be a good teacher

Last week the head teacher came into our class and told all of us that our teacher was sick.
Then he said that he was going to choose a student to teach the class. To my surprise he choose me!!! So, I went to the white board i was felt happy and frightening.I don't know what should i do next so i was smiled and say hi everybody!my name dany i am yours new teacher today to the students. I was taught my students as i can and what i had done before.I was explain them slowly and carefully.
At the second i was gave them a small test and ask them with the questions because i want to know them they were caught me when i was taught them or not,but they were clever they were answered my questions.I was made one game that connect with the lesson.I was gave them to prepared the sentences that were connected with a grammar like present simple,past simple...etc.who's the first finish i was gave them with my present.I do that because i wanted my students pround of them self and they will study more harder then this for race with another students.In the class i was kidding and politely with them.,do like this it can make the students interesting on me so they are all will listen to me and this teaching can't be the student bored and i'm not tired too.