Browsing Teses e dissertações by Subject "Addition and subtraction"
Now showing items 1-1 of 1
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-graduação em Psicologia, , 14/12/2012)Research has shown that some properties of the additive problem may cause difficulties to solve it. The most important are: the problems presentation form, the semantic structure and the position of the unknown. Two ...