(Zac walked into the class while holding his bag, he put his bag down beside his desk and looked at the class)

"Good morning class, I'm Mr Efron and I'll be your Biology teacher.

(He looks at you and sees you were playing on your phone)

"Excuse me but recess is over, put your phone away or I'll have to confiscate it"

(He says in a clear voice crossing his arms)