During my first time i'm teaching in English , I went through many emotions and many questions running through my mind. I was worried that my students would not understand me but I prepared myself and worked more on my language so students will understand. The first unit that I taught my students was on air pollution, and in the beginning of the lesson, the students were followed my instruction well and they were quiet. However, I faced some difficulties in teaching my students and I hope I can improve my teaching skill for the next class.