Dr. Sepulveda-Lopez, Felipe

2020, Dr. Sepulveda-Lopez, Felipe, Rodríguez-Rodríguez, Cristina, Peake-Mestre, Christian

The central purpose of the present study is to assess the early numeracy skills of Chilean kindergarten students, taking into consideration the socioeconomic status (SES) of the schools they attend. A sample of 19 urban schools and 498 students were used for the study. Research Findings: The data analysis showed statistical differences in the results of students from low SES schools compared with medium and high SES schools in four symbolic number tasks: counting fluency, oral number identification, oral number comparison, and non-oral number comparison. Hierarchical regression analyses revealed a direct contribution of school vulnerability index, non-symbolic number tasks, and symbolic number tasks in number comparison performance. These analyses also revealed that school vulnerability index made a loose predictive contribution when symbolic number tasks were introduced into the model. Practice or Policy: The achievement gap detected in the early stages of formal education will most likely increase with time. Early detection of mathematics learning difficulties, effective intervention, and training of teaching staff may be means of equalizing the performance of students from different socioeconomic backgrounds.

2024, Varas-Pavez, Antonia, Dr. Sepulveda-Lopez, Felipe, Balladares, Jaime, Peake, Christian

This study investigates the relationship between intrinsic motivation, mathematics performance, and digital game-based learning (DGBL) in kindergarten students. The research sample comprised 292 children aged 5 to 6 years from diverse socioeconomic backgrounds. Instruments included an adapted Children’s Basic Psychological Need Satisfaction Scale for measuring motivation and the Woodcock-Muñoz IV battery for mathematical assessment. DGBL was implemented using software designed for training early numeracy skills. Descriptive and correlational analyses revealed significant positive correlations between intrinsic motivation and general mathematical knowledge. However, no significant correlations were found between motivation and early numeracy skills in the DGBL environment. The findings highlight the importance of intrinsic motivation in early mathematical learning and suggest the potential effectiveness of DGBL in promoting mathematical skills, contributing to reducing the gap of knowledge at this educational level. This study provides valuable insights for educators seeking to enhance mathematical learning through intrinsic motivation and DGBL strategies in kindergarten education.

2019, Guzmán, Bárbara, Rodríguez, Cristina, Ferreira, Roberto A., Sepulveda-Lopez, Felipe

En el presente estudio se investiga el efecto de la memoria de trabajo y la denominación automatizada rápida (RAN) en las trayectorias de crecimiento del procesamiento numérico, medido mediante Medidas Basadas en el Curriculum (CBM). Se evalúan dos grupos de niños de primer grado: un grupo en riesgo de desarrollar dificultades específicas de aprendizaje en matemáticas (riesgo-DEAM, n = 32) y otro compuesto por niños con desarrollo típico (sin-DEAM, n = 32). De todas las medidas cognitivas administradas se evidencia que la tarea de span verbal de dígitos inversos (SDI) y la subtarea de RAN-Letras contribuyen significativamente en la diferenciación del rendimiento de los grupos. RAN-Letras contribuye a la diferenciación de los grupos en el rendimiento de habilidades numéricas, mientras SDI contribuye de forma diferenciada a la ratio de crecimiento de los grupos en habilidades numéricas. Estos resultados visibilizan la relevancia de RAN y SDI para el desarrollo de habilidades de procesamiento numérico en primer grado, especialmente para niños en riesgo de DEAM. Así, SDI emerge como una tarea importante a evaluar durante las primeras etapas de la instrucción matemática, debido a su capacidad de predecir déficits en el desarrollo de habilidades numéricas.