scholarly journals The Concept of an Adaptive Trainer and Assessing Its Effectiveness in a Mathematical Application

2021 ◽  
Vol 11 (4) ◽  
pp. 5-20
Author(s):  
L.S. Kuravsky ◽  
D.A. Pominov ◽  
G.A. Yuryev ◽  
N.E. Yuryeva ◽  
M.A. Safronova ◽  
...  

Presented is a mathematical model of the self-learning adaptive trainer intended for adaptive learning and providing task selection. The approach in question is an alternative to the adaptive technologies based on the Item Response Theory. Possibility to take into account temporal dynamics of solution ability as well as smaller number of tasks that must be performed by a subject to provide the given results are among the features of the methods in use. To assess the effectiveness of the adaptive trainer concept under consideration, its web-implementation intended for training school students to solve mathematical tasks covered by the school curriculum was employed. The analysis performed revealed both high efficiency of the adaptive trainer (the mean test rating has increased 1.54 times owing to its use) and proven statistically significant influences of the adaptive training factor on the observed mathematical test results.

2013 ◽  
Vol 30 (1) ◽  
Author(s):  
Sher Zaman

goal of an educational system. However, a perception exists in Pakistan that the given first two components, i.e., information and skills, are more focused in school curriculum and instruction but morals among students are informally addressed during class teaching. Such schooling of the learners does not meet the socio-moral needs of a developing society. Resultantly there occurs a societal moral decline that Pakistani society is facing now a day. The current study has, therefore, been conducted to determine role of the given moral instructional contents in fostering moral reasoning and judgment (determining the moral justification of an action) among the secondary school students, to address the issue related research question, as whether students’ moral knowledge accounts for variations in their moral reasoning. The research data for this correlational study was collected on two variables i.e. moral knowledge and moral reasoning of the students. For the purpose, researcher developed two instruments and used for measuring the variables involved in the present research. An achievement test was developed to measure moral knowledge of the secondary school students while, a test based on moral dilemmas was constructed to assess their moral reasoning. Psychometric properties of both the tests, for validity and reliability purpose, were ensured through expert judgments. Further improvement in tests was made on the basis of students’ responses that were taken in piloting of the instruments. A sample of 600 students of the grade 9 with their age range 14-16 years participated in the study. The correlation coefficient=0.204**, n=595, p<0.05 indicates that there was small correlation between students’ moral knowledge and their moral reasoning levels.


2020 ◽  
Vol 36 (4) ◽  
pp. 554-562
Author(s):  
Alica Thissen ◽  
Frank M. Spinath ◽  
Nicolas Becker

Abstract. The cube construction task represents a novel format in the assessment of spatial ability through mental cube rotation tasks. Instead of selecting the correct answer from several response options, respondents construct their own response in a computerized test environment, leading to a higher demand for spatial ability. In the present study with a sample of 146 German high-school students, we tested an approach to manipulate the item difficulties in order to create items with a greater difficulty range. Furthermore, we compared the cube task in a distractor-free and a distractor-based version while the item stems were held identical. The average item difficulty of the distractor-free format was significantly higher than in the distractor-based format ( M = 0.27 vs. M = 0.46) and the distractor-free format showed a broader range of item difficulties (.02 ≤  pi ≤ .95 vs. .37 ≤  pi ≤ .63). The analyses of the test results also showed that the distractor-free format had a significantly higher correlation with a broad intelligence test ( r = .57 vs. r = .17). Reasons for the higher convergent validity of the distractor-free format (prevention of response elimination strategies and the broader range of item difficulties) and further research possibilities are discussed.


2020 ◽  
Vol 4 (2) ◽  
pp. 174
Author(s):  
Meida Rachmawati ◽  
Suzana Widjajanti ◽  
Ahmad Ahmad ◽  
Aslan Aslan

This article aimed to promote English in elementary school students through a fun learning method, called the Fun English Camp. Several studies had been conducted to encounter the best solution to handle this issue. The researchers used PRISMA Protocol as an instrument to collect the data that has been widely used in the process of selecting relevant articles. The researchers reviewed twenty five scientific publications, related to Fun English Camp that has become an English learning approach for beginner students. Through a review of twenty five scientific publications, for instance book and journal, the researchers got scientific evidence that introduction of a learning method with the term Fun English camp has an impact on promoting language learning for elementary school children in Indonesia. Thus, the fun English camp method can be an interesting method to be applied by elementary school curriculum design in Indonesia. Keywords: English Camps, Learning Method, Fun English Learning


2021 ◽  
Vol 11 (6) ◽  
pp. 784
Author(s):  
Govindasamy Balasekaran ◽  
Ahmad Arif Bin Ibrahim ◽  
Ng Yew Cheo ◽  
Phua Kia Wang ◽  
Garry Kuan ◽  
...  

