Testing is a relatively neglected component of the computer science curriculum. It lacks the glamour associated with more constructive activities such as software design and implementation. However, it is the primary verification and validation technique for software and, as such, plays a critical role in the software development process. This paper discusses some approaches to teaching software testing so that students gain practical skills as well as theoretical knowledge of software testing techniques. The goals of the paper are to raise the profile of teaching software testing and to encourage discussion of effective methods that foster student learning of software testing skills.