Do first year students know how to solve simple linear equations? An experiment with T-algebra

Do first year students know how to solve simple linear equations? An experiment with T-algebra / Marina Issakova .
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. 10-11 .