This study presents classroom practice about the use of lesson plans in the primary schools of Bangladesh. Various video, graphs, personal observations and research findings alongside some reports depicts that this situation of use of lesson plan in the school in Bangladesh is below standard. The stakeholders of this research were 80 assistant teachers and 40 headteachers from 40 schools. 8 Assistant Upazilla Education Officer and 8 Instructor, Upazilla Resource Center selected from respective upazilla purposively. Use of lesson plan below the mark because of teacher-student ratio is high, shortage of teacher, lack of teachers' dedication and motivation, no mentoring facilities and shortage o supervision by the headteacher. Teachers faced some problems and got inadequate support from various sources in respect of preparing and using lesson plans. To change things, the authority of the government if necessary, support is provided to teachers according to the recommendations of this study. as a result, teachers can use it effectively and the quality of teaching-learning will be improved.