Abstract
There is an ongoing demand for feedback by students, and this in turn creates a need for assessment support. In this respect, the use of on-line assessment has a number of obvious advantages for both the instructor and the learner. Perhaps one of the most significant advantages is that it allows both of them to exploit existing technology to offer a more flexible learning environment. This paper reports on the use of an online assessment tool that provides interactive feedback to students learning linear algebra. The success is measured in terms of improved pass rate and students' satisfaction in the flexible learning opportunities that the tool offered.