Study: Gesturing may prime children's brains to learn math
Students told to gesture are four times more likely to correctly express new ways to solve a math problem, according to a study of third- and fourth-graders by researchers at the University of Chicago. Children told to gesture who then received a lesson were able to solve 1.5 times more problems correctly than those told not to gesture.
Broaders, S., et al. (2007). Making Children Gesture Brings Out Implicit Knowledge and Leads to Learning. Journal of Experimental Psychology: General, 136(4).