(Utilizando a Aprendizagem Baseada em Problemas/Projetos para o desenvolvimento de um ventilador mecanico no Brasil: a percepçâo de graduandos sobre seu aprendizado e satisfaçâo)
Autores/as:
Evangelista, Sérgio H. and Bestard, Guillermo Alvarez and Oliveira, Fábio Henrique M. and da Silva, Isaac Ambrósio and Amorim, Fábio Ferreira and Llanos, Carlos H. and Barbalho, Sanderson César Macêdo
Resumen:
There are few experiences using Problem/Project-Based Learning (PBL) approaches involving projects in critical situations such as lockdown processes. Given that the role of engineering education has gained prominence within Science, Technology, Engineering and Maths (STEM) area, this work discusses some problems and strategies used in a case study developed with undergraduate students during the COVID-19 pandemic. The case study consisted of developing a mechanical ventilator adapting PBL strategies. The major challenge was to include groups of undergraduate students from some universities of Brazil, using only virtual platforms to collaboratively leverage design processes throughout technical-based teams for developing a low-cost mechanical ventilator. Therefore, this research covers two stages. The first was the action research, where professors and students worked together to develop the equipment. Then, after six months of activities entirely performed remotely, a questionnaire was made available to students to assess learning, motivation, difficulties, among others. This paper reflects these two moments at the project execution. The perception analysis of students’ learning and satisfaction demonstrates that the project provided a socialization space in times of pandemics. Finally, it was noticed that the totally virtual environment did not negatively impact students.
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(A machine learning model to predict standardized tests in engineering programs in Colombia)
Autores/as:
Soto-Acevedo, Misorly and Abuchar-Curi, Alfredo Miguel and Zuluaga-Ortiz, Rohemi Alfredo and Delahoz-Domínguez, Enrique J.
Resumen:
Forecasting of Standardized Test Results for engineering students through Machine Learning This research develops a model to predict the results of Colombia’s national standardized test for Engineering programs. The research made it possible to forecast each student’s results and thus make decisions on reinforcement strategies to improve student performance. Therefore, a Learning Analytics approach based on three stages was developed: first, analysis and debugging of the database; second, multivariate analysis; and third, machine learning techniques. The results show an association between the performance levels in the Highschool test and the university test results. In addition, the machine learning algorithm that adequately fits the research problem is the Generalized Linear Network Model. For the training stage, the results of the model in Accuracy, AUC, Sensitivity, and Specificity were 0.810, 0.820, 0.813, and 0.827, respectively; in the evaluation stage, the results of the model in Accuracy, AUC, Sensitivity, and Specificity were 0.820, 0.820, 0.827 and 0.813 respectively.
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(Un Modelo de Objetos de Aprendizaje para Cursos de Química)
Autores/as:
Muñoz-Arteaga, Jaime and Muñoz-Lozano, Lea Yvonne and Amador, César Velázquez and Villalba-Condori, Klinge Orlando and Adúriz-Bravo, Agustín
Resumen:
Currently, there are a large number of virtual learning objects (LOs) available to chemistry students and teachers. These LOs present interactive contents that complement the study of chemical phenomena in classrooms and laboratories. Given the diversity and heterogeneity of the educational contents addressed and the methods used by the available offer, the present work proposes a model to design and evaluate LOs, especially those that integrate simulation as a basic mechanism to support in particular practical activities. The simulation is proposed to help the student to put in practice chemical processes, prove the chemical model and validate theoretical concepts. A case study presents the structure of Biochemical courses composed of several LO’s integrating the simulation mechanism. Finally, an evaluation instrument is proposed to identify how the simulation mechanism supports practical activities offered in a learning object as part of a chemistry course.
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(Experimentos de Laboratorio para la correcta Comprensión del Efecto Fotoeléctrico en un Contexto de Enseñanza/Aprendizaje)
Autores/as:
López-Segovia, Alba and Rodríguez-Rodríguez, Ignacio and Rodríguez, José-Víctor and Pardo-Quiles, Domingo and Campo-Valera, María
Resumen:
It is established that physics and engineering students struggle to effectively learn the physical foundations underpinning the photoelectric effect when taught solely via a theoretical approach. In response to this, and contrary to the approaches based on computer tutorials, this paper introduces a set of laboratory experiments that analyze the above phenomenon from a practical perspective. The aim hereby is to visually demonstrate and clarify the main concepts of the photoelectric effect using real equipment. Specifically, the relationship between incident lighting (across different wavelengths and intensities) and the generated photocurrent is studied using a specially designed simple device. The experiments furthermore calculate the Planck constant, elucidate the linear relationship between photon energy and frequency, and prove that the stopping voltage is independent of the incident light intensity. Hence, the proposed experiments may foster a deeper understanding of the corpuscular nature of light among students.
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Autores/as:
Laparra, Valero and Pérez-Suay, Adrián and Piles, María and Muñoz-Marí, Jordi and Amorós-López, Julia and Fernandez-Moran, Roberto and Fernández-Torres, Miguel-Ángel and Adsuara, Jose E.
Resumen:
The advent of digital technologies and the rapid growth in access to high-speed internet has revolutionized teaching and learning practices. In this work, we focus on the use of video in the higher education space. In particular, we question whether summary videos of learning objectives and exercises can be used effectively to enhance learning. Recent methodologies and the new online paradigm have increased the use of Learning Management Systems (LMS), especially at the higher level education system. One of the advantages is that LMS allows the acquisition of objective data from student activity. In our study, we applied the video-mentioned methodology and further analyzed the student’s behavior. This allows us to provide a student categorization based on their online profile activity and concisely characterize their LMS platform interaction. The study was developed in an undergraduate Engineering degree course at the Universitat de València, allowing us to measure the success of video use for students. Our promising results indicate there is a relation between access to educational videos and the student’s academic performance, supporting educational videos can be effectively used to enhance learning.
