This study investigates factors affecting the preparation and utilization ofrninstmctional materials in primary schools of Wolaytta zone. The sources of datarnwere 196 fIrst cycle primary teachers, 17 heads of school pedagogical centers, 17rnschool principals and heads of pedagogical center unit at woreda level.rnThe teacher samples were selected by employing the simple randomrnsampling technique. Furthermore, an available sampling technique was employed tornselect school pedagogical center heads, school principals and pedagogical center unitrnheads. Questionnaires, observation checklist and interview were used as datarngathering tools. The data were analyzed using percentages and descriptivernstatements. Media-related documents, preparation and utilization, school principals'rnand SPC heads' activities, the training status, fmancial and material support,rncollaborative activities, tecachers' attitude and interest were the variables to bernanalyzed.rnThe fmdings of the study, then, showed that teachers and SPC heads lack thernnecessary knowledge and skills due to inadequacy of training . There is also Lack ofrnfmancial and material resources. Similarly, school principals and SPC heads werernobserved to have less competency in accomplishing most of the expected activities.rnMoreover, the cooperative work among the teaching staff and the involvement ofrnNGOs or the community resources in the school activities were observed to be belowrnexpectation. Nevertheless, teachers' attitude and interest towards instructionalrnmaterials and the effort made by thee Regional Education Bureau to produce somernmedia-related references were more or less satisfactory.