Matemáticas para vivir y conocer: Un enfoque para primaria

Cuando se habla de matemática y realidad, frecuentemente se asocia con una matemática centrada en hechos y situaciones de la vida diaria. Dicha interpretación nos dirige a una determinada concepción que, aunque tiene como referente la realidad o aspectos de ésta, no siempre la forma de integrar esta realidad en la escuela o el aula resulta ser la correcta. La escuela tiene la ineludible obligación de procurar formar personas felices, y por ello debe procurar que las personas logren integrarse y conozcan su realidad y entorno

Regression periods in infancy. A case study from Catalonia.

Based on Rijt-Plooij and Plooij’s (1992) research on emergence of regression periods in the first two years of life, the presence of such periods in a group of 18 babies (10 boys and 8 girls, aged between 3 weeks and 14 months) from a Catalonian population was analyzed. The measurements were a questionnaire filled in by the infants’ mothers, a semi-structured weekly tape-recorded interview, and observations in their homes. The procedure and the instruments used in the project follow those proposed by Rijt-Plooij and Plooij. Our results confirm the existence of the regression periods in the first year of children’s life. Inter-coder agreement for trained coders was 78.2% and within-coder agreement was 90.1 %. In the discussion, the possible meaning and relevance of regression periods in order to understand development from a psychobiological and social framework is commented upon