This piece of work is dedicated to employing technology in language learning and teaching. The author conducted a quasi-experimental study to investigate the effect of an Electronic collocation-based instructional program on Jordanian EFL tenth grade students' reading comprehension and word Knowledge. The program used to teach collocations was based on a significant mobile application: Quizlet. Reading comprehension in this study entailed two comprehension levels: literal and inferential. Word knowledge also covered two dimensions: word meaning and word collocations.