Teacher Collaboration and Instructional Innovation in Secondary Schools

Abstract

Teacher collaboration is increasingly recognized as an organizational mechanism through which instructional knowledge, pedagogical resources, and innovative practices circulate within secondary schools. However, conventional studies frequently represent collaboration as a single self-reported construct and rely on linear statistical associations, leaving differences between routine coordination and deeper forms of professional collaboration insufficiently examined. This study addresses this gap by conceptualizing teacher collaboration as a multidimensional professional system encompassing collaborative learning, instructional material exchange, joint teaching, peer observation, feedback, and collective problem-solving. The research further situates instructional innovation within the contemporary environment of artificial intelligence, technology-supported pedagogy, cognitive activation, differentiated teaching, and adaptive lesson design.
Using the OECD Teaching and Learning International Survey (TALIS) 2024 lower-secondary teacher data as the empirical foundation, the study proposes an explainable machine-learning framework for examining nonlinear relationships between collaborative practices and instructional innovation.