The variational thinking of high school students based on mathematical connections was analyzed through a laboratory on linear functions. This qualitative research based on design was developed in three phases: diagnostic test, implementation of the mathematics laboratory and final test, with students from a public institution in Barranquilla,…

The system of second person singular forms of address (2PS) in Medellín, Colombia is tripartite consisting of "tú, vos," and "usted," while also including the existence of a dual "usted." The current study compares usage of the intimate "usted" versus the distant "usted" with data from an oral…

This article presents an analysis of contradictions expressed by pre-service mathematics teachers when performing two modeling tasks using their own technological devices. The study is based on theoretical aspects of contradictions in the fields of expansive learning and modeling with digital technologies. Technology and modeling tasks were…

The design of mathematical tasks has taken the replacement on the research agenda of Mathematics Education. In this article, we provide principles of design of interactive mathematical tasks that make up the reasoning and the Ethnomathematics program. The research context involved the design, the development, and the analysis of written and oral…

This qualitative study explores how a group of preservice teachers make sense of task-based language teaching principles and characteristics, especially amidst remote instruction. We draw on the analysis of 13 preservice teachers' lesson plans and teaching guides as they transitioned from in-person to remote instruction during the COVID-19…

An onto-semiotic analysis of the mathematical connections established by one in-service mathematics teachers and university students when solving a problem about launching a projectile using the derivative was carried out. Theoretically, this research was based on the articulation between the Extended Theory of Mathematical Connections and the…

Transfer is not static but a dynamic process of learning. In this article, the concept of transfer and the implications of its study are reconsidered from the theoretical basis of the complex dynamic system approach. We describe "transfer" as an emergent process that implies not a copy of knowledge applied to a new situation, but a new…

This paper is a quantitative study about learners' engagement and self-efficacy within a Virtual Reality (VR) learning environment while studying vocabulary in English in a classroom implementing a Content and Language Integrated Learning (CLIL) approach. VR was used as a tool for students to learn and better understand specific concepts studied…

This qualitative research project aims to determine the impact that Task-Based Instruction had on fifteen Intermediate English language students´ writing skills in online classes at a private institute in Cartagena. A journal, a questionnaire, and a checklist were used as instruments to collect information during the diagnostic stage. During the…

This document reports on a research study carried out in a rural public school in Colombia. The aim of the study was to identify the impact of a task-based teacher development program on three primary school teachers' teaching practices. To this effect, we used a survey, classroom observations, and semi-structured interviews before and after the…

The main goal of this study was to analyze the development of historical thinking abilities in two groups of fourth graders in Colombian schools. The study consisted of the design, implementation, and evaluation of a three-month pedagogical intervention. After an initial assessment, nine learning activities were implemented. An Intervention Group…

The elicited imitation task (EIT), in which language learners listen to a series of spoken sentences and repeat each one verbatim, is a commonly used measure of language proficiency in second language acquisition research. The "TOEFL® Essentials"™ test includes an EIT as a holistic measure of speaking proficiency, referred to as the…

This report describes the development of efficient second language (L2) writing assessment tasks designed specifically for low-proficiency learners of English to be included in the "TOEFL® Essentials"™ test. Based on the can-do descriptors of the Common European Framework of Reference for Languages for the A1 through B1 levels of…

This paper reports the results of three independent qualitative case studies that examined interactions with feedback as L2 listeners worked in self-regulated environments. Data on high-intermediate learners of English were collected from case studies conducted in Australia, Colombia and Chile. Results show that L2 listeners across case studies…

Attaining oral production is a challenge for most English language teachers because most of the strategies implemented in class do not engage students in speaking activities. Tasks are an optimal alternative to engage learners in communicative exchanges. This article presents the results of a qualitative action research study examining the effects…