Eco Matemático最新文献_第3页

Dificultades alrededor de tareas algebraicas, ¿Existen diferencias de genero? 代数任务的困难，是否存在性别差异?

Eco Matemático Pub Date : 2020-07-01 DOI: 10.22463/17948231.3017

Josué Duran-Lamus, C. Hernández-Suárez, Raúl Prada-Núñez

{"title":"Dificultades alrededor de tareas algebraicas, ¿Existen diferencias de genero?","authors":"Josué Duran-Lamus, C. Hernández-Suárez, Raúl Prada-Núñez","doi":"10.22463/17948231.3017","DOIUrl":"https://doi.org/10.22463/17948231.3017","url":null,"abstract":"Este artículo es un avance de los resultados derivados de una investigación que pretende determinar las debilidades y fortalezas que exhiben los estudiantes de décimo grado de una institución educativa de carácter privado al momento de resolver problemas algebraicos. Se adopta un enfoque cuantitativo a nivel descriptivo de corte transversal. Se selecciona una muestra no probabilística de tamaño 40 estudiantes, con edad promedio de 15 años a los que se les aplica un cuestionario compuesto por 15 ítems en dónde se proponen situaciones cotidianas o de interés general en las que se articulan diversos registros semióticos de representación. A nivel general, se encontró un nivel de desacierto de 54% de los casos. En cuanto a las fortalezas, se resalta que al menos tres de cada cuatro estudiantes pueden articular correctamente entre enunciados de situaciones cotidianas con su respectivo registro gráfico en dos dimensiones dónde se relaciona las variables Tiempo vs otra variable como Velocidad, Temperatura o Longitud. Finalmente, se evidenciaron dificultades en situaciones asociadas con la aplicación de la descomposición factorial en la solución de ecuaciones y en el establecimiento de relaciones de orden entre cantidades expresadas en diversas unidades de medida.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117122840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural health monitoring of liquid filled above ground storage tank floors: a time-reversed approach to acoustic emission source location 地面储罐地板上充液结构健康监测:声发射源定位的逆时方法

Eco Matemático Pub Date : 2020-01-06 DOI: 10.22463/17948231.2950

Boris Adolfo Zárate-Hernández

{"title":"Structural health monitoring of liquid filled above ground storage tank floors: a time-reversed approach to acoustic emission source location","authors":"Boris Adolfo Zárate-Hernández","doi":"10.22463/17948231.2950","DOIUrl":"https://doi.org/10.22463/17948231.2950","url":null,"abstract":"Acoustic Emission (AE) is a proven successful Non-Destructive Testing (NDT) method to assess the state of storage tank floors. Traditional AE source location in tanks floors is performed using only the wavefronts that have traveled directly from the source to the sensor (direct hit). The wavefronts captured after reflected from the tank walls are identified and discarded. This paper proposes a new AE source location algorithm in tanks that considers a combination of reflections and direct hits. The proposed algorithm is based on time-reversed acoustics and ray theory. The methodology uses the concept of time-reversed acoustics in which a wave detected at any location can be directed back to the source when re-created at the detection place. Therefore, the developed approach takes the time at which each wave arrives to the sensor and sends it back as if time had reversed. Ray theory is used in the methodology to account for the way in which the wavefront is reflected when encounters an obstacle such as the walls of the tank. Then, the point of intersection of all wavefronts is identified using an optimization algorithm. This point where all wavefronts intersect is considered the location of the source. The location algorithm considers the first path or direct hits from the source to the sensors combined with reflections obtained by wavefronts bouncing from the tank walls. The proposed location algorithm was validated using numerical data from 176ft diameter tank and experimentally using AE data from a tank 55ft diameter.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130631189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Descriptive analysis of personality traits in relation to gender and age of the students of the University of Pamplona at the Villa Rosario campus 潘普洛纳大学罗萨里奥别墅校区学生个性特征与性别和年龄关系的描述性分析

Eco Matemático Pub Date : 2020-01-06 DOI: 10.22463/17948231.2943

Liliana Contreras-Manrique, Rocío de Belén Contreras-Manrique, Tatiana Valentina Ovalle-Lizcano, Jaime Fernando Rincón-Leal

