How Effectiveness of Teacher Performance Appraisal Influence Innovation in methods of Instruction in Public secondary Schools in Tana North sub-County

Abstract The study investigated how the effectiveness of teacher performance appraisal influences innovation in instructional methods in public secondary schools in Tana North sub-county, Tana County, Kenya. Guided by Edwin Locke’s goal-setting theory, it explored the extent to which performance appraisal stimulates teacher innovation, enhances classroom management, and contributes to students’ academic performance. A convergent parallel mixed-methods design was adopted, combining a cross-sectional survey for quantitative data and a phenomenological approach for qualitative insights. The study targeted 1,450 students, 105 teachers, 10 principals, and key education officers, with a sample size comprising 145 students, 83 teachers, 6 principals, and 2 education officials. Data were collected through questionnaires, interviews, focus group discussions, document analysis, and observation, with reliability confirmed using Cronbach’s Alpha (0.8109). Quantitative data were analysed using descriptive and inferential statistics, while qualitative data were analysed thematically. Findings revealed that well-structured performance appraisals enhance teacher efficiency by promoting instructional innovation, strengthening classroom management, and fostering professional growth. However, inconsistencies in implementation, lack of adequate training, and limited support hinder effectiveness. The study concluded that teacher performance appraisals are valuable in improving instructional practices but require stronger institutional backing. It recommended that the Teachers Service Commission (TSC) and school administrators improve appraisal mechanisms through regular training, digital integration, and timely feedback. Overall, the findings emphasize that effective performance appraisal is a key driver of innovative instructional practices in public secondary schools.