Academic literature on the topic 'Decimal Use studies'
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Journal articles on the topic "Decimal Use studies"
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Pereira, Fernando Francisco, Iara Souza Doneze, and Luciano Tadeu Esteves Pansanato. "NÚMEROS INTEIROS E DECIMAIS: UMA ABORDAGEM DOS CONTEÚDOS DE MATEMÁTICA POR MEIO DE UM JOGO FRENTE ÀS DIFICULDADES DO CENÁRIO TECNOLÓGICO DA EDUCAÇÃO BÁSICA." Revista Prática Docente 3, no. 2 (December 26, 2018): 386–405. http://dx.doi.org/10.23926/rpd.2526-2149.2018.v3.n2.p386-405.id231.
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Resumo: Com a intencionalidade de contribuir para pesquisas em Educação Matemática, ao delimitar o campo de estudos aos Números Inteiros e Decimais, esse artigo relata os resultados de uma proposta de promoção do uso das tecnologias no ensino de Matemática, que objetivou auxiliar os alunos na compreensão dos conteúdos de Números Inteiros – Decimais e suas operações. A proposta consistiu na adaptação e aplicação de um jogo de trilhas em formato digital, que utilizou o software Excel. Os participantes foram alunos entre 11 e 13 anos de idade, de uma escola pública do Paraná. Desse modo, houve três momentos: Pré-teste, Proposta e Pós-teste, fases essas que permitiram uma visão das compreensões dos estudantes a respeito do conteúdo, anterior e posterior à sua aplicação. Ao final, conclui-se que os discentes possuem consideráveis habilidades em relação ao emprego de algoritmos da adição de números inteiros e decimais, entretanto, no emprego da operação de subtração, no mesmo contexto, apresentaram consideráveis dificuldades que foram cuidadosamente sanadas após a aplicação da proposta.Palavras-chave: Educação Matemática. Números Inteiros e Decimais. Educação Básica. Tecnologias. Abstract: Seeking to contribute to research in Mathematics Education, delimiting the field of studies to the Whole and Decimal Numbers, here is presented the results of a proposal, to promote the use of technologies in Mathematics teaching, which aimed to help students in understanding the contents of Numbers Integer - Decimals and their operations. The proposal consisted in the adaptation and application of a trail game in digital format, using Excel software. The participants were students between 11 and 13 years old, from a public school in Paraná. Happening in three moments: Pre-test, Proposal and Post-test, allowed a view of the students' understandings about the content, before and after the application of the proposal. At the end, it is concluded that the students have considerable abilities regarding the use of algorithms of the addition of integers and decimals, already in the use of the subtraction operation, in the same context, presented considerable difficulties, which were considerably remedied after the application of the proposal.Keywords: Mathematical Education. Integers and Decimal Numbers. Basic Education. Technologies.
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Sodré, Gleison De Jesus Marinho, Raquel Soares do Rêgo Ferreira, and Maria Luciana Souza Gonçalves. "Teacher Training and the use of the Abacus in the Practice of Quantifying Physical Quantities." Acta Scientiae 24, no. 3 (June 13, 2022): 153–83. http://dx.doi.org/10.17648/acta.scientiae.6876.
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Background: Several studies in mathematics education show the use of the physical abacus in the activities of teachers in initial graduation, emphasising, in their manipulation, practices with addition or subtraction operations, or yet, which express a direct translation of the numeral to the physical abacus and, vice versa, without, however, explaining part of the complexity involved the social practice of quantifying physical quantities, which even makes possible the structuring of the numeral. Objective: To show that the use of the abacus by teachers in initial training may not ensure the realisation or mastery of the practice of quantifying physical quantities with discrete units. Design: In this sense, a study and research path (SRP) was carried out based on the training of early years teachers. Environment and participants: 25 students in initial training of a degree course at a public educational institution participated in an activity on decimal number system (DNS), but largely positional number system (PNS), proposed based on a problem in an unusual context (for them), they mobilised to face and answer questions. Data collection and analysis: We present an excerpt from the empirical research forwarded by Ferreira (2020) with teachers in initial training. Results: The data observed in the empirical confirms the hypothesis of the existence of a problem regarding the use of the abacus as a possible facilitator in the structuring of non-decimal numbers through the practice of quantifying physical quantities. Conclusions: The results found with the teachers revealed, in addition to the problem of teacher training on what to teach and how to teach numerals, that using the abacus made it difficult, if not hindered, the practice of quantifying physical quantities with discrete units. We also found changes in the quality of the teachers’ relationships with structuring decimal and non-decimal numbers.
