Abstract
AbstractUndergraduates (n = 132) learned about the human respiratory system and then taught what they learned by explaining aloud on video. Following a 2 × 2 design, students either generated their own words or visuals on paper while explaining aloud, or they viewed instructor‐provided words or visuals while explaining aloud. One week after teaching, students completed explanation, drawing, and transfer tests. Teaching with provided or generated visualizations resulted in significantly higher transfer test performance than teaching with provided or generated words. Furthermore, teaching with provided visuals led to significantly higher drawing test performance than teaching with generated visuals. Finally, the number of elaborations in students' explanations during teaching did not significantly differ across groups but was significantly associated with subsequent explanation and transfer test performance. Overall, the findings partially support the hypothesis that visuals facilitate learning by explaining, yet the benefits appeared stronger for instructor‐provided visuals than learner‐generated drawings.
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