Calculators

Calculators : a tool to develop number sense for pre-service elementary teachers / Stuart Moskowitz .
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. 42-43 .