Drawing movement and insights for the proof process

GRAVINA, Maria Alice. Drawing movement and insights for the proof process. In Proceedings of the 8th International Conference on Technology in Mathematics Teaching x, 46 s. + 1 CD-ROM. ISBN 978-80-7041-285-5 (brož.) International Conference on Technology in Mathematics Teaching. Hradec Králové : Gaudeamus, 2007, s. 9.