Propuesta de Problemas: Una Actividad Matemática Creativa

Desde la enseñanza básica los estudiantes presentan dificultades al resolver problemas, ésta situación ha sido estudiada desde múltiples enfoques y diferentes niveles, pero las investigaciones concuerdan en el que los actores del proceso educativo deben implementar estrategias que aminoren dichos inconvenientes. Estudios recientes y relevantes mostraron la importancia del planteamiento de problemas para el desarrollo de la creatividad matemática, indican también que los problemas planteados pueden ofrecer una variedad de contextos para estudiar y desarrollar habilidades matemáticas. En base a lo anterior y debido a que en la asignatura de Precálculo, se plantean problemas de aplicación con la finalidad de guiar a los estudiantes para que propongan problemas y con ello se motiven a resolverlos, desarrollen su creatividad e implementen los aprendizajes aprendidos en los cursos. Since basic education students are facing difficulties in solving problems, this study was carried out based on multiple approaches and at different levels. Research supports the view that the actors in the educational process should implement strategies to alleviate the problem faced by basic education students. Recent and relevant studies showed the importance of posing problems for the development of mathematical creativity. They also indicate that the problems posed can offer a variety of contexts to study and develop mathematical skills. Based on the above and in the subject of Precalculus, problems of application have risen up so as to guide students on how to solve problems. Student’s ability to solve problems would make them feel motivated, develop their creativity, and help them apply the lessons learned in the courses

Las Representaciones Sociales De Profesores Acerca Del Aprendizaje De La Matemática: El Caso De Profesores Inmigrantes

Esta investigación aborda las representaciones sociales (RS), ideas y percepciones que tienen dos profesores de matemáticas, uno originario de Europa Oriental, y otro de un país caribeño, acerca del aprendizaje de la matemática, a partir de sus experiencias didácticas con sus estudiantes de las licenciaturas a quienes han impartido clases de manera presencial en una universidad pública en México. Para la recolección de información se empleó como instrumento un cuestionario abierto. Se establecieron diez dimensiones que consideran las preguntas del cuestionario como elementos de observación y recopilación para los propósitos de la investigación; además se establecieron las categorías de cada dimensión, las cuales son las respuestas, las RS que cada profesor tuvo sobre las preguntas. En particular se presentan los resultados de las respuestas que los profesores han manifestado y ambos coinciden que ha sido grato trabajar en México y consideran que ha sido importante su aportación para la educación, sin embargo consideran que la formación en matemática debe ser más rigurosa y los estudiantes deben dedicar más tiempo a su estudio. La idea de conocer las opiniones de los profesores pretende que en alguna investigación futura se puedan comparar sus opiniones con las de profesores de México y el impacto que han tenido en los estudiantes. This paper focuses on addressing the Social Representations (SR), ideas, and perceptions that two math teachers, one from Eastern Europe and one from a Caribbean country, have about learning mathematics. The study was carried out based on their teaching experiences with their students to the degree of those who have taught in person at a public university in Mexico. For the collection of information, an open questionnaire was used as an instrument. Ten dimensions were established that considered the questions of the questionnaire as elements of observation and compilation for the specifics of the investigation; In addition, the categories of each dimension were established, which are the answers, the SR that each teacher had on the questions. In particular, the results of the answers that the professors have expressed and both agree that it has been pleasant to work in Mexico and consider that their contribution to education has been important, however they consider that mathematics training should be more rigorous and students should devote more time to their study. The idea of knowing the opinions of the professors intends that in some future research their opinions can be compared with those professors in Mexico and the impact they have had on student

About some families of nonexpansive mappings with respect to renorming

We characterize the family of nonexpansive mappings which are invariant under renormings and we also compare the families of nonexpansive mappings under two equivalent norms.Consejo Nacional de Ciencia y Tecnología (México

Un Acercamiento A La Relación Pitagórica A Través Del Cálculo De Ternas

The Pythagorean Theorem and more formally the Pythagorean Relationship (PR), is one of the most well-known and used results in the context of school mathematics, given that it is an axis of conceptual articulation between different areas of Mathematics. However, in the school context it is common for a Didactic Reductionism to be presented, only enunciating it and presenting the algebraic expression that relates the squares of the sides of a right triangle, leaving aside its great historical and epistemological significance. In view of this problem, this documentary research aims to design an alternative proposal to broaden the understanding of the Pythagorean Relationship, which is based on the calculation of Pythagorean Ternas. Three different methods are proposed to generate positive integers, that satisfy the Pythagorean Theorem and suggest questions that can guide learning activities to promote the understanding of some important elements within Mathematics, particularly in reference to the identification of numerical patterns

SEGUIMIENTO DE UNA INNOVACIÓN CURRICULAR: UNA ASIGNATURA DE MATEMÁTICAS

In this paper we propose an emerging framework that can be useful for monitoring a curricular innovation, considering as an element of analysis the fulfillment of the innovation’s objectives and its coherence with the proposed educative paradigm, into a setting of a mathematics course, which was designed to solve a problem of high failure rates in college calculus courses. It is emphasized the influence of variables that impact on the students’ construction of mathematical knowledge and the shift of paradigm

Clasificación preliminar de especies de jardín según sus requerimientos hídricos en la región de Murcia

