The emphasis in several courses at technical faculties is on using a computer to perform numerical methods. Instead of focusing on mathematical rigorousness such courses usually concentrate on demonstrating the practical usage of numerical mathematical methods to the students. The practical usage of numerical methods is best learned by exposing the students to a large set of exercises, which they have to solve. The process of solving problems has to be supervised in order to provide the students with a swift feedback about the quality of their solutions. The following paper presents a web system for automatic assessment called Projekt Tomo, which was developed as a support tool for teaching programming and numerical methods oriented classes.