Distance education is a significant topic of discussion among faculty at all levels of education. This study produced evidence regarding the attitudes toward three distance education delivery modes for science professional development. The study involved 94 elementary school teachers who were participating in a professional development project. The three distance education strategies studied were live, interactive television (Live); videotape presentations with live wrap-around discussions (Video); and asynchronous, Web-based sessions with streamed video presentations supported by interaction through discussion boards (Web). A repeated measures design was used to analyze the attitudes of the study participants. Data on the participants' attitudes toward their distance education involvement were collected through the CTLSilhouette[TM] instrument.