The National Commission on Writing called for a reform in writing instruction over a decade ago. However, teacher preparation programs still rarely provide sufficient training in writing instruction for teacher candidates. The purpose of this study was to improve the writing instruction of preservice teachers. Participating preservice teachers (N = 166) from three universities were randomly assigned to learn essential components of the self-regulated strategy development (SRSD) and the "model it" stage via content acquisition podcast (CAP)-TVs, lecture, or a practitioner-oriented article. This randomized control trial found that students in the CAP-TV condition outperformed peers in the article condition on a researcher-created measure of SRSD knowledge. Additionally, participants in the CAP-TV condition outperformed peers in both comparison groups article on a measure of modeling instruction. Results from a perceived cognitive load survey indicated that perceived cognitive load was significantly correlated with outcomes on the knowledge and performance measure for all participants. These results suggested that multimedia tools designed using Mayer's (2009) cognitive theory of multimedia learning can reduce cognitive load and increase learning outcomes. Teacher educators should consider incorporating CAP-TVs into their coursework when teaching complex instructional strategies.