The academic performance of pupils in secondary schools in Mwense district has not been very good in recent years. These schools are Kashiba, Lukwesa, Sunshine, Musangu, Mutima, Mukumbwa, Mambilima and Mwense Secondary schools. In order to improve the academic performance of pupils in these schools, the Government of the Republic of Zambia through the Ministry of Education, Science, Technology and Early Education came up with a Strategic Plan. This research study sought to assess the impact of the Strategic Plan on learners’ academic performance in these schools in Mwense District. Its objectives were to determine teacher’s effectiveness in the implementation of the Strategic Plan; ascertain factors that act as barriers in the implementation of the plan and establishing possible measures aimed at mitigating barriers to an effective implementation of the Strategic Plan. Through the use of quantitative and qualitative research techniques, the findings showed that teachers were being effective in implementing the Strategic Plan while the absence of adequate teaching and learning materials was the major barrier to a successful implementation of the Strategic Plan. This barrier can be mitigated by allocating enough resources towards implementing the Strategic Plan. Teachers should continue providing guidance to learners for them to have interests in different subjects. There is need for head teachers to continue playing a supervisory role on teachers and to reviewing the effectiveness of the Strategic Plan on a termly basis.