Abstract Background Learning‐by‐teaching is a generative learning strategy in which students are told they will have to teach what they are learning to others. Although learning‐by‐teaching has been shown to be effective in some cases, few studies have established guidelines for how to optimize the benefits of learning‐by‐teaching as a generative learning strategy from a social presence perspective. Objectives This study seeks to clarify the learning‐by‐teaching hypothesis and to pinpoint the optimal level of social presence during lear...