Many undergraduate chemistry students struggle to understand the concept of stereoisomers, molecules that have the same molecular formula and sequence of bonded atoms but are different in how their atoms are oriented in space. Our goal in this study is to improve stereoisomer instruction by getting participants actively involved in the lesson.…

Previous work has found that guiding problem-solvers' movements can have an immediate effect on their ability to solve a problem. Here we explore these processes in a learning paradigm. We ask whether guiding a learner's movements can have a delayed effect on learning, setting the stage for change that comes about only after instruction. Children…

The gestures children spontaneously produce when explaining a task predict whether they will subsequently learn that task. Why? Gesture might simply reflect a child's readiness to learn a particular task. Alternatively, gesture might itself play a role in learning the task. To investigate these alternatives, we experimentally manipulated…

When children explain their answers to a problem, they convey their thoughts not only in speech but also in the gestures that accompany that speech. Teachers, when explaining problems to a child, also convey information in both speech and gesture. Thus, there is an undercurrent of conversation that takes place in gesture alongside the acknowledged…

Asked eight adults to instruct third- and fourth-graders individually in a math problem. Found that the adults offered more variable instruction to children who produced gesture-speech mismatches than to children with no mismatches--more types of instructional strategies and more instructions that contained two different strategies, one in speech…