Introducing an old calculating instrument in a new technologies environment: a praxeological analysis of students' tasks using different registers
POISARD, CAROLINE; University of Patras
The Chinese abacus is the resource presented in this paper, to teach and learn number sense and place-value system at primary level. The Chinese abacus can be material, virtual (software) or drawn on a worksheet. We present three tasks and analyse them in term of techniques and relative knowledge. We show how these tasks can be solved by students in different registers (material, software, paper-and-pencil, fingers, oral) which is important for both students' understanding and teachers' activity.
Material and virtual resources, praxeology, task, technique, technology, register, number sense, place-value system, Chinese abacus