The research was aimed Improving Teachers Content Knowledge and Students Achievement through Performance appraisal Approach in South-south, Nigeria. The population of this study was 2073 sourced from selected public secondary schools in the south south zone of Nigeria while the sample size was 335. The study used a survey research design. Data analysis was done with simple regression analysis. It was established that performance appraisal feedback (beta value =5.042) has a significant influence on teachers’ content knowledge towards educational goal attainment in public secondary schools in south south zone of Nigeria. Findings also indicated that teachers’ post-performance appraisal career development (beta value=2.536) significantly influenced students’ academic achievement in public secondary schools in south south zone of Nigeria. Based on findings of the study, it was concluded that performance appraisal can determine teachers’ effectiveness in public secondary schools in south south zone, Nigeria. It was recommended among others that policy makers in the education sector should consider formulating relevant policies that effectively address teachers’ appraisal feedback towards enhancing their content knowledge towards educational goal attainment. It was also recommended that post performance appraisal career development should be sustained and sponsored as an effective strategy to influence teachers’ effectiveness in developing students’ academic achievement in public secondary schools in south south Zone of Nigeria.
and Dr Victor Asuquo Umoh2 Dr. Oto-Obong Johnson Ekpo1* (Sun,) studied this question.