This paper shares the personal experience of a teacher educator in Hong Kong who took the opportunity of lecturer attachment to a local primary school to field-test the application of information technology (IT) in teaching a primary school subject in Hong Kong. This is with the aim to get herself familiar with the application of IT in teaching primary pupils, as well as to initiate more discussion and demonstration in promoting the use of IT to the pre-service teachers. The paper also reports on how the teacher educator planned, implemented and evaluated her teaching, along with the difficulties encountered. The paper concludes with practical suggestions for teacher educators and pre-service teachers in Hong Kong on how to implement IT effectively in primary classrooms.