Which actions will make a student well prepared for a group discussion?

Example: I believe that phones should be banned in schools because the London School of Economics says it proves to be disruptive in an educational environment, as well as a prof. from Lee University said that

Example: I agree with the fact that phones should be banned in school, but to be more eco-friendly, perhaps devices from the school with restrictions on websites would be great.

Happy learning!

--Applepi101