Little research in the ESL context has examined the online teaching and learning activities in high schools. One main reason is the lack of appropriate theoretical framework rather than the learners or the environment. Using data from twelve high school students and two teachers from two Malaysian schools, the current study adapted Borup et al.'s framework to identify the teachers' interaction with the students while engaged in the online writing environment. Borup et al. termed the construct as teacher engagement. Findings revealed that the teacher from the urban school was actively engaged in the interactions. However, the interactions of the sub-urban teacher were limited. The implications of this study suggest that teachers who are seen as digital immigrants need to consider the use of technology. Appropriate training and a checklist will be helpful to encourage the adoption of technology by teachers.