The use of tensors for describing the physical properties of crystals is not particularly widespread in undergraduate curricula. Tensor concepts, however, are unavoidable in describing the properties of anisotropic media, of which crystals are a very important example. This paper describes suggested introductory material on tensors for use in an undergraduate materials science course. Special emphasis has been placed on communicating the basic tensor concepts through the use of examples. Mathematical manipulations have intentionally been minimized.