@inbook{ Castro_CASTRO:81-88,

author = { Elena Castro Rodríguez and ENRIQUE CASTRO MARTINEZ } ,

title = { Prospective primary teachers¿ knowledge of pedagogical orchestration in problem-solving instruction },

booktitle = { Proceedings of the First PME Regional Conference: South America },

isbn = { 978-956-6031-01-7 },

publisher = { PME },

pages = { 81 - 88 },

year = { 2018 },

}