Abstract: Self-explanation is a beneficial technique used to deepen conceptual understanding (Chi, Bassok, Lewis, Reimann, & Glaser, 1989). This experiment combined online videos and self-explanation to create a way to deepen one’s understanding of probability. The experiment had two conditions: a video condition and a video self-explanation condition. The results suggested that video learning combined with self-explanation was more effective than video learning alone. Using videos in conjunction with self-explanation is a technique that educators can use to improve learning.