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Very good quality; in queue to be peer reviewed
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Explores the concept of homeostasis via manipulation of heart rate, arterial pressure, blood flow, and stroke volume. Students can examine realistic case studies to see how these variables interact to maintain homeostasis.
Sorry - forgot to put the score - this should be at least a 4!
13 years ago
Nancy J. Pelaez
I used this lab simulation in a class session for a non-majors Human Physiology class that was held in a computer studio classroom. The simulation is very effective and engages students with the VARIABLES that play a role in determining hemodynamics. The problems presented are interesting and relevant to the students. Conceptually, this activity incorporates deep and inter-related concepts that range from pressure/volume/flow relationships to responses due to sympathetic input. PROBLEMS: 1) It was necessary for me to steer the students away from activities that involved sympathetic input until they mastered pressure/volume/flows concepts. Otherwise, too many variables were confusing to students. I should have returned and tried the activity once again AFTER we had then focused on sympathetic responses (but we had only access to a one week demo - so I have not yet done this!) 2) While, as a physiologist, I found the data tracings to be accurate and very realistic, my students who had no experience in the lab needed EXPLICIT instructions on the graph tracings - defined axes - and I am NOT confident that all my students can extract information by reading the graphs. 3) I was suprised that this activity did NOT result in a classroom full of students having mastered cardiovascular hemodynamics concepts. Exam results were disappointing. I will look for ways to encourage individual accountability so that the students will LEARN the concepts from these activities. I believe that one solution might be UCLA's Calibrated Peer Review (CPR) at http://molsci.ucla.edu/cpr/ so please contact me if you want to help create a writing assignment around this lab.
Very polished presentation - easy to use, even by adult students with limited computer expertise.