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Carraher, Terezinha Nunes, David William Carraher, and Analúcia Dias Schliemann. "Written and Oral Mathematics." Journal for Research in Mathematics Education 18, no. 2 (March 1987): 83–97. http://dx.doi.org/10.5951/jresematheduc.18.2.0083.
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Previous studies have demonstrated that children use oral calculation procedures not taught in school. The present study provided evidence for situational variables that strongly influence the tendency to use such procedures. It also provided a qualitative analysis of the oral mathematics used by Brazilian third graders. Concrete problem situations were powerful elicitors of oral computation procedures, whereas computation exercises tended to elicit school-learned computation algorithms. Oral computation procedures involved the use of two reliably identifiable routines, decomposition and repeated grouping, that revealed the children's solid understanding of the decimal system. In general, the children were far more successful in using oral mathematics than written mathematics. An understanding of children's oral procedures may be useful in developing more successful programs for elementary mathematics instruction.
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Khoo, Michael John, Jae-wook Ahn, Ceri Binding, Hilary Jane Jones, Xia Lin, Diana Massam, and Douglas Tudhope. "Augmenting Dublin Core digital library metadata with Dewey Decimal Classification." Journal of Documentation 71, no. 5 (September 14, 2015): 976–98. http://dx.doi.org/10.1108/jd-07-2014-0103.
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Purpose – The purpose of this paper is to describe a new approach to a well-known problem for digital libraries, how to search across multiple unrelated libraries with a single query. Design/methodology/approach – The approach involves creating new Dewey Decimal Classification terms and numbers from existing Dublin Core records. In total, 263,550 records were harvested from three digital libraries. Weighted key terms were extracted from the title, description and subject fields of each record. Ranked DDC classes were automatically generated from these key terms by considering DDC hierarchies via a series of filtering and aggregation stages. A mean reciprocal ranking evaluation compared a sample of 49 generated classes against DDC classes created by a trained librarian for the same records. Findings – The best results combined weighted key terms from the title, description and subject fields. Performance declines with increased specificity of DDC level. The results compare favorably with similar studies. Research limitations/implications – The metadata harvest required manual intervention and the evaluation was resource intensive. Future research will look at evaluation methodologies that take account of issues of consistency and ecological validity. Practical implications – The method does not require training data and is easily scalable. The pipeline can be customized for individual use cases, for example, recall or precision enhancing. Social implications – The approach can provide centralized access to information from multiple domains currently provided by individual digital libraries. Originality/value – The approach addresses metadata normalization in the context of web resources. The automatic classification approach accounts for matches within hierarchies, aggregating lower level matches to broader parents and thus approximates the practices of a human cataloger.
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McLaren, Bruce. "A Digital Learning Game for Mathematics that Leads to Better Learning Outcomes for Female Students: Further Evidence." European Conference on Games Based Learning 16, no. 1 (September 29, 2022): 339–48. http://dx.doi.org/10.34190/ecgbl.16.1.794.
