The aim of this research is to explain the implementation of cooperative learning in English class of favorite school of Secondary High School 5 Batusangkar, West Sumatera; to find out the achievement of Cooperative Learning in English class of Favorite School of Secondary High School 5 Batusangkar, West Sumatera; and to know how is the strengths and weaknesses of cooperative learning methods in English class in Secondary High School 5 Batusangkar, West Sumatera. This research belongs to descriptive qualitative research. Instruments applied here were observation, interview and documentation. Grade VIII A and B Secondary High School 5 Batusangkar, West Sumatera as a pilot test to see how the cooperative learning is conducted. The findings explained that the implementation of cooperative learning in Secondary High School 5 Batusangkar, West Sumatera was effective. It helped the students to improve students' achievement in terms of academics up to 9.8. There are strengths such as: a) Having advantages in terms of delivery material by using a complete infrastructure; b) English teacher create learning that inspires students to be active; c) the students become subject of the study; d) had quite good; and e) teacher becomes a facilitator. While the weaknesses are: a) the learning process is still using the conventional model; b) English language usage not maximum; c) the process of learning tends to lead the achievement of curriculum; and d) contextual, teachers are still following the situation and condition of students.