An alternating treatments design was used to compare the effects of a 1-s and a 5-s paced intervention on rates of letter naming by English Language Learners (ELL). Participants were four kindergarten students performing below the average letter naming level and learning rate than other ELL classmates. The fast paced intervention consisted of a 1-s paced letter modeling and 1-s response wait time combined with a 1-s intertrial interval. Alternatively, the slower paced intervention consisted of 5-s modeling, response wait time, and intertrial intervals. For three students, the 5-s paced intervention resulted in greater increases in letter naming rates as compared to the 1-s intervention and baseline condition. All students first obtained the mastery criterion level during the 5-s intervention.