How can we improve the spatial intelligence?

H. Gardner introduced the idea of multiple intelligence. One type of these intelligences is the spatial intelligenc. P. H. Maier in his thesis distinguished five elements of the spatial intelligence: spatial perception, visualization, mental rotation, spatial relation, and spatial orientation. Maier showed a modular construction system of polyhedrons, and different activities to improve the student’s spatial abilities using these polyhedrons. Our aim is the students can work without actual models, just imaging the solids. To reach this level we prepared for our student several programs to generate different kinds of spatial problems, and correct their answers. Our experiments show by using these programs the students’ results are getting better and better, so we can improve their spatial intelligence. In this paper we introduce our programs and our experimental results.