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Soledad Estrella; Sergio Morales; Maritza Méndez-Reina; Pedro Vidal-Szabó; Alejandra Mondaca-Saavedra – International Journal for Lesson and Learning Studies, 2024
Purpose: This paper aims to describe the statistical arguments produced by third-grade students (8-9 years old) and to identify the teaching support for collective argumentation in a lesson based on data comparison. A Lesson Study Group researched and planned the lesson around a problem from the official mathematics textbook.…
Descriptors: Persuasive Discourse, Open Education, Electronic Learning, Thinking Skills
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José Luis Lupiáñez; Daniela Olivares; Isidoro Segovia – ZDM: Mathematics Education, 2024
The decisions that teachers make in transforming the curriculum into specific lesson plans determine the real enactment or otherwise of curricular ideals. These decisions are shaped by the resources available and by each teacher's goals and orientations. This exploratory study employs Schoenfeld's decision-making model to examine how resources,…
Descriptors: Elementary School Teachers, Decision Making, Goal Orientation, Problem Solving
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Estrella, Soledad; Vergara, Andrea; Gonzalez, Orlando – Statistics Education Research Journal, 2021
In order to study the manifestation of data sense and identify ways of thinking about variability in authentically realistic problems in a group of Chilean fifth-grade students, a lesson plan was designed and implemented, within the framework of statistical literacy and using the "lesson study" modality, in which students were urged to…
Descriptors: Foreign Countries, Grade 5, Statistical Analysis, Elementary School Students