Informatinio mąstymo ugdymo konstrukcionistinėje aplinkoje projektavimo moksliniai tyrimai: pragmatistinė perspektyva

[full article, abstract in English; abstract in Lithuanian] The article examines the modern computer-based educational environment and the requirements of the possible cognitive interface that enables the learner’s cognitive grounding by incorporating abductive reasoning into the educational process. Although the main emphasis is on cognitive and physiological aspects, the practical tools for enabling computational thinking in a modern constructionist educational environment are discussed. The presented analytical material and developed solutions are aimed at education with computers. However, the proposed solutions can be generalized in order to create a computer-free educational environment. The generalized paradigm here is pragmatism, considered as a philosophical assumption. By designing and creating a pragmatist educational environment, a common way of organizing computational thinking that enables constructionist educational solutions can be found.[straipsnis ir santrauka anglų kalba, santrauka lietuvių kalba] Straipsnyje nagrinėjama šiuolaikinė kompiuterinėmis technologijomis grįsta edukacinė aplinka. Aptariami kognityvinės sąsajos, skirtos besimokančiojo įgyjamoms žinioms sieti su realaus pasaulio objektais ar reiškiniais, reikalavimai. Šį susiejimą siūloma realizuoti į ugdymo procesą įtraukiant abdukcinius samprotavimus. Straipsnyje aptariamos praktinės priemonės informatiniam mąstymui ugdyti šiuolaikinėje konstrukcionistinėje aplinkoje, akcentuojant kognityvinius ir fiziologinius aspektus ir jungiant kelių paradigmų teorijas. Pateikta analitinė medžiaga ir siūlomi sprendimai skirti kompiuterinei ugdymo aplinkai, tačiau gali būti apibendrinti ir bendrajai ugdymo aplinkai be technologijų. Filosofine prielaida čia laikoma generalizuota pragmatizmo paradigma. Projektuojant ir kuriant pragmatistinę ugdymo aplinką, randamas informatinio mąstymo ugdymo naudojant konstrukcionistinius edukacinius sprendimus būdas

Interaktyviojo geometrijos vizualizavimo modelis naudojant dinaminės geometrijos paradigmą

Straipsnyje analizuojama interaktyviojo geometrijos vizualizavimo samprata, atskleidžiamos dinaminės geometrijos konstravimo problemos. Pateikiami interaktyviojo vizualizavimo dinaminėje geometrijoje didaktiniai principai: bendrieji, skirti visai veiklos sričiai, ir specialieji, skirti interaktyviam vaizdui. Apibūdinami interaktyviojo vizualizavimo dinaminėje geometrijoje konstravimo principai: geometriniam brėžiniui ir interaktyviam vaizdui. Straipsnyje pateikiamas interaktyviojo vizualizavimo modelis naudojant dinaminės geometrijos paradigmą. Aprašomas modelio taikymo pavyzdys vizualizuojant pagrindinės mokyklos geometrijos temą. Pateikiamas modelio pagrindimas. Nusakomi tolimesnio tyrimo tikslai.A Model of Interactive Geometric Visualization with Dynamic GeometryEglė Jasutė, Valentina Dagienė SummaryThe paper deals with the exploration of the concept of the interactive visualization of geometry. Some problems of construction sketches of dynamic geometry are discussed. There are described some didactic principles of interactive visualization with dynamic geometry: general for all the activity domain and special for the interactive picture. Construction principles of interactive visualization with dynamic geometry (for geometry image and for the whole interactive picture) are also introduced. A model of interactive visualization with dynamic geometry is described and an example of its use in the visualization of an elementary school geometry theme is shown. Some suggestions on and directions for the further investigations are given.tyle="line-height: 18px;">&nbsp

Design Science Research for Computational Thinking in Constructionist Education: A Pragmatist Perspective

[full article, abstract in English; abstract in Lithuanian] The article examines the modern computer-based educational environment and the requirements of the possible cognitive interface that enables the learner’s cognitive grounding by incorporating abductive reasoning into the educational process. Although the main emphasis is on cognitive and physiological aspects, the practical tools for enabling computational thinking in a modern constructionist educational environment are discussed. The presented analytical material and developed solutions are aimed at education with computers. However, the proposed solutions can be generalized in order to create a computer-free educational environment. The generalized paradigm here is pragmatism, considered as a philosophical assumption. By designing and creating a pragmatist educational environment, a common way of organizing computational thinking that enables constructionist educational solutions can be found

Interaktyvaus vizualizavimo modelis geometrijos konstrukcionistiniam mokymui ir mokymuisi