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(Mejorando el Aprendizaje de Programación en el Estudiantado de Ingeniería mediante Aprendizaje por Descubrimiento)
Autores/as:
Aldalur, Iñigo and Sagarna, Xabier
Resumen:
Programming is basic to all engineering studies and a complicated subject for many first-year students. Many of the problems stem from the difficulty students have in finding the solution they need on the Internet, which makes students more dependent on the lecturer. Add to this the need for students to use new technologies in the classroom and the rapid digitization caused by the COVID-19 pandemic, the use of the Discovery Learning through WebQuests instructional model is of great help to students. For this subject, students are required to learn C programming using Visual Studio. The results show that WebQuests have contributed to improve academic results and skills such as teamwork, motivation and imagination to solve the problems posed. Students find themselves able to think of appropriate solutions, sometimes more than one solution, and carry them out. In addition, students conclude that the WebQuests have helped them to use their imagination, generate creative ideas and increase their ability to put what they have learned into practice.
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(Clasificación de lecciones aprendidas generadas por estudiantes en la práctica del aprendizaje basado en proyectos)
Autores/as:
Jaime, Arturo and Blanco, José Miguel and Domínguez, César and Usandizaga, Imanol and Arruabarrena, Rosa
Resumen:
Some project-based organizations report and share knowledge through lessons learned in order to improve performance in future work. The objective of this study is to test whether the use of this technique, in Project-Based Learning, is sustainable over time. Also, it is interesting to test what are the types of lessons generated most frequently, whether they have interest for the learners, and whether the activities involved are satisfactory for them. The research is carried out by incorporating the lessons learned technique into a Project-Based Learning experience over several years. The methodology consists of the analysis and classification of lessons, published in a blog, and the data collected about the students (grades and opinions). The results show that technological lessons are the most numerous and visited, followed by methodological lessons in terms of generation, and work organization lessons in terms of visits. Moreover, the opinions of the students are very positive in all activities related to the dissemination, generation, learning achieved and usefulness of the lessons in a fairly unanimous way. In conclusion, the lessons learned technique serves as a good complement to reinforce Project-Based Learning, enabling students to acquire knowledge, perceive its practical usefulness, and express satisfaction with the activities involved.
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(Plataforma Educativa basada en una Viga Mecánica con desempeño en Tiempo Real)
Autores/as:
Ojeda-Misses, Manuel Alejandro and Chavero, Carlos Dávila
Resumen:
This article presents an educational platform for Mechanics of Materials based in a beam, an Arduino, a smart phone, and Matlab-Simulink with real-time performance. The platform components are given by hardware setup and software setup that these are described. Performance of the platform is assessed by means of real-time experiments using ArduinoIO package for a beam using loading configurations. The platform is easy to implement and to interface using Arduino, electronic circuits, and any computer. The platform is considered portable, reliable, and low-cost, that it can develop for students, opening many new possibilities for practical assignments in Engineering for courses of statics and Mechanics of Materials. Finally, these are included experiments and studied topics during various practices.
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(Mapping the asymmetries of graduate programs in Brazil: modelling, visualization and reporting of estimates)
Autores/as:
da Silva, Daniela América and Marques, Johnny Cardoso and Tasinaffo, Paulo Marcelo
Resumen:
The graduate programs in Brazil have shown numerical growth and its evaluation system is approved by the national and international academic community. However, even with the growth and improvement of Brazilian graduate programs, the country has continental dimensions and coexists with regional asymmetries. Additionally, until nowadays has not been presented a comprehensive study on the variations in the distribution and growth of graduation programs by small geographic regions in Brazil. This study consists of a graduate program mapping by mesoregions, and the meta-model elaborated here aims to map the existing asymmetries in Education in the country to respond to scientific and technological development.
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(Hacia el logro de competencias para el aprendizaje de idioma inglés a través del uso de un aplicativo: Un caso de estudio)
Autores/as:
Maraza-Quispe, Benjamín and Concha-Fuse, María Florencia and Torres-Loayza, Jorge Luis and Reymer-Morales, Grunilda Telma and Choquehuanca-Quispe, Walter and Llanos-Talavera, Kelly Shirley and Laura-Melendrez, Rafael
Resumen:
Mobile language learning applications for smart mobile devices have greatly evolved in recent years. These applications have great potential to help students learn the target language. The present research aims to evaluate the achievement of the competence to read various types of written texts in English as a foreign language using the Duolingo application. The methodology followed is quantitative, in which an experimental group and a control group, each consisting of 24 students, were selected through convenience random sampling. In the experimental group, 25 learning sessions were conducted using the Duolingo application over a period of 3 months, while the control group received no treatment. A Pre-Test and a Post-Test, extracted from the official “British Council” website, were implemented. Entrance tests, feedback tests, and exit tests were administered. The results demonstrated that the Duolingo application has a positive and direct influence on the consolidation of the competence to read various types of written texts in English as a foreign language. A significant improvement was evident compared to the initial results with the exit test, with 77.3% of the sample achieving or surpassing the expected level of performance. In conclusion, participants expressed interest in various aspects of Duolingo, such as forums, podcasts, and identifiable themes in each lesson. However, two drawbacks have been identified, namely occasional issues with speech recognition and limitations in advanced language skills.
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