{"title":"Descriptive analysis of personality traits in relation to gender and age of the students of the University of Pamplona at the Villa Rosario campus","authors":"Liliana Contreras-Manrique, Rocío de Belén Contreras-Manrique, Tatiana Valentina Ovalle-Lizcano, Jaime Fernando Rincón-Leal","doi":"10.22463/17948231.2943","DOIUrl":"https://doi.org/10.22463/17948231.2943","url":null,"abstract":"The study of the investigation of personality traits in university students, was developed with a mixed approach and descriptive design whose sample is 200 students from the University of Pamplona, Villa Rosario, through the application of the Minnesota Multiphasic Personality Inventory II, the traits were determined of personality in relation to the gender and age of the students; observing an index in the degree of impulsivity in impulse control; also anxiety traits such as fear, obsessive, anguish in the male gender between the ages of 15 to 17 years; followed by the ages 18 to 25 of the same gender, with tendencies to react with feelings of sadness, and introversion and ideas of mistrust and suspicion. Then, in the female gender between 15 and 17 years old, emotions such as hysteria, extroversion, were present in the students, in a second order; ages 18 to 25 of the same gender, exhibiting being stress and hypochondriasis. In such a way these personality traits influence young university students either in their environment, particularly in the socialization processes with levels of anxiety, feelings of sadness or disorder such as depression, aggressiveness that affect the student in their learning process and interaction with their educational community and in professional training. This research was based on the theory of Erik Erickson, taking into account the stages in the development of the personality and emphasizing stage V (Identity versus Confusion of Roles), stage VI (Intimacy versus Isolation) where it was possible to give the importance, which is a fundamental basis to understand the process of human development, allowing the student to interact in a flexible, harmonious way in the environment that surrounds him.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131800287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of logical-mathematical thinking in first graders by using ict 利用信息通信技术发展一年级学生的逻辑数学思维

Eco Matemático Pub Date : 2020-01-06 DOI: 10.22463/17948231.2944

Jesús Hernando Sanabría-Pérez, María Eugenia Villamizar-Mendoza

引用次数: 0

The resolution of mathematical problems present in the pedagogical practices of the basic education teacher 基础教育教师教学实践中存在的数学问题的解决

Eco Matemático Pub Date : 2020-01-06 DOI: 10.22463/17948231.2949

Yuretsy Alexandra Reyes Cáceres, Dayana Paola Gómez-Barbosa, Karen Natalia Patiño-Contreras, R. Prada-Núñez

{"title":"The resolution of mathematical problems present in the pedagogical practices of the basic education teacher","authors":"Yuretsy Alexandra Reyes Cáceres, Dayana Paola Gómez-Barbosa, Karen Natalia Patiño-Contreras, R. Prada-Núñez","doi":"10.22463/17948231.2949","DOIUrl":"https://doi.org/10.22463/17948231.2949","url":null,"abstract":"This article is the result of a research that aims to analyze the pedagogical practices of teachers and in particular to investigate the presence and promotion of mathematical processes proposed by the Ministry of National Education of Colombia. This report focuses on the process of formulating and solving mathematical problems, considering all aspects of pedagogical practices framed in the teaching framework such as planning and preparation of classes, learning environments, learning strategies and professional responsibilities. Each of these is considered a fundamental pillar for the process of self-reflection and improvement of teachers in the classroom. As for the adopted methodology, it adjusts to the characteristics of the quantitative approach, at a descriptive level with a field design. The members of the sample are a group of 80 teachers who work in public or private institutions in Cúcuta and its metropolitan area. A questionnaire was applied that has been validated and consists of 9 items that correspond to the problem-solving process and 34 items correspond to the block of pedagogical practices that are evaluated using a five-level Likert scale. The results found allow us to highlight that 83.6% of the teachers’ state that when planning their classes, they pose problem situations using different types of support and identifying what their students are expected to learn. Based on the analysis of pedagogical practices, it is intended to answer in future research the questions: What is the mathematical process that teachers promote in the classroom? What aspects do teachers take into account when planning the class with respect to the mathematical processes. These concerns arise as a complement to the result of this research, since it is of the utmost importance that the teacher potentiates each of the mathematical processes.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128867275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Methodological strategy for the teaching of the pythagorean theorem in the eighth grade of the institution monseñor Jaime Prieto Amaya 八年级毕达哥拉斯定理教学的方法论策略monseñor Jaime Prieto Amaya

Eco Matemático Pub Date : 2020-01-06 DOI: 10.22463/17948231.2948

Henyi Maryan Gómez-Sánchez, M. Vergel-Ortega, J. Rojas-Suárez

{"title":"Methodological strategy for the teaching of the pythagorean theorem in the eighth grade of the institution monseñor Jaime Prieto Amaya","authors":"Henyi Maryan Gómez-Sánchez, M. Vergel-Ortega, J. Rojas-Suárez","doi":"10.22463/17948231.2948","DOIUrl":"https://doi.org/10.22463/17948231.2948","url":null,"abstract":"This experimental quantitative research with a descriptive approach, which was developed in a period of time of one year with the participation of the teacher of the mathematics area and a total of 100 students who were in grade 8, arose due to the difficulties that the students presented. students in the application of the Pythagorean theorem in everyday life. \u0000Due to this, the need arose to propose methodological strategies for the contextualization of the teaching of the Pythagorean Theorem and in this way, achieve a better understanding regarding this concept; For this reason, it was investigated with the students from a pre - test of prior knowledge which allowed to show the rhythms and styles of learning. \u0000After this search for information, it was possible to corroborate that the students felt more comfortable when classes were held outside the classroom; In this way, the activities were more experiential and significant, which made it possible to relate the Pythagorean theorem in a transversal way with areas such as physical education, in terms of the identification of the right triangle in different spaces of the court, measurements and distances; on the other hand, in relation to the artistic area in the formation of triangles the rectangles from origami and the way to find their measurements for the creation of these figures. \u0000 The construction of this knowledge could be verified through the application of a post test which resulted in an improvement in the understanding of the practical use of the Pythagorean theorem in different contexts.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133941710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uso de herramientas tecnológicas y su impacto en el rendimiento en el curso de cálculo II de la universidad nacional 国立大学微积分II课程中技术工具的使用及其对性能的影响