The purpose of this study was to investigate the effects of classroom-based Brain Breaks® Physical Activity Solution in Southeast Asia Singaporean primary school students and their attitude towards physical activity (PA) over a ten-week intervention. A total of 113 participants (8–11 years old) were randomly assigned to either an experimental (EG) or a control group (CG), with six classes to each group; the Brain Breaks® group (EG: six classes) and the Control group (CG: six classes). All EG members participated in a Brain Breaks® video intervention (three–five min) during academic classes and the CG continued their lessons as per normal. The student’s attitudes towards PA in both research conditions were evaluated using the self–reported Attitudes toward Physical Activity Scale (APAS), applied before and after intervention. The effects of the intervention on APAS scores were analysed using a mixed model analysis of variance with Time as within-subject and Group as between-subject factors. The analysis revealed evidence in support of the positive effect of classroom video interventions such as Brain Breaks® on student’s attitudes toward benefits, importance, learning, self-efficacy, fun, fitness, and trying to do their personal best in PA. The Brain Breaks® intervention provided a positive significant impact on students in Singapore. This study also revealed that interactive technology tools implemented into the school curriculum benefit students in terms of health and education.


2020 ◽  
Vol 12 (22) ◽  
pp. 3736
Author(s):  
Gennadiy Emel’yantsev ◽  
Oleg Stepanov ◽  
Aleksey Stepanov ◽  
Boris Blazhnov ◽  
Elena Dranitsyna ◽  
...  

The paper presents the developed integrated GNSS/IMU gyrocompass which, unlike the existing systems, contains a single-axis rotating platform with two antennas installed on it and an inertial measurement unit with tactical grade fiber-optic gyros. It is shown that the proposed design provides attitude solution by observing the signals of only one navigation satellite. The structure of the integrated GNSS/IMU gyrocompass, its specific features and prototype model used in the tests are described. The given test results in urban conditions confirmed heading determination accurate to ±1.5° (3σ).


2021 ◽  
pp. 21-24
Author(s):  
Neha Sharma ◽  
Ayush Anand ◽  
Shreyas Joshi ◽  
Samrat Ray

BACKGROUND: India, with the declaration of COVID-19 as a pandemic, started imposing restrictions in the country th and initiated a nationwide lockdown under Section 6 of the Disaster Management Act, 2005 on 24 March 2020, followed by four phases of lockdown and then gradual unlock of the country. The rationale behind the same was to avoid social contact. Alcohol dispensing was also stopped during this time and was among the rst services to be reopened by the States. We propose in this paper that this lifting of ban on alcohol sale during the pandemic has led to a signicant increase in the number of COVID-19 cases in the country. METHODS: This is a prospective, observational study, done by collecting data from the Aargya Setu App, which is a mobile application launched by the Ministry of Health and Family Welfare on 2 April 2020 for contact tracing and elf assessment of COVID-19. The data of cumulative number of cases in 12 selected states of the country were compared before and after the lift of ban of alcohol and signicance was shown by the paired t test. RESULTS: The number of COVID-19 positive cases in the country during nationwide lockdown with simultaneous ban on alcohol sale when compared to cumulative number of cases after the lift of ban of alcohol sale during Lockdown and initial Unlock is statistically signicant (p = 0.04) CONCLUSION: We found that the decision to restart the sale of Alcohol could have been a factor for rise in number of cases in the country in the given timeframe. The decision to start the sale has also not been in accordance with the Indian Constitution and against the nation's founding ethics.


