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Download full textFernández-León, Aurora; Gavilán-Izquierdo, José María; Toscano, Rocío – Journal on Mathematics Education, 2021
This paper studies how four primary-school in-service teachers develop the mathematical practices of conjecturing and proving. From the consideration of professional development as the legitimate peripheral participation in communities of practice, these teachers' mathematical practices have been characterised by using a theoretical framework…
Descriptors: Elementary School Teachers, Mathematical Logic, Validity, Professional Development
León, Samuel P.; Carcelén Fraile, María del Carmen; García-Martínez, Inmaculada – Education Sciences, 2021
(1) Background: An abacus is an instrument used to perform different arithmetic operations. The objective was to analyze the benefits of mathematical calculations made with an abacus to improve the concentration, attention, memory, perceptive attitudes, and creativity cognitive abilities of primary school students. (2) Methods: A total of 65…
Descriptors: Cognitive Development, Manipulative Materials, Elementary School Students, Mathematics Activities
