scholarly journals Use of Virtual Reality in Teaching Fractions at Elementary Level

2021 ◽  
Vol 15 ◽  
pp. 194-197
Author(s):  
Elena Fabiola Ruiz Ledesma ◽  
Abiel Tomás Parra Hernández
Keyword(s):  
Virtual Reality ◽  
Educational Software ◽  
Learning Difficulties ◽  
Mathematical Concept ◽  
Elementary Level ◽  
Play Skills ◽  
Relevant Topic ◽  
Virtual System ◽  
Teaching Fractions

The learning difficulties of the mathematical concept of fraction is a topic that has been studied by different mathematical educators, but still is a relevant topic today, because despite the proposals that have been made to improve learning, they have not been used for all teachers besides those few that are involved in the use of the technology. Besides that there is little educational software that is based on research and is validated to be taken to the classroom. This article shows a virtual system that has been created for the student to interact with it in order to connect his knowledge with his play skills, skills of discovery, reasoning, communication among others and may have a significant learning of fraction

Application of the Mechanical Impedance of Body Arm Movement Based on the Virtual Tennis System

2013 ◽  
Vol 791-793 ◽  
pp. 1436-1440
Author(s):  
Ling Hang Yang
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Arm Movement ◽  
Mechanical Impedance ◽  
Simulation Software ◽  
Computer Hardware ◽  
Calculation Results ◽  
Virtual System ◽  
Dimensional Simulation ◽  
Theoretical Results

With the development of computer hardware and software technology, virtual reality technology of computer has been widely used in various fields. Virtual teaching process is one of the main applications of virtual reality computer technology. Tennis is one of the most common sports. Tennis process mainly includes the process of catching a ball, serving a ball and hitting a ball. Virtual process of tennis system must establish an accurate numerical simulation model to calculate the mechanical impedance during the arm movement of human. According to this, it builds a model of the mechanical impedance of human arm in tennis virtual system using three-dimensional simulation software in this paper and gets the curve of mechanical impedance through the simulation. Finally, the article compares calculation results with the theoretical results and concludes that the theoretical results and simulation results are basically consistent which provide a theoretical reference for the design of the development of virtual system for the human.

scholarly journals UNDERSTANDING UNDERWATER PHOTOGRAMMETRY FOR MARITIME ARCHAEOLOGY THROUGH IMMERSIVE VIRTUAL REALITY

2019 ◽  
Vol XLII-2/W10 ◽  
pp. 85-91 ◽  
Author(s):  
M. Doležal ◽  
M. Vlachos ◽  
M. Secci ◽  
S. Demesticha ◽  
D. Skarlatos ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Educational Software ◽  
User Study ◽  
Data Gathering ◽  
Maritime Archaeology ◽  
Archaeological Sites ◽  
Immersive Virtual Reality ◽  
Digital Form ◽  
3D Mesh ◽  
Initial Results

<p><strong>Abstract.</strong> Underwater archaeological discoveries bring new challenges to the field, but such sites are more difficult to reach and, due to natural influences, they tend to deteriorate fast. Photogrammetry is one of the most powerful tools used for archaeological fieldwork. Photogrammetric techniques are used to document the state of the site in digital form for later analysis, without the risk of damaging any of the artefacts or the site itself. To achieve best possible results with the gathered data, divers should come prepared with the knowledge of measurements and photo capture methods. Archaeologists use this technology to record discovered arteacts or even the whole archaeological sites. Data gathering underwater brings several problems and limitations, so specific steps should be taken to get the best possible results, and divers should well be prepared before starting work at an underwater site. Using immersive virtual reality, we have developed an educational software to introduce maritime archaeology students to photogrammetry techniques. To test the feasibility of the software, a user study was performed and evaluated by experts. In the software, the user is tasked to put markers on the site, measure distances between them, and then take photos of the site, from which the 3D mesh is generated offline. Initial results show that the system is useful for understanding the basics of underwater photogrammetry.</p>

Mediated learning experience and its role in teaching fractions to pupils with learning difficulties

2018 ◽  
Vol 10 (2) ◽  
pp. 158-165
Author(s):  
Skordialos Emmanouil ◽  
Baralis Georgios
Keyword(s):  
Cognitive Skills ◽  
Learning Experience ◽  
Learning Difficulties ◽  
Mediated Learning ◽  
Mathematical Concepts ◽  
Self Confidence ◽  
Research Findings ◽  
Mediated Learning Experience ◽  
Teaching Fractions

AbstractThis research focuses on studying the effect of mediated learning experience in children with learning difficulties in terms of deeper understanding of mathematical concepts. The main objective of the mediation method is to improve the cognitive skills of the participants through its close mediator–children interaction. This paper analysed the term ‘knowledge’ and how it is often interpreted mistakenly by many teachers. In the survey participated 10 pupils with learning disabilities, aged 10, who attended the fifth class of primary school in Athens, Greece. Here, the action research methodology was used because the researcher took the role of mediator and worked with the students to explore the fractions. Research findings show that mathematical concepts are easier and deeper understood through practical activities and active participation of all members of the class. The mathematical abilities of children with learning difficulties and their self-confidence towards lesson have been boosted during the survey to a remarkable extent.