2021 ◽  
Vol 23 (8) ◽  
pp. 102-138
Author(s):  
Clarissa De Assis Olgin ◽  
Claudia Lisete Oliveira Groenwald ◽  
Carmen Teresa Kaiber

Background: Developing autonomy, the ability to solve problem situations, make decisions and act for the benefit of your social environment are modern life skills and can be developed in the school environment, along with mathematical content, and can be viable through the methodology of project projects, using active methodologies and the resources of digital technologies. Objectives: Discuss the Mathematics Curriculum or the work projects as a pedagogical proposition based on the development of three projects with the thematic Cryptography, Music, and Project launching applicable to the High School. Design: Qualitative research that sought to investigate work with projects in High School was used. Setting and Participants: Experiments developed with two classes of high school students in the Rio Grande do Sul state. Data collection and analysis: Data collection took place during the development of the project stages through students' written records and questionnaires. Results: It is considered that the Work Projects developed constituted a possibility to modify the role of the student and the teacher, allowing students to become active, participative, and committed to the development of their knowledge. Conclusions: It is understood that students, their learning and development must be the focus of the educational process. Therefore, the school curriculum must enable students to assume the role and responsibility for their learning.


Author(s):  
Pifu Zhang ◽  
Caiming Zhang ◽  
Fuhua (Frank) Cheng

Abstract A method to scale and deform a trimmed NURBS surface while holding the shape and size of specific features (trimming curves) unchanged is presented. The new surface is formed by scaling the given surface according to the scaling requirement first; and then attaching the (original) features to the scaled NURBS surface at appropriate locations. The attaching process requires several geometric operations and constrained free-form surface deformation. The resulting surface has the same features as the original surface and same boundary curves as the scaled surface while reflecting the shape and curvature distribution of the scaled surface. This is achieved by minimizing a shape-preserving objective function which covers all the factors in the deformation process such as bending, stretching and spring effects. The resulting surface maintains a NURBS representation and, hence, is compatible with most of the current data-exchange standards. Test results on several car parts with trimming curves are included. The, quality of the resulting surfaces is examined using the highlight line model.


Lipar ◽  
2020 ◽  
Vol XXI (73) ◽  
pp. 203-216
Author(s):  
Jovana Milovanović ◽  

This article discusses reception and production of academic vocabulary among native speakers of Serbian language. Academic vocabulary is one of the key elements of academic language competence, and a modest lexicon and underdeveloped academic language competence can cause problems in both comprehension and production. In this research, we used a vocabulary test consisting of 12 items taken from general culture entrance exams used at the Faculty of Philosophy, University of Belgrade. The participants are BA students of French language at the Faculty of Philology, University of Belgrade, years 1-4. The participants were instructed to provide a synonym or a definition for each item, as well as a sentence containing the given word. The aim of this research is to highlight issues in comprehension of academic vocabulary and establish the influence of factors such as word etymology or university level on the success of the participants. We analysed the results and classified them in three categories: correct, incorrect and unanswered. The majority of participants successfully identified just half of the given words (in order of success: poliglota 95,76%, bestseler 92,37%, pacifista 66,10%, suveren 58,47%, prototip 57,63%, elokventan 56,78%). The success level for the other half of the items from the test was below 50% (in order of success: erudita 49,15%, hipokrizija 39,83%, nepotizam 22,03%, skrupulozan 18,64%, šprahfeler 10,17%, eksproprijacija 8,47%). The influence of etymology was analysed through a comparison of the results for six items of French/Latin origin with the results for the other six items which did not originate from Romance languages. This analysis shows that the participants had similar results in both groups of items, with three words from each group having above 50% of correct answers (suveren, elokventan, pacifista; poliglota, bestseler, prototip). Lastly, we examined success levels from year 1, year 2, year 3 and year 4 students and determined that the median of correct answers for each year does vary, but that there is no strong linear progression (median year 1=5, year 2=6, year 3=7, year 4=6). The results indicate a lack of knowledge of academic vocabulary and difficulties in identifying and manipulating this type of lexis. We believe it is necessary to integrate academic language skills, including academic vocabulary, in high school curriculum and introduce Serbian language as a subject at university level.


Author(s):  
А.М. САЖНЕВ ◽  
Л.Г. РОГУЛИНА

Приводятся результаты моделирования сверхскоростного буфера тактовых сигналов, выполненного на базе арсенид-галлиевых n-канальных транзисторов в среде OrCAD и полностью отвечающего следующим требованиям: высокие технические характеристики, малые размеры, высокая частота и КПД, гибкость применения. Приведенные поведенческие модели допускают использование любой программной среды по схемотехническому моделированию. The results of simulation of an ultra-high-speed clock signal buffer based on gallium arsenide n-channel transistors in OrCAD are presented, which fully meets the following requirements: high technical characteristics, application flexibility, low cost, small size, high frequency, and high efficiency. The given behavioral models allow the use of any software environment for circuit modeling.


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