طلب بسيط

hello everyone ~
actually i have question and i need your help and your idea please
i'm emlpoyee in a school and i have grammar lesoon about (active and passive)
what i want how can i explain this lesson in a funny way because
i did not find any way to explain grammar lesson except the white board
which i find it old and boring way......
any idea to make the pupils interactive with the lesson
thank you in advance~ ~