A binational team of investigators culturally adapted, implemented, and tested the efficacy in Mexico of "keepin' it REAL," a US-designed prevention intervention for youth. This article reports on the social validity of the adapted intervention by assessing its feasibility, acceptability, and utility, as perceived by participating middle…

This mixed methods case study focuses on one school's experiences with Do the Write Thing (DtWT) Challenge, a national violence prevention program for middle schools. Using the theory of planned behavior as a theoretical framework, we examined program impact and learning activities. Students in participating schools demonstrated significantly more…

Although student covariation reasoning has been explored in depth to improve understanding of the correspondence between variables, research has focused on studying existing reasoning about variables in Cartesian representations. The working method had a qualitative approach, with a descriptive exploratory scope, the spontaneous representations…

This paper reports the results of research in which the objective was to explore the preconceptions of slope in seventh-grade students. Preconceptions are understood as students' knowledge prior to the formal teaching of a certain concept. For data collection, task-based interviews composed of ten tasks applied to 21 Mexican students were used.…

This paper reports on the characterization of the inductive reasoning used by middle school mathematics teachers to solve a task of generalization of a quadratic pattern. The data was collected from individual interviews and the written answers to the generalization task. The analysis was based on the representations and justifications used to…

This article reports on effects of two earthquakes in Mexico on adolescents attending middle school. The earthquakes struck in close succession during the implementation of a school-based prevention program, providing an opportunity to assess emotional distress due to the earthquakes and whether the life skills taught in the program affected how…

Number sense has been considered as one of the most important mathematical notions to be addressed in school mathematics in the 21st century. In this paper, we identify how students of a public middle school, located in a rural area in Mexico, showed several aspects of number sense by performing tasks involving arithmetic operations in a shopping…

Teacher productive disposition is considered as one of the key strands of mathematical proficiency. Teacher disposition and positioning (disposition in action) toward mathematics influence student learning. However, teachers' productive disposition does not always translate into productive positioning in the mathematics classroom, and vice versa.…

Purpose: To test a structural equations model that analyzes the effects from satisfaction and frustration of the basic psychological needs on motivation types and the same effects on engagement and disaffection in physical education class, and to validate invariance among gender groups. Method: The participants were 1,470 fifth- and sixth-grade…

Purpose: This paper aimed to examine moderate-to-vigorous physical activity (MVPA) levels in physical education. Method: A review of reviews was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The screening process, data extraction, assessment of the risk of bias, and analysis of the…

Introduction: The social context can influence the biological maturation process, favoring or damaging the functioning of the nervous system. The impact of the environment on the frontal lobe is of great relevance since the so-called Executive Functions (EF) are developed there. EFs are in charge of planning, anticipating, executing behavior and…

Promoting adhesion to attitudes toward gender equity is critical to achieving more equal societies, yet endorsement of gender equality among Latin American adolescents remains lower than global averages. This study investigates the role of school environments, civic knowledge, and authoritarianism in shaping gender equity attitudes among 8th-grade…

The aim of the study was to describe student profiles associated with educational achievement from four sets of personal variables: psychological, academic, health, and technology use. A representative sample of middle school students from Baja California, Mexico, was given an ad hoc questionnaire and academic results were obtained from a…

Dominant approaches to teaching social studies often marginalize bilingual and bicultural students. This is particularly troubling because the explicit goal of the social studies is to cultivate civic participation. Educational inequalities are thus tied to political inequalities. In light of this, this article shares a narrative case study of the…

We propose a process of contextualization based on seven empirically derived contextualization principles, aiming to provide opportunities for Indigenous Mexican adolescents to learn science in a way that supports them in fulfilling their right to an education aligned with their own culture and values. The contextualization principles we…