Grace A Maldarelli|Erica M. Hartmann|Patrick J. Cummings|R. Don Horner|Kristina. M Obom|Richard Shingles|Rebecca Pearlman
Virtual Lab Demonstrations Improve Students’ Mastery of Basic Biology Laboratory Techniques
Johns Hopkins University
biology laboratory classes designed teach concepts techniques experiential learning students never performed technique must guided process often difficult standardize across multiple lab sections visual demonstration laboratory procedures key element teaching pedagogy main goals study create videos explaining demonstrating variety lab techniques would serve teaching tools undergraduate graduate lab courses assess impact videos student learning demonstrations individual laboratory procedures videotaped edited imovie narration videos edited audacity undergraduate students surveyed anonymously prior following screening assess impact videos student lab performance completion two participant perception indicator surveys total 203 171 students completed pre posttesting surveys respectively statistical analyses performed compare student perceptions knowledge confidence experience lab techniques viewing videos eleven demonstrations recorded chisquare analysis revealed significant increase number students reporting increased knowledge confidence experience lab techniques viewing videos incorporation instructional videos prelaboratory exercises potential standardize techniques promote successful experimental outcomes