Teacher's choices as the cause of misconceptions in the learning of the concept of angle

Abstract. In this research, we highlight that pupil's misconceptions about the concept of angle, extensively treated in literature, depend also on the didactic choices made by the teachers in didactic transpositio

Reflexiones sobre algunos conceptos clave de la investigación en Educación Matemática: Didáctica, Concepto, Competencia, Esquema y Situación

Resumen La Educación Matemática, como campo disciplinario para la producción de conocimientos en torno a los procesos de enseñanza-aprendizaje de la Matemática, se consolida cada vez más en el ámbito internacional. Múltiples son los estudios que se llevan a cabo en los diferentes países; esto ha generado el uso con diferentes significados de varias expresiones, tales como Didáctica, Concepto, Competencia, Esquema, Situación, entre otros. En este breve ensayo, el autor lleva a cabo algunas reflexiones que pretenden clarificar, desde cierta perspectiva, los significados de estos términos clave que aparecen a menudo en los textos que se ocupan de la investigación en Educación Matemática. Palabras Clave: didáctica de la matemática, concepto, competencia, esquema, situación Abstract Mathematics Education as a disciplinary field for the production of knowledge about the processes of teaching and learning of mathematics, consolidates increasingly internationally. Multiple studies are carried out in different countries; this has led to the use with different meanings of various expressions, such as Didactics (Education), Concept, Competency, Scheme, Situation, among others. In this brief essay, the author performs some reflections intended to clarify, from a certain perspective, the meanings of those key terms that often appear in texts dealing with research in mathematics education. Key words: Mathematics Education, Concept, Competence, Scheme, Situation

Physical therapy and psychological intervention normalize cortisol levels and improve vitality in women with endometriosis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)There is as yet no effective treatment for endometriosis. The objective of this study was to evaluate the effectiveness of submitting women with endometriosis and chronic pelvic pain to a therapeutic protocol involving physical and psychological therapy. Twenty-six female volunteers were submitted to a treatment protocol consisting of 2.5-h sessions, once a week for 10 weeks. We applied a Visual Analogue Scale, the Perceived Stress Questionnaire (PSQ), and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). Morning, afternoon, and evening levels of cortisol were determined in saliva samples. The PSQ scores were significantly lower after treatment, whereas the scores for the SF-36 vitality and physical functioning domains were significantly higher. Salivary cortisol levels were higher after treatment in the samples collected in the morning, but not in those collected in the afternoon or evening. The post-treatment cortisol levels were similar to those reported for healthy women. There were positive correlations between vitality, role emotional, social functioning, and mental health, and negative correlations to perceived stress. In conclusion, the physical and psychological intervention protocol applied in this study to women suffering of endometriosis was effective in reducing perceived stress, normalizing cortisol levels, increasing vitality and improving physical functioning.334191198Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)FAPESP [03/09173-3