Improving students' knowledge and application of American Psychological Association (APA) formatting rules typically involves spending class time reviewing or practicing these rules. Screencasts (narrated lectures with real-time screen capture) can reduce the time professors devote to teaching APA format. In addition to imparting rules, screencasts illustrate how to implement rules in a digital environment. Across two experiments, we examined whether screencasts effectively taught students how to generally set up a paper and a title page in APA format. Compared to students who accessed the "APA Manual," students who viewed screencasts demonstrated significantly greater gains in knowledge and corrected more errors in a digital environment. When technological demands were higher, students found the screencasts more informative, interesting, and useful than the "APA Manual."