Teaching of mathematics is one of the most complicated and demanding disciplines in a curriculum. The aim of a teacher is not only to communicate knowledge but also to engage the students, motivate them and involve in active learning process by encouraging them to construct their knowledge and competencies. Dynamic geometry systems based on the principle of constructionist learning enable to effectively involve students into the activity by constructing their mathematical knowledge and competencies. However, teachers of mathematics find it difficult to employ the systems since the technical skills of the teachers are inadequate. The visualization of secondary school geometry by using the systems of dynamic geometry systems, i.e. interactive microworlds, can help to solve the problem. The dissertation has analysed the methods of informatics which are employed to develop learning software, the capacities of dynamic geometry systems and the concepts of constructionist teaching and learning as well as interactive visualization. A model to create interactive microworlds is presented with reference to the implemented technological capacities of dynamic geometry systems and the didactics of constructionist teaching of mathematics. The syntax and semantics of dynamic geometry objects has been formalized through the abstract data types which help to describe scenarios of interactive visualization according to a model. The model has been implemented through the visualization of 9-10 grade syllabus of mathematics. Approximately 400 microworlds have been created. The performed evaluation proved that the model can be applied in different systems of dynamic geometry while the created interactive microworlds develop student's geometric skills while studying independently or using them for demonstrations in a lesson

Professional Development of In-Service Teachers: Use of Eye Tracking for Language Classes, Case Study

This article presents a study on in-service professional development of Lithuanian secondary school language teachers. The motivation is based on the understanding of language education as a highly interactive, complex process that requires a teacher’s digital literacy skills combined with integrated instructional approaches. This requires the implementation of a set of professional development activities. As a research methodology, we use a mixed method approach based on collecting eye tracking data in the first phase and, then, focus on comparative teacher self-reflection using data analysis and qualitative interviews. Finally, based on the collected qualitative and quantitative data, educational experts develop and present recommendations on the scope and direction of professional development. As a result of this study, a comprehensive set of the eye tracking data from the experiment involving 93 participants in total and 23 recorded lessons is presented. This includes variables such as number of visits, time to first fixation, number of fixations, and fixation duration vertically and horizontally. The discussion presents the results of the qualitative part of the study, including comprehensive teachers’ feedback. In conclusion, an integrated training program for in-service language teachers is presented, including an eye tracking experiment that provides data for extensive self-reflection and feedback

Professional development of in-service teachers: use of eye tracking for language classes, case study

This article presents a study on in-service professional development of Lithuanian secondary school language teachers. The motivation is based on the understanding of language education as a highly interactive, complex process that requires a teacher’s digital literacy skills combined with integrated instructional approaches. This requires the implementation of a set of professional development activities. As a research methodology, we use a mixed method approach based on collecting eye tracking data in the first phase and, then, focus on comparative teacher self-reflection using data analysis and qualitative interviews. Finally, based on the collected qualitative and quantitative data, educational experts develop and present recommendations on the scope and direction of professional development. As a result of this study, a comprehensive set of the eye tracking data from the experiment involving 93 participants in total and 23 recorded lessons is presented. This includes variables such as number of visits, time to first fixation, number of fixations, and fixation duration vertically and horizontally. The discussion presents the results of the qualitative part of the study, including comprehensive teachers’ feedback. In conclusion, an integrated training program for in‑service language teachers is presented, including an eye tracking experiment that provides data for extensive self-reflection and feedback

Pandemic-induced qualitative changes in the process of university studies from the perspective of university authorities

The pandemic COVID-19 period in education has brought many challenges to all organizations. The activities of the higher educational institutions are being affected and the situation may last for a long time. Under the current circumstances, it is important to shift to distance learning through online processes and improve educational processes at all organizational levels. Institutions have to ensure successful distance or remote learning process by identifying their opportunities, meeting challenges, and establishing the sustainable quality factors for remote or distance learning. This study aimed at identifying the pandemic-induced qualitative changes in studies that have occurred at the levels of university authorities, lecturers, and students. Universities of Lithuania were taken as a case study. The novelty of the research lies in the fact that the focus of analysis is not on the negative effects of the pandemic observed in higher education studies but on finding positive qualitative changes that are also of importance to future studies. Phenomenographic qualitative research strategy was chosen in the research and 15 in-depth semi-structured interviews with experts in university studies were conducted. Seven categories were distinguished during the research representing qualitative changes in studies at three levels authorities, lecturers, and students. The discussed levels seemed to have a mutual effect on each other. The external motivation of leaders and the support and establishment of work and online study conditions encouraged both external and internal qualitative changes in studies from the perspective of lecturers as well as students. Keywords: higher education; qualitative changes; distance learning; university authorities; lecturers; students

Metabolic parameters in WT and PRLR^−/− mice after saline or PEG-SMLA treatment.

<p>Number of mice appears in brackets. Data are represented as mean ± SEM. Different letters within each line indicate statistically different groups.Statistical analyses were performed between the all groups. b, p<0.001; c, p<0.05.</p