“Relevant visuals have one of the highest effect sizes of 1.4 for novice learners. In addition, learners like them! Don’t shortchange or abuse this important instructional method. Remember to keep visuals simple based on the goal of your explanation. Excluding extraneous or distracting visuals also has a very high effect size of 1.66, so maximize the value of your visuals by keeping them relevant to your learning objective.”