GeoGebra is a dynamic math software for all levels of education that combines geometry, algebra, spreadsheet, graphs, statistics and calculus in one easy-to-use program. GeoGebra has become the leading provider of dynamic math software, supporting science, technology, engineering and mathematics (STEM) education and innovation in teaching and learning around the world. We can work with this program with the 3º cicle of elementary education (5º-6º). We can ask our students to create differents geometric forms using computers. This an example of a trapeze that I have created: Here you can download the program: https://www.geogebra.org/download?lang=es