Education is an active process in which instructors apply various devices to make the material to be taught more suitable for students' perception. As the capabilities of available devices improve, so should the methods of teaching make the best use of them. No tool can ever replace an instructor, but tools can enhance the efficiency of education. Involving computers in the process of teaching is feasible only when it can actually provide new educational methods that were unavailable before, due to time or material limitations. In my article I'd like to introduce two such new methods that, when used together with traditional methods, can support visual education by increasing the number of possible approaches to a topic being taught. One of these methods is about teaching color theory, while the other is about shadows.