Singer, Janice Ann
Representations of proportinal relatinships : are children part-part of part-whole reasoners?
- 231-246
- 23, No. 3, 1992
Marzo 1993
= EDUCATIONAL STUDIES IN MATHEMATICS
CONCEPTOS MATEMATICOS DESTREZAS DEL PENSAMIENTO NUMEROS NACIONALES PROCESOS COGNITIVOS PROPORCIONES (MATEMATICAS) RESOLUCION DE PROBLEMAS