DECOLONISING LANGUAGE PEDAGOGY: AN EX-POST FACTO ANALYSIS OF INDIGENOUS LANGUAGE TEACHER TRAINING AND INSTRUCTIONAL EFFECTIVENESS IN NIGERIAN SECONDARY SCHOOLS

Abstract

The study examined the decolonising language pedagogy: An ex-post facto analysis of indigenous language teacher training and instructional effectiveness in Nigerian secondary schools through assessing the teaching effectiveness between trained and untrained teachers in indigenous language instruction for sustainable creativity. The study filled the gap of the paucity of empirical ex-post facto studies on indigenous language teacher training and influence on instructional effectiveness for sustainable creativity in Nigerian schools by examining the existing conditions and determine the possible influence of prior teacher training experiences on instructional effectiveness  The population comprised all Language teachers in Ondo state and 480 sample selected through stratified random sampling technique, ensuring representation across urban and rural schools in the three senatorial districts of Ondo state. The study compared two groups of 240 trained and 240 untrained teachers in indigenous language pedagogical practices for creative learning outcomes. The Teacher Instructional Effectiveness Scale (TIES) and Students Learning Outcome Test (SLOT) were used to collect data from the respondents, with TIES having a reliability coefficient of r=0.82. Data were collected were analysed using t-test, ANCOVA and regression analysis. Findings indicated that trained teachers demonstrated higher competence in indigenous language pedagogy, learner-centred strategies and creative instructional delivery than untrained teachers. Furthermore, teacher training was found to be a significant predictor of students’ sustainable creativity. The study recommended policy reforms that prioritize indigenous language teacher education, continuous professional development, and curriculum redesign to reflect local cultural realities, thereby fostering sustainable educational development in Nigeria.