TY - JOUR
T1 - Čo všetko nám prezradí jednoduchá úloha
A1 - Kupková, Erika
JA - Obzory matematiky, fyziky a informatiky
Y1 - 2000
VL - 29
IS - 3
SP - 14
EP - 19
SN - 1335-4981
N2 - 12-years old children are given three or four different answers to the same mathematical problem. They have to decide which of them are right and why. Their strategies of result checking are studied and analyzed.
ER -