Given the relationship between temporal and materials organization and poor school performance, it is clear there is a need for interventions to address these difficulties. We recently sought to address this need by completing a small randomized trial of an organizational skills intervention for children with ADHD (Langberg, Epstein, Urbanowicz, Simon, & Graham, (2008). The intervention was highly effective in improving materials organization and homework management and resulted in significant improvements in homework problems and grade point average. These results demonstrate the considerable promise of organizational skills interventions for children with ADHD. However, the Langberg et al. intervention was implemented as an after-school program operated by research staff with minimal involvement from school personnel. In order to promote the widespread adoption of interventions that address the organizational skills deficits of children with ADHD, the intervention must be feasible for school counselors and psychologists to implement within the time constraints of a typical school day. Accordingly, the primary goal of this study is to adapt and refine the existing intervention protocol (Langberg et al., 2008) to create a product that is highly acceptable to parents, children, teachers, school counselors and school psychologists and is feasible for school personnel to implement during the school day.