Eco Matemático Pub Date : 2020-01-01 DOI: 10.22463/17948231.2598

José Andrey Zamora-Araya, Jeremias Ramirez-Jimenez, Fabiola Delgado-Navarro

{"title":"Uso de herramientas tecnológicas y su impacto en el rendimiento en el curso de cálculo II de la universidad nacional","authors":"José Andrey Zamora-Araya, Jeremias Ramirez-Jimenez, Fabiola Delgado-Navarro","doi":"10.22463/17948231.2598","DOIUrl":"https://doi.org/10.22463/17948231.2598","url":null,"abstract":"El uso de las TIC en contextos escolares es un valioso recurso para los procesos de enseñanza-aprendizaje en muchas disciplinas y la Matemática no es la excepción. El objetivo del documento es contrastar la hipótesis de que el uso de herramientas tecnológicas en las clases del curso de MAT003 Cálculo II mejora el rendimiento académico de los estudiantes. Para ello se diseñó un cuasiexperimento con tres niveles de tratamientos cuya variable dependiente esta representada por la nota del segundo examen parcial en la asignatura. El primer grupo experimental usó videos y software matemáticos como apoyo a las clases y el segundo grupo únicamente videos, el tercer tratamiento estuvo constituido por el grupo control. Como variables de control se tomaron las notas del curso de cálculo I y del primer parcial de la asignatura de cálculo II, las cuales no mostraron tener diferencias significativas entre los diferentes grupos. Se aplicó un análisis de varianza con corrección de Welch y se calcularon los tamaños de efecto entre los tratamientos. Aunque el resultado del análisis de varianza no resultó ser significativo (0=0.053), los tamaños de efecto y niveles de aprobación por tratamiento muestran evidencia en favor del uso de TIC como medio para mejorar el rendimiento académico en el curso de MAT003 Cálculo II.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Rendimiento escolar en matemáticas de estudiantes de primaria en el municipio de Tibú Norte de Santander 北桑坦德tibu市小学生数学的学校表现

Eco Matemático Pub Date : 2019-07-01 DOI: 10.22463/17948231.2593

José Trinidad Pérez-Cabrales

{"title":"Rendimiento escolar en matemáticas de estudiantes de primaria en el municipio de Tibú Norte de Santander","authors":"José Trinidad Pérez-Cabrales","doi":"10.22463/17948231.2593","DOIUrl":"https://doi.org/10.22463/17948231.2593","url":null,"abstract":"Este proyecto de investigación tiene como propósito indagar sobre los factores sociales económicos, políticos y culturales asociados en el aprendizaje de las matemáticas en estudiantes de básica primaria del municipio de Tibú como zona de conflicto armado. \u0000La investigación realizada se hizo con un enfoque cuantitativo, de tipo descriptivo, En la cual participaron 47 estudiantes 21 padres de familia y 10 docentes. A los participantes se les aplicó una entrevista enfatizando los factores sociales, económicos y culturales que inciden el rendimiento escolar de los estudiantes. \u0000Dentro de los resultados se evidencia que: los estudiantes son utilizados para realizar trabajos en el campo, además no reciben el apoyo emocional y económico de sus padres en la orientación de sus tareas y la compra de los implementos educativos necesario para el desarrollo de su actividad académica. En cuanto a los docentes del área, no están motivados y por lo tanto no motivan a sus estudiantes y el desarrollo de sus clases son monótonas y aburridas. Los padres de familia en su mayoría son de muy de bajo recursos económicos y su grado de escolaridad es baja. De lo anterior podemos concluir que: existen factores socio-económicos que influyen en el rendimiento escolar de los estudiantes, en el cual están involucrados los docentes, que se siente poco apreciaos por la comunidad educativa, por otra parte, los estudiantes no cuentan con el apoyo y la motivación de los padres y docentes.","PeriodicalId":118520,"journal":{"name":"Eco Matemático","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127070702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Errores y dificultades en la resolución de problemas algebraicos 解决代数问题的错误和困难

Eco Matemático Pub Date : 2019-07-01 DOI: 10.22463/17948231.2590

Zulma consuelo Sánchez-García

引用次数: 0

Crea, Innova, comunica y emprende. Competencias básicas a desarrollar en cálculo en programas de pregrado 创造、创新、沟通和承担。在本科课程中培养微积分的基本能力

Eco Matemático Pub Date : 2019-07-01 DOI: 10.22463/17948231.2596

M. Vergel-Ortega, Carlos Sebastián Gómez-Vergel, Dilmar Villamizar-Laguado

引用次数: 0