Browsing by Author "Martínez, María Victoria"

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    Mathematics education for students with intellectual disabilities: Beliefs of Chilean special education teachers
    (2024) San Martín, Constanza; Martínez, María Victoria; Rojas Sateler, Francisco; Ramírez, Chenda; Cáceres Guzmán, Andrea Natalia
    Teachers’ beliefs play a key role in pedagogical decision-making processes and thus in the educational practices applied in the classroom. Beliefs concerning mathematics have been a subject of research interest given their impact on teacher behaviour. However, little is known about specific teacher beliefs regarding mathematics education in students with an intellectual disability. The purpose of the present qualitative study was to explore the beliefs of 14 teachers and head of studies at eight special schools in Chile regarding mathematics education for students with an intellectual disability. Results reveal beliefs that place considerable emphasis on the functional teaching of mathematics, with a strong focus on handling money and practical activities. According to this perspective, mathematics can contribute to the development of autonomy and to occupational inclusion for people with an intellectual disability. The primary findings point to the need for formal teacher training in the discipline of mathematics.
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    ¿Qué nos revelan los instrumentos de observación de aula sobre clases de matemática en escuelas con trayectoria de mejoramiento?
    (2018) Martínez, María Victoria; Godoy, Felipe; Treviño Villarreal, Juan Ernesto; Varas, Leonor; Fajardo, Gabriela
    El presente estudio analiza la capacidad de dos instrumentos de observación de aula, Classroom Assessment Scoring System (CLASS) y Mathematical Quality of Instruction (MQI), para describir el funcionamiento de aulas de matemática que pertenecen a escuelas municipales chilenas con trayectorias de mejoramiento. En concreto, se busca indagar, por una parte, cómo ambos instrumentos correlacionan y coinciden en encontrar determinados rasgos de la enseñanza, y por otra, en las descripciones cualitativas que esconden los puntajes asignados a cada sala. Los resultados nos indican, por un lado, que solamente la dimensión Diálogo Instruccional de CLASS correlaciona significativamente con algunas de las dimensiones de MQI y que los puntajes asignados a las aulas efectivamente permiten discriminar la calidad o frecuencia con que cada rasgo de la enseñanza aparece en cada aula. Sin embargo, las descripciones cualitativas mostraron que en cada sala es posible encontrar múltiples rasgos positivos de la enseñanza que permitieron a los profesores conducir una buena clase de matemática, con errores y elementos ausentes, pero que fueron reemplazados exitosamente por otros elementos de la enseñanza efectiva.
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    ¿Qué nos revelan los instrumentos de observación de aula sobre clases de matemática en escuelas con trayectoria de mejoramiento?
    (2018) Martínez, María Victoria; Godoy, Felipe; Treviño Villarreal, Juan Ernesto; Varas, Leonor; Fajardo, Gabriela
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    Teacher leaders' noticing of argumentative orchestration
    (2025) Solar Bezmalinovic, Horacio; Gómez Zaccarelli, Florencia; Martínez, María Victoria; Ortiz, Andrés; Arriagada Jofré, Victoria Paz; Mursell Montenegro, Kurt Heinz
    Teacher leaders (TLs) play a pivotal role in monitoring and fostering teacher awareness to enhance the quality of teaching practices, particularly in domains like mathematics education. Within the mathematics curriculum across various nations, this monitoring effort has been channelled towards nurturing crucial competencies such as argumentation among students. While existing literature underscores the significance of instructional support in fostering student argumentation, it’s imperative to recognize that developing a keen sense of noticing extends beyond merely understanding students’ thinking processes. It involves a multifaceted approach encompassing elements like deciphering teacher responses. In the context of a professional development initiative aimed at supporting TLs to promote argumentation within mathematics classrooms, we delved into the participation of novice TLs in a program session. Our goal was to assess their capacity to identify critical events crucial for supporting argumentation in teaching and learning scenarios related to mathematics. During the session, TLs were presented with a video depicting a student argumentation scenario, tasked with recognizing key events and interpreting them in the context of fostering argumentation through instructional support. We employed an adapted noticing scale van Es (in: Sherin MG, Jacobs V, Philipp R (eds) Mathematics teacher noticing: seeing through teachers' eyes, Routledge, Abingdon, pp 134–151, 2011) to evaluate their responses, explicitly focusing on critical events within argumentative orchestration. Findings show that TLs demonstrated an estimable level of proficiency in recognizing essential events of argumentation. Notably, a majority showed an ability to establish meaningful connections between identified critical events and a framework for argumentative orchestration. This suggests promising potential for TLs to support and facilitate argumentation within mathematics education settings effectively.