New Simulation System Applying Virtual Reality for AC Servo System

2016 ◽  
Vol 693 ◽  
pp. 1818-1825
Author(s):  
You Yu Liu ◽  
Jun Li ◽  
De Yuan Huang ◽  
Jie Sheng Diao ◽  
Fang Fang Dong
Keyword(s):  
Virtual Reality ◽  
Pulse Width Modulation ◽  
Servo System ◽  
Fundamental Principle ◽  
Simulation System ◽  
Virtual Reality Technology ◽  
Ac Servo System ◽  
Ac Servo ◽  
Virtual System ◽  
Sinusoidal Pulse Width Modulation

To change the empty talk phenomenon of the research of a current AC servo system, virtual reality technology is used to develop the virtual simulation system of an AC servo system. This article described the fundamental principle of the sinusoidal pulse width modulation, introduced the functional structure of the virtual system. The fundamental principle of a wave display and the treatment of the key detail problems were solved. In the end, an example of the AC servo system simulation was given. The simulation of the AC servo system can be used as a soft device instead of a real one, and provide a technology platform for the development of a new AC servo system.

Adaptive Virtual Reality Design Methodology

2021 ◽  
Vol 11 (2) ◽  
pp. 42-53
Author(s):  
Alexander Yu Tychkov ◽  
Ekaterina Grosheva ◽  
Alan K. Alimuradov ◽  
Andrey Grachev ◽  
Petr P. Churakov ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Information Transfer ◽  
Design Methodology ◽  
Integrated Analysis ◽  
Practical Application ◽  
Advantages And Disadvantages ◽  
Wireless Protocols ◽  
Post Traumatic ◽  
Virtual System ◽  
Technical Solutions

The article provides an integrated analysis of practical application of virtual reality (VR) in healthcare. Modern VR products have been created for the diagnosis and treatment of post-traumatic syndrome, Alzheimer's disease, alcohol dependence, phobic disorders, and teenage depression. Information on such products is limited to simple scenes, without adaptation to the user. The article shows a prospect for creating a virtual system with biological feedback. The proposed system is a set of portable and stationary devices for recording physiological signals and immersion into a virtual reality environment, as well as smart nodes for registration, processing, and decision-making to correct the user's mental state. Technologies for wire/wireless transfer of audio-visual and parametric information in virtual reality systems are discussed. The analyses include the features (advantages and disadvantages) of using virtual reality in conditions of optical information transfer, wireless protocols, and wire interfaces that provide user communication with virtual reality system and technical solutions.

scholarly journals Forms of generalization in students experiencing mathematical learning difficulties

2015 ◽  
Vol 9 (3) ◽  
pp. 217-243
Author(s):  
George Santi ◽  
Anna Baccaglini-Frank
Keyword(s):  
Special Needs ◽  
Educational Software ◽  
Learning Experiences ◽  
Learning Difficulties ◽  
New Paradigm ◽  
Special Needs Students ◽  
Mathematical Learning ◽  
Mathematical Learning Difficulties

We shift the view of a special needs student away from the acknowledged view, that is as a student who requires interventions to restore a currently expected functioning behaviour, introducing a new paradigm to frame special needs students’ learning of mathematics. We use the theory of objectification and the new paradigm to look at (and characterize) students’ learning experiences in mathematics as generalizing reflexive mediated activity. In particular, from this perspective, we present examples of shifts to higher levels of generalization of a student with mathematical learning difficulties working with Mak-Trace, a Logo-like educational software for the iPad.Formas de generalización en estudiantes con dificultades de aprendizaje en matemáticasEn este artículo introducimos un nuevo paradigma para enmarcar el aprendizaje de las matemáticas de alumnos con necesidades especiales. Consideramos una visión de los estudiantes con necesidades especiales diferente a la comúnmente aceptada que los considera como estudiantes que requieren intervención para reestablecer el comportamiento actualmente esperado. Utilizamos la teoría de la objetivización y ese nuevo paradigma para observar (y caracterizar) las experiencias de aprendizaje de las matemáticas entendido como actividad reflexiva y mediada de generalización. En particular, desde esta perspectiva proponemos ejemplos de acceso a niveles superiores de generalización de un estudiante con dificultades de aprendizaje de las matemáticas que utiliza Mak-Trace, un software didáctico para iPad parecido a Logo.Handle: http://hdl.handle.net/10481/34993WOS-ESCINº de citas en WOS (2017): 1 (Citas de 2º orden, 1)

scholarly journals THE DIFFICULTIES OF FIFTH GRADE STUDENTS IN SOLVING MATHEMATIC FRACTIONS WORD PROBLEMS

2019 ◽  
Vol 3 (2) ◽  
pp. 152 ◽  
Author(s):  
May Nisa Istiqomah ◽  
Sufyani Prabawanto
Keyword(s):  
Qualitative Research ◽  
Elementary Schools ◽  
Word Problem ◽  
Word Problems ◽  
Language Skills ◽  
Learning Difficulties ◽  
Fifth Grade ◽  
Fifth Grade Students ◽  
Teaching Fractions ◽  
Research Show

