This article focuses on an educational versus psychological definition of learning styles and offers a rationale for matching student and teacher style based upon this definition. A survey of various matching approaches is provided along with a classification chart that visually differentiates among alternative matching strategies. The Learning Styles Inventory (LSI) by Renzulli and Smith is then described. The LSI is a research-based instrument designed to guide teachers in planning learning experiences that take into account the learning style preferences of students within their classrooms. The instrument provides information about student attitude toward lecture, discussion, drill and recitation, peer teaching, simulation, projects, teaching games, independent study and programmed instruction. Finally, research studies related to the LSI are reviewed. (Author)