Summary Working memory (WM) is a significant predictor of academic performance. Emerging empirical evidence has shown that WM can be improved via computerized cognitive training (CCT). Though studies have shown that CCT can improve WM in typical and atypical populations, little is known regarding the efficacy of implementing CCT within a school setting. To address this, the current study examines whether CCT can be efficaciously implemented to remediate WM deficits in students during the school day. Among 17 participants from a school for students with learning differences, nine engaged in a CCT program for a total of 20 hr, whereas the remaining eight students engaged in an out‐of‐class reading activity. Pretest to posttest differences showed that auditory WM abilities significantly improved only for those who received the training program. These results provide initial support for the efficacy of implementing CCT training within the school setting to improve WM.