"They are the same" is a phrase that teachers often hear from their students in arithmetic and algebra. But what do students mean when they say this? The present paper researches the notion of sameness within algebraic thinking in the context of generating equivalent numerical equalities. A group of Grade 6 Mexican students (10- to…

The prevailing portrayal of science and scientists within the public domain is a multifaceted mix of conventional stereotypes. Our study investigates these perceptions among Mexican children, analyzing 816 drawings and descriptions collected from fourth to seventh graders in rural and urban schools in Northwestern Mexico. Drawings were analyzed…

Background/Context: This article builds on U.S.-based research on undocumented status and schooling to examine how an elementary school teacher in Mexico successfully integrates transnational students' experiences related to unauthorized (im)migration into the classroom. Purpose/Objective/Research Question/Focus of Study: Drawing on a politicized…

This study investigates children's perceptions of environmental change and their connection to nature in Mexico's Mediterranean region, an area of global ecological significance. We used a convergent mixed methods design to analyze data from 392 fourth through sixth graders from urban, peri-urban, and rural schools. Integrating quantitative and…

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…

Since the U.S. Recession of 2008, more Mexicans are leaving than coming to the United States. Many Mexican families return to Mexico with their U.S.-born--or "American Mexican"--children and youth. Approximately 700,000 American Mexican children and youth are now living and attending K-12 schools throughout Mexico (Gandara & Jensen,…

Almost four decades after having integrated environmental education in primary education in Mexico, it is important to prove the relationship between the environmental behavior shown by students and the environmental education they perceive, therefore, a structural equations model was designed and tested with information provided by 217 sixth…

The aims of teaching have evolved along with the society in which we live, from a teaching based in memory to a one that teaches to reason, in order to adapt to the accelerated rate of change imposed by the application of scientific discoveries in our society. We have a society in continuous learning, which requires the ability to reason in order…

We present the results of a research project on arithmetic-algebraic thinking that was carried out jointly by a team in Mexico and another in Quebec. The project deals with the concepts of variable and covariation between variables in the sixth grade at the elementary level and the first, second, and third years of secondary school--namely,…

This paper presents strategies identified in Mexican rural school students in seeking structure on equivalence tasks that involve the equal sign and tasks that do not. The results arise from the pilot study of a research project on the structure of numbers and numerical operations -- a key aspect of early algebraic thinking. [For the complete…

Written argumentation is a complex skill to master. It can be assumed that students can transfer oral argumentation skills into a written format. Still, students from disadvantaged backgrounds for whom this task is highly novel require greater scaffolding to formulate persuasive arguments in writing. Therefore, there is a need for developing sound…

This study focuses on comparing the growth trajectory of border and non-border school districts regarding their fifth-grade students' performance on a standardized reading test. Using a growth hierarchical linear model, we investigated the effect of time, school location, and their interaction on students' reading performance through the State of…

The primary aim of this qualitative study was to identify the landscapes that 7-12-year old Mexican students (n = 440) would like to conserve by analysing their drawings. Another aim was to determine the environmental relationship and environmental values of 5th and 6th graders (n = 152) by studying their texts. The data were analysed using mixed…