Study on Effectiveness of Cooperative Language Learning on Improving Students’ English Speaking Skills; the Case of Guto Adulan Secondary School Grade Ten in Focus

: This study looked into how effective cooperative learning is in helping students improve their English speaking skills. Guto Adulan high school in West Shoa Zone, Bako Tibe Woreda was chosen as the study site and two EFL teachers and 54 students in grade ten were the participants. Questionnaires, observation and interviews were used as data collection methods and the analysis of the data was done through frequency, percentage and mean score as well as qualitative methods. Results showed that most EFL teachers had been using traditional approaches or teacher-centered language learning methods and the main cause of the low level of cooperative learning usage was the number of students in the classroom, seating arrangements, textbook volumes, misunderstanding of cooperative learning and the students' poor English language background. Suggestions were provided based on the findings to help the effectiveness of cooperative language learning and improve student speaking skills. These include motivating, encouraging and giving attention to group discussions, observing and evaluating group work, conducting feedback in groups, giving teachers more training in this area and students continuing to maintain what they have achieved and having more practice using cooperative learning. Further research on the topic is recommended as well as school management reducing the number of students in the classroom, requesting additional EFL teachers from the concerned body and supervising teachers in the classroom.