More than two visual devices are used. One or two students do most of work. Only one or two students participate in class discussion. All students work, but do not participate equally. All students participate in class discussion, but not equally.
All students participate actively in the process and presentation of the findings.
The great cloning debate is now over at this time. We will be discussing several more research issues in the future. Also, thanks to my students and their constant curiousity about genetics.