TY  - JOUR
ID  - Hardmann2007
T1  - Making sense of the meaning maker: tracking the Object of activity in a computer-based mathematics lesson using activity theory
A1  - Hardman, J.
JA  - International Journal of Education and Development using Information and Communication Technology
Y1  - 2007
VL  - 3
IS  - 4
SP  - 110
EP  - 130
ER  -