El desarrollo económico y social de la Región de Murcia ha conllevado desde la década de los 80 un considerable aumento de la superficie ajardinada, tanto de carácter público como privado. Esta circunstancia, unida a los graves problemas de escasez de agua, pone de manifiesto la importancia del establecimiento de jardines de bajo consumo hídrico.Este trabajo forma parte del proyecto de investigación regional PR02-03-2 financiado por la Dirección General de Investigación y Transferencia Tecnológica

Childhood leukemias in Mexico: towards implementing CAR-T cell therapy programs

Leukemias are the most common type of pediatric cancer around the world. Prognosis has improved during the last decades, and many patients are cured with conventional treatment as chemotherapy; however, many patients still present with a refractory disease requiring additional treatments, including hematopoietic stem cell transplantation. Immunotherapy with monoclonal antibodies or cellular therapy is a promising strategy for treating refractory or relapsed hematological malignancies. Particularly, CAR-T cells have shown clinical efficacy in clinical trials, and different products are now commercially approved by regulatory agencies in the USA and Europe. Many challenges still need to be solved to improve and optimize the potential of these therapies worldwide. Global access to cell therapy is a significant concern, and different strategies are being explored in the middle- and low-income countries. In Mexico, leukemias represent around 50% of total cancer diagnosed in pediatric patients, and the rate of relapsed or refractory disease is higher than reported in other countries, a multi-factorial problem. Although significant progress has been made during the last decades in leukemia diagnosis and treatment, making new therapies available to Mexican patients is a priority, and cell and gene therapies are on the horizon. Efforts are ongoing to make CAR-T cell therapy accessible for patients in Mexico. This article summarizes a general landscape of childhood leukemias in Mexico, and we give a perspective about the current strategies, advances, and challenges ahead to make gene and cell therapies for leukemia clinically available

Primer consenso colombiano sobre Chagas congénito y orientación clínica a mujeres en edad fértil con diagnóstico de Chagas

La transmisión congénita de la enfermedad de Chagas ha sido poco estudiada en Colombia y existen pocos procedimientos rutinarios en el sistema de salud para el manejo de esta enfermedad. Por ello se desarrolló un consenso de expertos dirigido a generar recomendaciones de diagnóstico y tratamiento de Chagas congénito y orientación a mujeres en edad fértil. Con ese propósito se realizó una búsqueda extensiva de la literatura, empleando una combinación de términos Mes (Chagas, Chagas congénito, prevención, control, diagnóstico, tratamiento y embarazo) para reflejar el estado del arte en cada tema de interés. Después de ello, se leyeron los resúmenes y aquellos seleccionados para análisis del texto completo. La literatura relevante se sintetizo, clasifico y organizo en tablas y se presentó al panel de expertos, el cual estaba constituido por 30 profesionales en diferentes áreas. Mediante la metodología Delphi se realizaron 2 rondas de cuestionarios virtuales y una reunión presencial en los cuales se evaluaron los niveles de acuerdo entre los participantes. Los puntos con falta de consenso durante las 2 rondas virtuales se expusieron durante las mesas de discusión en la ronda presencial. La evidencia utilizada se adaptó a las particularidades nacionales según el caso y se aprobó el contenido del documento final. Se propone que estas recomendaciones sean usadas por profesionales de la salud en Colombia.Congenital transmission of Chagas disease has not been extensively studied in Colombia, and there are no standardized processes in the health system regarding the specific diagnosis, treatment and follow-up of this disease. To generate recommendations on congenital Chagas disease and Chagas in women of childbearing age in Colombia, a consensus of experts was developed. An extensive literature search through the Medline database was carried out using the MeSH terms: «Chagas disease/congenital», «prevention and control», «diagnosis», «therapeutics» and «pregnancy». Appropriate abstracts were selected and the full texts were analyzed. The relevant information was synthesized, classified, and organized into tables and figures and was presented to a panel of experts, which was composed of 30 professionals from various fields. Based on the Delphi methodology, three rounds of consultation were conducted. The first and second rounds were based on electronic questionnaires that measured the level of consensus of each question among the participants. The third round was based on a face-to-face discussion focusing on those questions without consensus in the previous consultations. The evidence was adapted to national circumstances on a case-by-case basis, and the content the final document was approved. These recommendations are proposed for use in routine medical practice by health professionals in Colombia

Monterrey: patrimonio e industria. Seis estudios históricos

Monterrey es conocida como La Ciudad de las montañas, ya que se ubica bajo el resguardo de la Sierra Madre Oriental y otras elevaciones importantes entre las que destacan el Cerro de la Silla y el de Las Mitras. No obstante, también podríamos referirnos a ella como la Ciudad de las chimeneas, tomando en cuenta el gran número de industrias asentadas en su territorio y los municipios que conforman su área metropolitana. A fin de comprender, explicar y problematizar lo anterior, el Seminario Procesos de Industrialización de Nuevo León (SPIR NL) y la Sociedad Nuevoleonesa de Historia Geografía y Estadística (SNHGE) unieron esfuerzos por hacer posible esta publicación, en la que e analizan diferentes aristas de la temática industrial en la entidad desde un enfoque interdisciplinari