Today's guest post is by Maria Vita of Penn Manor High School in Millersville, PA. Take it away, Maria!
At Penn Manor High School, students in regular psychology and Advanced Placement Psychology conduct lab experiments using live rats. Yep, you read that correctly: LIVING RODENTS! After the 10-15 day project, students create Youtube videos demonstrating concepts learned. Some short, but effective videos from this year are
Agnes (2014),
Lacey (2014) and
Oz (2014).
During the project, students apply content standards from the APA/TOPSS standards in high school psychology, including:
• Ethical issues in research with human and non-human animals
• Principles of classical conditioning
• Principles of operant conditioning
Students ensure their three-week-old rat’s health by weighing it on an electronic baby scale. If rats lose more than 5-10% of their total weight, it can be an indicator of illness.
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Clicker |
Working in teams of two to three, the students name and “adopt” their rat: Each group is encouraged to fill their rat’s cage with enriching items like PVC tubes and empty tissue boxes. Our classroom can have anywhere from 12 to 26 rats (and cages) at a time!
In AP Psychology, students are encouraged to use a “clicker” to classically condition their rat. Ultimately, the “clicker” sound excites the rats because they associate it with food. Students apply Ivan Pavlov’s trace conditioning by clicking first (CS), pausing, and then presenting the rat with food (UCS). For an example, see these student-made videos on Youtube:
the rat Anastasia’s video (2011) or
Ellie the rat (2010).
Among their many feats, rats acquire bar-pressing behavior in an operant chamber. They also learn to navigate a maze and obstacle course. The student-made videos published on YouTube demonstrate the successes of the rats, but also students’ understanding of target vocabulary. In 2010, for example, students applied the term shaping by getting their rat
Nessy to push a marble down two ramps, then eight ramps, then seventeen ramps (see images or YouTube video @ 40 seconds).
Thanks for sharing this, Maria!
--posted by Steve