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Stereotypes about men being better than women at mathematics appear to influence female students’ interest and performance in mathematics. Given the potential motivational benefits of digital learning games, it is possible that games could help to reduce math anxiety, increase self-efficacy, and lead to better learning outcomes for female students. We are exploring this possibility in our work with Decimal Point, a digital learning game that scaffolds practice with decimal operations for 5th and 6th grade students. In several studies with various versions of the game, involving over 800 students across multiple years, we have consistently uncovered a learning advantage for female students with the game. In our most recent investigation of this gender effect, we decided to experiment with a central feature of the game: its use of prompted self-explanation to support student learning. Prior research has suggested that female students might benefit more from self-explanation than male students. In the new study, involving 214 middle school students, we compared three versions of self-explanation in the game – menu-based, scaffolded, and focused – each presenting students with a different type of prompted self-explanation after they solved problems in the game. We found that the focused approach led to more learning across all students than the menu-based approach, a result reported in an earlier paper. In the additional results reported in this paper, we again uncovered the gender effect – female students learned more from the game than male students, regardless of the version of self-explanation – and also found a trend in which female students made fewer self-explanation errors, suggesting they may have been more deliberate and thoughtful in their self-explanations. This self-explanation finding is a possible key to further investigation into how and why we see the gender effect in Decimal Point.
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Sherzer, Laurence. "An Arithmetic Method for Converting Repeating Decimals to Fractions." Mathematics Teacher 82, no. 7 (October 1989): 574–76. http://dx.doi.org/10.5951/mt.82.7.0574.
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Students can easily use calculators to convert fra ctions to decimal numbers. But students who have studied the algebraic method of changing a repeating decimal to a fraction often find the method tedious and tend to avoid it. This difficulty raises questions about students' under standing of the nature of repeating decimal numbers. Do they know that all repeating decima ls are shown as a pproximations on the ca lculator display?
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Baumgartner, Stephan, Lucietta Betti, Peter Heusser, Tim Jäger, Claudia Scherr, Vera Majewsky, and Ursula Wolf. "Use of plant bioassays in homeopathic basic research - a systematic review." International Journal of High Dilution Research - ISSN 1982-6206 11, no. 40 (December 21, 2021): 140–41. http://dx.doi.org/10.51910/ijhdr.v11i40.571.
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Background:
Experimental research on the effects of treatments with homeopathic preparations on plants was last reviewed in 1990.
Aims:
The objective was to compile a systematic literature review on plant bioassays in homeopathic basic research using predefined criteria.
Methods:
Literature search was carried out on publications that reported experiments with homeopathic preparations on whole plants, seeds, plant parts or cells from 1920 to 2010, in healthy, abiotically or biotically stressed conditions. Outcomes had to be measured by established state-of-the-art procedures and statistically evaluated. Using a Manuscript Information Score (MIS) those publications were identified that provided sufficient information for proper interpretation (MIS > 5). Further evaluation focused on the use of adequate controls to investigate specific effects of homeopathic preparations and on the use of systematic negative control experiments to ensure proper system performance.
Results:
A total of 157 publications with plants were identified [1–3]. The 157 publications described a total of 167 experimental studies. 84 studies included statistics and 48 had a MIS > 5 allowing proper interpretation. 29 studies were identified with adequate controls to identify specific effects of homeopathic preparations, reporting significant effects of decimal and centesimal homeopathic potencies, including dilution levels beyond Avogadro’s number. Studies that tested series of consecutive potency levels reported a non-linear and discontinuous relation between effect and potency level. There were many individual studies with diverse methods and very few replication trials. 10 studies reported use of systematic negative control experiments, yielding evidence for the stability of the experimental set-up.
Conclusions:
Plant models appear to be a useful approach to investigate basic research questions on homeopathic preparations, but more independent replication trials and systematic research are needed. Systematic negative control experiments should be implemented on a routine basis to exclude false-positive and false-negative results.
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Oropesa, R. S., and Nancy S. Landale. "In Search of the New Second Generation: Alternative Strategies for Identifying Second Generation Children and Understanding Their Acquisition of English." Sociological Perspectives 40, no. 3 (September 1997): 429–55. http://dx.doi.org/10.2307/1389451.
