Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques

Biology laboratory classes are designed to teach concepts and techniques through experiential learning. Students who have never performed a technique must be guided through the process, which is often difficult to standardize across multiple lab sections. Visual demonstration of laboratory procedure...

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Autores principales:	Grace A. Maldarelli, Erica M. Hartmann, Patrick J. Cummings, Robert D. Horner, Kristina. M. Obom, Richard Shingles, Rebecca S. Pearlman
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2009
Materias:	Special aspects of education LC8-6691 Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/329c19796b98479aa7ba9aea543f6dfc
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spelling	oai:doaj.org-article:329c19796b98479aa7ba9aea543f6dfc2021-11-15T15:03:07ZVirtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques10.1128/jmbe.v10.991935-78851935-7877https://doaj.org/article/329c19796b98479aa7ba9aea543f6dfc2009-01-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/jmbe.v10.99https://doaj.org/toc/1935-7877https://doaj.org/toc/1935-7885Biology laboratory classes are designed to teach concepts and techniques through experiential learning. Students who have never performed a technique must be guided through the process, which is often difficult to standardize across multiple lab sections. Visual demonstration of laboratory procedures is a key element in teaching pedagogy. The main goals of the study were to create videos explaining and demonstrating a variety of lab techniques that would serve as teaching tools for undergraduate and graduate lab courses and to assess the impact of these videos on student learning. Demonstrations of individual laboratory procedures were videotaped and then edited with iMovie. Narration for the videos was edited with Audacity. Undergraduate students were surveyed anonymously prior to and following screening to assess the impact of the videos on student lab performance by completion of two Participant Perception Indicator surveys. A total of 203 and 171 students completed the pre- and posttesting surveys, respectively. Statistical analyses were performed to compare student perceptions of knowledge of, confidence in, and experience with the lab techniques before and after viewing the videos. Eleven demonstrations were recorded. Chi-square analysis revealed a significant increase in the number of students reporting increased knowledge of, confidence in, and experience with the lab techniques after viewing the videos. Incorporation of instructional videos as prelaboratory exercises has the potential to standardize techniques and to promote successful experimental outcomes.Grace A. MaldarelliErica M. HartmannPatrick J. CummingsRobert D. HornerKristina. M. ObomRichard ShinglesRebecca S. PearlmanAmerican Society for MicrobiologyarticleSpecial aspects of educationLC8-6691Biology (General)QH301-705.5ENJournal of Microbiology & Biology Education, Vol 10, Iss 1, Pp 51-57 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Special aspects of education LC8-6691 Biology (General) QH301-705.5
spellingShingle	Special aspects of education LC8-6691 Biology (General) QH301-705.5 Grace A. Maldarelli Erica M. Hartmann Patrick J. Cummings Robert D. Horner Kristina. M. Obom Richard Shingles Rebecca S. Pearlman Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
description	Biology laboratory classes are designed to teach concepts and techniques through experiential learning. Students who have never performed a technique must be guided through the process, which is often difficult to standardize across multiple lab sections. Visual demonstration of laboratory procedures is a key element in teaching pedagogy. The main goals of the study were to create videos explaining and demonstrating a variety of lab techniques that would serve as teaching tools for undergraduate and graduate lab courses and to assess the impact of these videos on student learning. Demonstrations of individual laboratory procedures were videotaped and then edited with iMovie. Narration for the videos was edited with Audacity. Undergraduate students were surveyed anonymously prior to and following screening to assess the impact of the videos on student lab performance by completion of two Participant Perception Indicator surveys. A total of 203 and 171 students completed the pre- and posttesting surveys, respectively. Statistical analyses were performed to compare student perceptions of knowledge of, confidence in, and experience with the lab techniques before and after viewing the videos. Eleven demonstrations were recorded. Chi-square analysis revealed a significant increase in the number of students reporting increased knowledge of, confidence in, and experience with the lab techniques after viewing the videos. Incorporation of instructional videos as prelaboratory exercises has the potential to standardize techniques and to promote successful experimental outcomes.
format	article
author	Grace A. Maldarelli Erica M. Hartmann Patrick J. Cummings Robert D. Horner Kristina. M. Obom Richard Shingles Rebecca S. Pearlman
author_facet	Grace A. Maldarelli Erica M. Hartmann Patrick J. Cummings Robert D. Horner Kristina. M. Obom Richard Shingles Rebecca S. Pearlman
author_sort	Grace A. Maldarelli
title	Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
title_short	Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
title_full	Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
title_fullStr	Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
title_full_unstemmed	Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
title_sort	virtual lab demonstrations improve students’ mastery of basic biology laboratory techniques
publisher	American Society for Microbiology
publishDate	2009
url	https://doaj.org/article/329c19796b98479aa7ba9aea543f6dfc
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Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques

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