The study examined the Effects of Team Teaching on students’ academic performance in Basic Science in junior secondary schools in Ado Local government Area, Ekiti State. Nigeria. The study was a pre-test post-test quasi-experimental design. Purposive and stratified random sampling techniques was used to select a total sample of 140 JSS II Basic Science students (70 each experimental and control group respectively) from four junior secondary schools in Ado Local Government Area, Ekiti State. Three null hypotheses were formulated and tested at 0.05 level of significance. The instrument for this study was Basic Science Achievement Test (BSAT) and the treatment package used for the study was tagged: Team Teaching Instructional Package (TTIP). The instrument was subjected to validity and reliability mechanism. The reliability of the instrument (BSAT) was 0.89. The data collected were analysed using t-test and ANCOVA statistical analysis packages. The result of the findings showed that team teaching strategy significantly influenced students’ Academic performance in Basic Science in junior secondary schools. The implications of the results on students’ academic performance in Basic Science were discussed. Based on the findings, it was recommended that teaching Basic Science by the teachers should be encouraged through Team Teaching Strategy to enhance better understanding and good academic performance.

Team teaching, Basic Science, Science Education, instructional package, academic performance.