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Social scientists are devoting increasing attention to second-generation children for insights into the long-term consequences of immigration for American society. However, there is considerable disagreement over the operational criteria that should be used to determine membership in the second generation. Using the Public Use Microdata Sample of the 1990 U.S. Census, this study examines several issues. First, the implications of different operational criteria for descriptive analyses that focus on the size and composition of the second-generation child population are considered. We then assess whether different operational strategies have implications for multivariate analyses, especially those that focus on language skills. The results indicate that a key decision for most studies, except those that focus on socioeconomic composition, is how foreign-born children are classified. Foreign-born children should not be combined with native-born children on the grounds that they comprise the “de facto” second generation. Instead, researchers should make distinctions between the “decimal” generations to avoid obscuring diversity within the child population.
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Dovbnya, Elena V. "Problems of Subject Retrieval in the Electronic Catalogue of Scientific Library: Review of Studies." Bibliotekovedenie [Russian Journal of Library Science] 69, no. 4 (November 6, 2020): 367–74. http://dx.doi.org/10.25281/0869-608x-2020-69-4-367-374.
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Scientific libraries use different approaches and tools for subject retrieval. Issues related to electronic subject retrieval are widely discussed in the library community. The purpose of this review is to analyse publications of recent years on the aspects and problems related to subject retrieval in electronic catalogue (EC). For its preparation, the author used publications (and references to them) taken from the national bibliographic database — the Russian Science Citation Index (RSCI); the time coverage is 2003—2019. Particular attention in the studies is focused on the need to combine different information retrieval languages (IRL), thesauruses, subject headings and keywords to ensure effective and multi-aspect search. Since the domestic libraries have accumulated a lot of experience in indexing and retrieval through hierarchical classifications (UDC and LBC), it is necessary to use this at the full extent in the electronic subject retrieval. The authors of the recent studies on subject retrieval consider being the most effective the functioning of classification systems as part of the complex of linguistic tools of electronic catalogue. In the electronic environment, it becomes possible to use classification indexes as a set of characters that maximally reflect the content of the document, what involves the use of all fragments of the index as independent retrieval elements. However, the lexical composition of the classification information retrieval languages needs to be modified for effective use in the electronic catalogue. The main directions here can be as follows: unification of the structure and vocabulary of classification schedules, optimization of the structure of classification systems (using facetization principles), as well as formalization of the use of grammar tools, (it is necessary to ensure the unambiguity of their interpretation in the electronic catalogue). The review presents and analyses the areas where the subject retrieval has been developed in the electronic environment for over the past 16 years. For example, there has been developed and is being implemented the superstructure over Universal Decimal Classification (Library for Natural Sciences of the Russian Academy of Sciences), which allows users of the library to remotely conduct full-fledged subject retrieval. The paper also presents the new developments by the Russian State Library on subject retrieval, in particular, the project “Presentation of classification metadata of electronic libraries using linked data technology”. The author concludes that it is necessary to form a common space of related open data of various libraries.
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Kusnaidi, Muhammad Rafli, Timotius Gulo, and Soeb Aripin. "Penerapan Normalisasi Data Dalam Mengelompokkan Data Mahasiswa Dengan Menggunakan Metode K-Means Untuk Menentukan Prioritas Bantuan Uang Kuliah Tunggal." Journal of Computer System and Informatics (JoSYC) 3, no. 4 (September 3, 2022): 330–38. http://dx.doi.org/10.47065/josyc.v3i4.2112.
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At Budi Darma University there are obstacles in providing UKT rocks where it is profitable and less targeted for students who get it. This happened because those who deserved this assistance were students who had difficulty in costs, therefore we needed a way by grouping student data based on their social level. In determining the students who deserve to get the rock, they can use the data of students who are undergoing their studies at Budi Darma University. By digging up information based on student data. So that the data can be used first, the data normalization is carried out in order to obtain more accurate data. Where student data can be grouped correctly, data normalization must be carried out. One of the normalization methods that are often used in normalizing data is the decimal scaling method which is a data transformation method with normalization to equalize the range of values on each attribute with a certain scale by moving the decimal value from data in the desired direction After the data is normalized, the next process is to explore student data information by applying data mining. The application of data mining is carried out to obtain information in the form of student data groups that are used as a priority in obtaining UKT assistance. The method used in classifying student data is using the K-Means algorithm. The manual testing method is that there are 3 clusters where the number of clusters 0 cluster 1 and cluster 3 is the same as testing data mining applications, namely rapidminer so that those who deserve to be prioritized get tuition assistance based on the sample, namely cluster / grouping 0 which consists of 22 people. This study aims to see the effect of applying data normalization in the K-Means method to classify student data which is used as a recommendation in the selection of UKT assistance.
