This paper reports on an action research study that investigated factors influencing TESOL (teaching English to speakers of other languages) teacher candidates' (TCs) selection and use of technology in the English as a second language (ESL) classroom and the influence of explicit training in context in the use of computer technology for second language learners at the PreK-12 grade level. The data suggest that developing these skills in a highly contextualized setting enhances ESL teachers' knowledge, skills, and beliefs in terms of the use of technology in the ESL classroom. (Contains 2 tables.)