The ongoing, unprecedented growth of ICT, coupled with the globalisation of the economy, has created a huge challenge for education. This rapid growth of infusing ICT in education is confronting stakeholders with the effectiveness and the impact of these technological applications. This paper explores the impact of ICT implementation on Hong Kong classroom practice since the inception of the government IT initiatives with particular emphasis on teachers' perceived changes in teaching and learning, and how it interacts with a variety of contextual factors such as leadership and school climate. To deepen our understanding of how ICT acts as a lever to bring about changes in student learning, this study also relates changes in learning to various factors like frequency and types of ICT tools used in classroom teaching, and the kinds of instructional strategies. It is hoped that the findings will inform educational practitioners and researchers of the emerging pedagogical practices with ICT.