Tablet computers are thought to be effective learning tools because they contain multimedia content that engages users, but it is not known whether users are engaged with the right content. Cognitive load theory has been used to frame how learning generally occurs in multimedia rich environments. Multimedia can be defined narrowly as learning from both words and pictures simultaneously (Mayer, 2001) or more broadly as learning from multiple sensory channels simultaneously (e.g., pictures and audio). When learning using tablet computers, cognitive overload can arise from presenting intrinsic content across both words and pictures simultaneously—such that it cannot be effectively integrated into working memory due to the splitting of attention—or presenting incidental extraneous content in one format that diverts attention away from the intrinsic content presented in another format (Mayer & Moreno, 2003). This overload can be addressed by synchronizing intrinsic content across formats—presenting redundant, reinforcing content that limits the effort required for integration; limiting the competition between extraneous and intrinsic content by reducing their simultaneous presentation (Kaminski & Sloutsky, 2013); or by individualizing content so that it speaks to the cognitive strengths of the user (i.e., visual content for users with larger visual short-term memory; Mayer & Moreno, 2003). Individualizing content is particularly interesting because it highlights how individual differences in users’ cognitive ability influence cognitive overload. It is not known whether the visual content on tablet computers adequately address cognitive overload.