification of “unknowns” is an often-used laboratory activity in microbiology courses. As course enrollments become large, the logistics of providing unknown culture mixes, tubed and plated culture media, plus incubator and refrigerator space become quite daunting. A few years ago we discontinued the three-week Unknowns lab exercise when enrollment reached 240 or so students. In its place we have developed an hour long, midterm lab practical that incorporates smear preparation and the Gram stain, biochemical media, rapid tests, and a streak plate. This easy-to-grade laboratory assessment tool has taken the place of the more traditional station-to-station lab practical, and has worked well for the instructors responsible for administering practicals to 480 students in 13 lab sections over a two-day period. |
| format |
article |
| author |
Ned T. Barden |
| author_facet |
Ned T. Barden |
| author_sort |
Ned T. Barden |
| title |
Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| title_short |
Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| title_full |
Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| title_fullStr |
Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| title_full_unstemmed |
Using an “Unknown Characterization” Activity as the Midterm Lab Practical in a Large Enrollment, Multi-Lab Section Microbiology Course |
| title_sort |
using an “unknown characterization” activity as the midterm lab practical in a large enrollment, multi-lab section microbiology course |
| publisher |
American Society for Microbiology |
| publishDate |
2010 |
| url |
https://doaj.org/article/fa21d5bea9434b538fcf3a71744822b2 |
| work_keys_str_mv |
AT nedtbarden usinganunknowncharacterizationactivityasthemidtermlabpracticalinalargeenrollmentmultilabsectionmicrobiologycourse |
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