apa saja yang boleh dan tidak boleh dilakukan di kelas?

Can will do in the class :
1. Ask the teachers if you will search mean nothing in dictionary.
2. Search the answer from quetion by laptop/netbook.
3. Ask your friends or can make group study, if you not know the mean.

Cannot will do in the class :
1. Don't speaking very loudly
2. Don't eat and drink in the class, if we are nothing teacher in the class
3. Don't sleep in the class, if the teacher learning the students.

you may not to cheating  (mencontek)