Eccius-Wellmann, Cristina
Main Affiliation
Preferred name
Eccius-Wellmann, Cristina
Official Name
Eccius Wellmann, Clara Cristina
ORCID
0000-0001-7681-7840
Researcher ID
T-8660-2018
Scopus Author ID
57144519100
19 results
Now showing 1 - 10 of 19
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Item type:Publication, Adaptación y Validación de un Instrumento de Medición del Concepto de Variable para Universitarios(FapUNIFESP (SciELO), 2023); ; Pedro Saúl Orenday YáñezAlumnos de primer ingreso a la universidad cometen errores algebraicos cuya fuente, probablemente, es un uso incorrecto o inadecuado de las variables. Es de interés para la Educación Matemática contar con un instrumento que permita identificar cuáles son los usos y caracterizaciones de la variable que presentan mayor dificultad. El objetivo de este trabajo es la adaptación y validación de un instrumento que cumpla con estas características. Las preguntas del instrumento son un conjunto representativo de la complejidad del objeto matemático variable con los tres significados parciales: variable como incógnita, variable como número general y variable en relación funcional. Las caracterizaciones abordan niveles de abstracción que van desde la interpretación a la manipulación y simbolización. Para la validación del cuestionario, éste se aplica a 251 alumnos de las carreras administrativas de una universidad privada en Guadalajara, México. Aquellos ítems con bajas comunalidades y que en un análisis factorial muestran, ya sea factores inestables o una distribución en factores múltiples se descartan, generando un cuestionario reducido que se aplica a 129 alumnos. La confiabilidad del nuevo cuestionario es buena con un alfa de Cronbach de 0.808. Se comprueba su validez con once factores relativos a las distintas caracterizaciones de los tres usos de la variable, que explican el 75.68% de la varianza total. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Eye Tracking Characterization of Algebraic Fraction Simplifications(MDPI AG, 2025-12-18); ; <jats:p>Several major studies require that students understand and master the concepts and procedures of mathematics. More specifically, an area of mathematics such as algebra requires students to be able to simplify, operate with, or solve fractions. Many students entering university show numerous shortcomings and errors, especially when simplifying algebraic fractions. This is why we conducted a study using eye-tracking techniques to better understand how students process these types of exercises in attentional terms, comparing students who can handle them successfully against those who show errors in their procedures. For this purpose, we evaluated the eye movements of 64 students from different university majors to characterize the attentional–visual strategies they use to simplify four different algebraic fraction exercises. We found that each type of simplification exercise needs a specific strategy where some parts of the rational algebraic expressions are cognitively relevant. Students with correct answers tend to allocate attention to these elements. Students with incorrect answers tend to find similar expressions with the intention to cancel them out, without applying any metacognitive thinking. The rational algebraic expression needs to be taught in a more conceptual manner than procedural.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 17 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 45 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 40 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Desarrollo y Validación de un Instrumento de Medición de la Afectividad respecto a la Comisión de Errores en Matemáticas(2018)Scopus© Citations 3 6 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, EVIDENCES AND FUTURE OF A MATH-PLATFORM, THAT EXPLAINS REASONS OF COMMITTED MISTAKES(2020); 8 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Classification of Mexican audiences by their interest in digital news content and socioeconomic characteristics(2024); ; Alfonso Vara-Miguel<jats:p>The news industry faces challenges due to the global macro and microeconomic environment. The current digital situation leads to the study of the characteristics of the audience interested in news content products. The central aim of this research is to classify the main attribute interest in digital news content in Mexico of the audience’s market by the attributes of age group, education level, and income level. This research is based on a survey of 2,005 digital news consumers in Mexico, directed in 2022 by the Reuters Institute for the Study of Journalism at the University of Oxford for the annual Digital News Report Study. The statistical method used is data mining with decision trees that classify the audience by the attribute of interest in the news as the dependent variable and attributes of age groups, education level, and income level as independent variables. These findings confirm the segmentation of digital news consumers’ audiences. The classification in which the attributes of age groups, level of education, and income level are considered simultaneously concerning audiences’ interests indicates that some of the predictions made show that some attributes may not be significant in some subsets, except for age group. The lowest average interest in the news is between 18 and 24 years, and the highest average interest in the news, which is nearly very interested, has audiences over 35 years.</jats:p>36 2 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Electrophysiological Brain Response to Error in Solving Mathematical Tasks(2022); Scopus© Citations 1 9 2