Math-kit was a joint project of the FernUniversität in Hagen (coordinator), the University of Bayreuth, the University of Hamburg, the University of Paderborn and the industrial partner Sciface GmbH \& Co. KG. Within this project, various multimedia units for mathematics higher education have been produced. Math-kit contains elements for motivation, exploration, applications, visualization as well as drills and exercises. These elements may be combined in several ways in order to support different learning objectives. Math-kit comprises Java applets, makes use of the dynamic mathematics software GEONExT and is supported by the computer algebra system MuPAD through the web.