Mathematics is often become the frightening subjects for students. Mathematics is considered as something which is difficult to solve. One of the elementary schools mathematics materials which is considered difficult is fractions. Not only students who consider fractions as difficult material but also teachers admit it as well. Teachers feel difficult in teaching fractions to students. Basic concept of fractions which is difficult for the student to grasp, would become even more complex if it is delivered in the form of word problem. In solving word problems students do not only need mathematic skills but also language skills. This research is aimed to analyze students learning difficulties in solving fractions word problem. This research is a qualitative research. The method of analysis used in this research is Newman method. The results of the research show that students faced difficulties in solving fractions word problems because (1) it is difficult for the students to understand the question and to translate it into mathematical sentence, (2) it is difficult for the students to determine the operation used in the word problems, (3) students are not accustomed to, thus they forget to write the conclusion/write the conclusion without the unit in every answers.

scholarly journals A abordagem dos recursos no processo de ensino do conceito de derivada

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
DANILO DOS SANTOS CHRISTO ◽  
SONIA BARBOSA CAMARGO IGLIORI
Keyword(s):  
Mathematics Education ◽  
Collective Action ◽  
Literature Review ◽  
Undergraduate Students ◽  
Teaching And Learning ◽  
Learning Difficulties ◽  
Mathematical Concept ◽  
Documentational Approach ◽  
Research In Mathematics Education

ResumoNeste artigo apresentamos ideias preliminares de nossa tese de doutorado e elementos de um novo campo de pesquisa em educação matemática: The ‘Resources’ Approach to Mathematics Education (RAME) – A Abordagem dos “Recursos” para a Educação Matemática (TROUCHE, GUEUDET E PEPIN, 2019). A Abordagem Documental do Didático (GUEUDET e TROUCHE, 2010) desempenha um papel particular neste novo campo. Na revisão da literatura verificamos que o conceito de derivada, inserido em um campo conceitual (VERGNAUD, 1990), apresenta dificuldade de aprendizagem para os estudantes, sendo que esses se saem melhores no uso da técnica do que no entendimento e atribuição de significado a esse conceito matemático. A proposta da pesquisa é de efetivar um estudo de caso com estudantes de Licenciatura em Matemática de uma universidade brasileira, desenvolvendo uma ação coletiva entre pesquisador e professor na concepção de recursos para o processo de ensino e aprendizagem do conceito de derivada no Ensino Superior. Palavras-chave: Abordagem dos Recursos; Abordagem Documental do Didático; Conceito de Derivada; Campo Conceitual; Estudo de Caso.AbstractIn this article we present preliminary ideas for our doctoral thesis and elements of a new field of research in mathematics education: The ‘Resources’ Approach to Mathematics Education - RAME - (TROUCHE, GUEUDET & PEPIN, 2019). The Documentational Approach to Didacts (GUEUDET & TROUCHE, 2010) has a particular role in this new field. In the literature review, we found that the concept of derivative, inserted in a conceptual field (VERGNAUD, 1990), presents learning difficulties for students, because they do better in the use of the technique than in the understanding and attribution of meaning to this mathematical concept. The research proposal is to carry out a case study with Mathematics undergraduate students from a brazilian university, developing a collective action between researcher and professor in the conception of resources for the process of teaching and learning the concept of derivative in Higher Education.Keywords: Resource Approach; Documentational Approach to Didacts; Concept of Derivative; Conceptual Field; Case Study.   

Error Measurement and Calibration in Developing Virtual-Reality-Assisted Microassembly System

2015 ◽  
Vol 9 (6) ◽  
pp. 619-628 ◽  
Author(s):  
Ren-Jung Chang ◽  
◽  
Jia-Cheng Jau
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
System Development ◽  
Calibration Method ◽  
Development Stage ◽  
Deviation Angle ◽  
Charge Coupled Device ◽  
Virtual System ◽  
Representative Points ◽  
Operational Error

The operational error of a virtual reality (VR) assisted vision-based microassembly system is measured and calibrated during the system development stage. The vision-based microassembly system was designed and its opto-mechanical model was established in a virtual environment. By measuring the errors between the representative points in the images of virtual cameras and charge-coupled device (CCD) visual systems, the errors in the virtual environment were compensated by correcting the projection matrix parameters, the view matrix parameters, the initial components position, and the deviation angle for the working stage motion. The effectiveness of the proposed VR-assisted fine calibration method was tested by performing VR calibration on the virtual system.

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