TY  - JOUR
AU  - Molina, Marta
AU  -  Castro, Encarnación
AU  -  Mason, John
TI  - Elementary School Students´ Approaches to Solving True/False Number Sentences.
JO  - PNA
PY  - 2008
SP  - 75
EP  - 86
VL  - 2
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PNA_2008_2008_1_a5/
LA  - en
ID  - PNA_2008_2008_1_a5
ER  -