Abstract:
This study sought to investigate the impact of Using English as a Medium of instruction on
Academic performance of students at G S St Bruno Gihundwe A. The objectives of the study
were; to assess the level of English usage as a medium of instruction by teachers and students in
secondary schools in Rusizi district but GS St Bruno Gihundwe A in particular, to evaluate the
level of academic performance of students at G S St Bruno Gihundwe A and to identify the
impact of using English as a medium of instruction on academic performance of students at G S
St Bruno Gihundwe A. The findings would be of benefit to the Government of Rwanda,
Educational planners and policy makers, teachers, parents, students and future researchers. The
study used a Descriptive survey design and targeted 5 administrative staff members, 24 teachers
and 837 students at G S St BRUNO Gihundwe A. The study used purposive, stratified and
simple random sampling techniques to derive a sample population. A study sample of 89 student
respondents was used for this study. Data was analyzed with the aid of Microsoft Excel and the
results were presented in the form of tables for interpretation. The study revealed that students‟
level of English during teaching-learning process is appreciable with the rate of 84.26%.
Therefore, the study is evident enough to say that the use of EMI affects the scores students
