Students are welcome to form study groups and discuss ideas
for the homework together. When a student in a group finds
a solution to a homework question, however, he or she should
not just explain it to the rest of the group, but rather let
everyone get to the solution at his or her own time. Also,
each member of the group should write up the solution individually;
it is definitely cheating if a person writes up the solution
and lets others copy it.
Madhur