Dissertations / Theses on the topic "Decimal Use studies"
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Gäfvert, Oscar. "Klassifikationssystemens användarvänlighet : En fenomenografisk studie av folkbibliotekariers uppfattningar." Thesis, Uppsala universitet, Institutionen för ABM, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-387897.
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The following thesis aims to account for and describe the variations of perceptions that public librarians have regarding user-friendliness of the classification systems that are used in Swedish public libraries. How user-friendliness and the classification systems are perceived are examined to understand how the librarians might connect these two together. The thesis is based on the qualitive research methodology of phenomenography which is a method used in order to create an understanding of the variations of perceptions of a phenomenon. The phenomenographic method is applied by using qualitative interviews. For this study eight public librarians in the Stockholm region have been interviewed. The interviews were conducted in a phenomenographic manner and were set out to be a dialogue between the interviewer and the interviewee. All the libraries in the study are currently working in the SAB classification system. The study shows that there are a variation of different perceptions of user-friendliness and the classification systems. One perception that is found is that SAB is not user-friendly because of the lack of logic within the system and it is a common impression that users find the system confusing. A perception also states that SAB is “a dead system”, referring to the fact that SAB no longer is updated. The perception means that in time, SAB will not be a useable system. Another perception contradicts the first one and says that SAB is a system that users usually understand to a certain degree. The users have the capability to operate within the system to find literature they seek but as they submerge deeper into the systems hierarchy most users usually get confused. Another perception is that the connection between user-friendliness and classification systems is not of importance. This perception proclaims that user-friendliness can be achieved by working with signage and shelf placement instead. The study also shows that there is a gap between how the librarians perceive the classification systems and how they imagine their users perceiving them. This is shown in the lack of dialogue between users and librarians. A common perception among the librarians is that they have what they call a “home blindness” concerning the classification systems. This statement is made referring to the fact that librarians work within these systems day by day and easily forgets to reflect on the difficulties that a first-time user might face as they try to understand the systems.
Books on the topic "Decimal Use studies"
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Markey, Karen. technology Dewey decimal classification online project: Evaluation of a library schedule and index integrated into the subjectsearching capabilities of an online catalog : final report to the Council on Library Resources. Dublin, Ohio: OCLC Online Computer Library Center, 1986.
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Markey, Karen. concise Encyclopedia of special Education: Evaluation of a library schedule and index integrated into the subject searching capabilities of an online catalog. 2nd ed. Dublin, OH: OCLC Computer Library Center, Office of Research, 1985.
Find full textBook chapters on the topic "Decimal Use studies"
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Muela, Gerardo, and Olga Kosheleva. "Why Decimal System and Binary System Are the Most Widely Used: A Possible Explanation." In Studies in Systems, Decision and Control, 153–56. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40814-5_19.
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Israel, Ubongabasi Ebenezer. "Culture of Global Terrorism." In Handbook of Research on the Impact of Culture in Conflict Prevention and Peacebuilding, 234–48. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2574-6.ch014.
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Terrorism has become one of the most recurring decimals across the globe, creating tension in every quarter. This anomaly has necessitated both state and non-state actors to engage in concerted efforts to curtail it. Hence, this study seeks to evaluate the prevalent acts of terror perpetrated by the Islamic State group across their area of jurisdiction for about a decade now. The work traces its emergence, linking it with its spread and recent plethora of activities. The research makes use of secondary sourced materials. The chapter suggests a global cultural re-orientation, especially among young people, good governance in the Middle East, commitment over terror war by stakeholders, etc. The author believes that this essay would serve as an invaluable resource to enhance scholars of conflict in the war against terror as well as serve as a stimulating factor for further studies on the issue.