Abstract: This study was carried out to investigate some causal relations in the teachers` use of the Internet in teaching. With this aim, teachers were asked open-ended questions as to whether they use the Internet for instructional purposes, which benefits and drawbacks the Internet has for teachers etc. The study participants were teachers working at four different private schools at primary and secondary levels. The descriptive and correlational analyses of the responses show that there is a proportional increase in teachers` use of the Internet in teaching. The variable which is most highly correlated with the use of the Internet in teaching, is the self-perception of teachers concerning their competence regarding Internet skills. The second variable is the ages of teachers (Gamma value = .50), which are again highly correlated with the use of the Internet in teaching.