Discerning the intent of the author of a historical document is critical as we seek to interpret it. Disciplinary literacy uses specialized skills that seek to maximize student engagement and achievement within specified subject areas.1 In social stud- ies, one of these critical skills is “sourcing.” Sourcing involves exploring who produced a document to better understand that person’s motivations for choosing an event to focus on and how to represent it. This article explores a free set of digital inter-actives that introduces a unique and exciting way for elementary age students to engage…