English Teacher's exchange or comparative study is very important for teachers to compare how to teach English actively and creatively. A teacher exchange is where qualified teachers can swap places with teachers in other countries. It's the perfect opportunity to share ideas and knowledge, as well as learn about educational practices from different countries.Teacher's Exchange Program between Indonesia and Brunei Darussalam is one of the best experience for the writer in an additional insight into information and increase knowledge and do research teaching and collaborative teaching.