|Ethical issues are complex and involve an individual's sense of right and wrong, as well as empathy for the characters involved. Watching a controversial situation presents more context than just reading about it would, and tends to engage the students more than if it is presented as text.
Polling the students using i>Clickers promotes critical thinking about the situation while maintaining anonymity. Students themselves might role play by playing devil's advocate. The results of the class poll are projected and serve as a springboard for discussion.
The situations don't have clear-cut answers; no one is entirely right or wrong, and this shows up in the class polling results. After the discussion, students could be polled again to see if the percentages have changed, showing a shift in the opinions held.
Investigative Biology Laboratory