The COVID-19 pandemic situation spreading around the world had brought dynamic changes in every field of life since 2019, especially in the learning processes. The processes of learning were done by using online platform. In a sudden shift in the learning processes, students were forced to adapt. Consequently, the processes of online learning…

The purpose of this paper is to investigate the affordances of the e-assessment system Numbas from an Activity Theory perspective. The study follows a qualitative research design combined with semi-structured interviews with six students and two teachers. The findings reveal that the students were able to perceive and actualise several affordances…

This paper deals with a solution allowing digital universities to extend the functionalities of their distance learning platform to offer a secure solution for the dematerialization of assessments. Currently we are witnessing the rise of digital universities, this is the case in Africa, particularly in Senegal. We are witnessing strong growth in…

Effective personalization of education requires knowing how each student will perform under certain conditions, given their specific characteristics. Thus, the demand for interpretable and precise estimation of heterogeneous treatment effects is ever-present. This paper outlines a new approach to this problem based on the Leave-One-Out Potential…

Teaching skills are fundamental for academic positions, which combine research and teaching activities. Thus, universities should look for candidates with excellent research records and teaching experience or skills; another strategy is the training of teaching staff. On the other hand, when dealing with already in-service teachers, the challenges…

In 1984 Benjamin Bloom stated that one-to-one tutorial support increased students' achievement by two standard deviations (two sigma problem). In the literature for solving two sigma problem (in order to increase student achievement), many systems were developed as intelligent tutoring systems, adaptive hypermedia systems, recommender systems and…

This research evaluates the psychometric properties of short-answer response items under a variety of grading rules in the context of a mobile learning platform in Africa. This work has three main findings. First, we introduce the concept of a differential device function (DDF), a type of differential item function that stems from the device a…

This study examines the effectiveness of an automated translation chatbot used in online interactions which consequently could enhance second/foreign language (L2) competence. Based on the sociocultural perspectives of learning, such as communication to recognize the difference from others and to be involved in sense-making processes, this study…

The CS0 course in the curriculum typically has the role of introducing students into basic concepts and terminology of computer science. Hence, it is used to form a base on which the subsequent programming courses can build on. However, much of the effort to build better methodologies for courses is spent on introductory programming courses…

This paper aims to clarify certain causes of the apparent reluctance of some classroom teachers to assist students to learn through the use computers. The main emphasis will be on primary school teaching, but it will be argued that the same, or similar, issues affect teachers at secondary and tertiary levels. It should be noted that the focus is…

In this paper we present a mobile application for self-assessment. The work describes the main features of the application and focuses on its acceptance by students and the increase on their learning, through its usage in real testing settings. The application supports the retrieval of questions based on a number of criteria and it was evaluated…

For many years assessment strategies and practices have emphasized on the one hand the importance of integrating assessment and learning and, secondly, the need to develop technological tools that facilitate this relationship and integration. In this paper, firstly we describe the EvalCOMIX® web service and then we present the opinions of…

Modern trends in educational technology have evidenced the increasing importance of mobile devices in language learning. The need of sophisticated devices that can facilitate lifelong learning wherever the students might be. Facilitating learning, however, implies that students have to be assessed through the same delivery models that are used in…

A variety of computerized interactive learning platforms exist. Most include instructional supports in the form of problem sets. Feedback to users ranges from a single word like "Correct!" to offers of hints and partially to fully worked examples. Behind-the-scenes design of such systems varies as well --from static dictionaries of…

This research focuses on the design of resources for both reappraising the knowledge of a native language for those who speak or have notions of Nahuatl, and getting familiar with terms for those who do not speak this language. An audio-lexicon Spanish-Nahuatl, ALEN, was developed taking advantage of new technologies, especially mobile devices and…