@inproceedings{ Castro-Martinez_CASTRO:399-406,

author = { Encarnacion Castro-Martinez and ENRIQUE CASTRO MARTINEZ } ,

title = { THIRD GRADES¿STRATEGIES AND USE OF RELATIONAL THINKING WHEN SOLVING NUMBER SENTENCES },

booktitle = { JOINT MEETING OF PME 32 AND PME-NA XXX (32) (32.2008.MORELIA) },

year = { 2008 },

pages = { 399 - 406 },

location = { MORELIA },

}