For decades Rwanda has been one of the Francophone countries in Africa where the language of instruction in education, business, power, and civilization was French. In 2009, the English language became the sole language used as a medium of instruction at all levels of education. This new move made most of the teachers at all levels face serious challenges to teach in English because their English proficiency was poor. ATER was born in 2009 to reinforce the teaching, learning, and use of English language in Rwanda, and it was granted legal status on December 6, 2011