Previous studies have shown that students learn better from an online lesson when a gesturing pedagogical agent is added (Mayer & DaPra, 2012; Wang, Li, Mayer, & Liu, 2018). The goal of this study is to pinpoint which aspect of a gesturing pedagogical agent causes an improvement in learning from an online lesson. College students learned about neural transmission in an online multimedia lesson that included a pedagogical agent who displayed specific pointing gestures (i.e., pointing to the specific component in the diagram being mentioned in th...