12 research outputs found
STUDI META-ANALISIS: EFEKTIVITAS PENDEKATAN REALISTIC MATHEMATICS EDUCATION DALAM PENALARAN DAN PEMECAHAN MASALAH MATEMATIS SISWA
No full textAbstrak. Sampai saat ini telah banyak studi mengenai pentingnya kemampuan penalaran dan kemampuan pemecahan masalah dengan Pendekatan Realistic Mathematics Education (RME). Namun, studi-studi sebelumnya belum mengkaji pengaruh secara komprehensif. Studi meta-analisis ini bertujuan untuk mengetahui besar ukuran efek yang terjadi apabila Pendekatan Realistic Mathematics Education diterapkan mampu meningkatkan PL dan PM matematis siswa, dan menganalisis karakteristik studi. Studi bersumber dari mesin pencarian Google Scholar, Semantic Scholar, Education Resources Information Center (ERIC), dan Directory of Open Access Journal (DOAJ) dari Januari 2010 hingga Juni 2022 diperoleh 83 ukuran efek terdiri dari 25 ukuran efek PL dan 58 ukuran efek PM matematis siswa. Untuk meningkatkan presisi dalam perhitungan data, digunakan perangkat Comprehensive Meta-analysis (CMA) Ver. 3.0. Ukuran efek ini berdasarkan pada persamaan hedges dengan tingkat kepercayaan sebesar 95%. Menggunakan model efek acak diperoleh informasi ukuran efek pada PL matematis siswa dengan kategori tinggi dan ukuran efek pada PM matematis siswa dengan kategori sangat tinggi. Terdapat tiga kajian karakteristik pada studi ini yang terdiri dari jenjang pendidikan, ukuran sampel dan berbantuan teknologi atau tidak. Berdasarkan karakteristik tersebut, hasil studi menunjukkan bahwa Pendekatan RME lebih efektif meningkatkan PL diterapkan pada jenjang SD, jumlah siswa dalam satu kelas terdiri dari > 32 siswa, dan dengan berbantuan teknologi. Hal ini hampir sama pada penerapan Pendekatan RME yang mampu secara efektif meningkatkan PM, dengan jumlah siswa dalam satu kelas terdiri ≤ 32 siswa. Temuan ini memberikan informasi kepada para pendidik bahwa berdasarkan hasil meta-analisis menunjukkan bahwa Pendekatan RME lebih efektif meningkatkan PL dan PM pada jenjang SD dibandingkan pada jenjang lainnya.
Kata Kunci: Realistic Mathematics Education, Kemampuan Penalaran Matematis, Kemampuan Pemecahan Masalah, Meta-analisis.
Abstract. There have been many studies regarding the importance of reasoning and problem-solving skills with the Realistic Mathematics Education (RME) approach. However, previous studies have not comprehensively examined the effect. This meta-analysis study aims to determine the effect size if the RME is applied to enhance students' MRA and MPS and analyze the characteristics of the study. The sources of this research come from Google Scholar, Semantic Scholar, Education Resources Information Center (ERIC), and Directory of Open Access Journal (DOAJ) from January 2010 to June 2022 obtained 83 effect sizes consisting of 25 MR effect sizes and 58 MPS effect sizes. To increase the precision measurement, this study uses the Comprehensive Meta-analysis (CMA) Ver 3.0. Based on the Hedges equation, the effect size is a 95% confidence level. The effect size of students' MRA in the high category and the effect size of students' MPS in the very high category was determined using a random effect model. There are three characteristics in this study namely level of education, sample size, and technology-assisted. Based on the characteristics, the result of the study shows that the RME is more effective in increasing MRA at the elementary level. The number of students in one class is greater than 32 by using assisted technology. This is similar to enhancing students’ MPS effectively with the number of students less than or equal to 32 in one class. These findings inform educators that the implementation of the RME is more effective in elementary schools than in others.
Keywords: Mathematical Reasoning, Meta-analysis, Problem-solving, Realistic Mathematics Educatio
REALISTIC MATHEMATIC EDUCATION ON HIGHER-ORDER THINKING SKILL MATHEMATICS OF STUDENTS
No full textThe literature on the effect of the Realistic Mathematics Education (RME) approach on high-order thinking skills (HOTS) students is massive. There is a diversity of research results. So a systematic and comprehensive review is needed to justify and describe its effect, which includes problem-solving, critical, creative, and reasoning abilities. This research used a systematic literature review (SLR) technique to search the Semantic Scholar, ERIC, Google Scholar database, and direct URLs from 2013 to 2022, yielding 49 studies that matched the inclusion criteria. Every paper was recorded and then categorized for analysis based on the title, education level, year of publication, sample size, and kind of HOTS. The findings indicated that RME positively impacted students' HOTS when learning activities were applied with student-centered, contextual problems, and the teacher was the facilitator. Working together in small groups allowed students to carry out individual exploration activities, reconstruct concepts from their own experiences, and connect these concepts to the mathematical ideas studied. RME thus becomes appropriate for use in achieving learning's aims and urgency, particularly in raising students' mathematical HOTS. The study's findings also offer information on the trends and heterogeneity of research into applying RME on mathematical HOTS in Indonesia. It is thus anticipated that it will serve as a recommendation and a focus for further study
KEMAMPUAN PENALARAN MATEMATIS: SYSTEMATIC LITERATURE REVIEW
No full textMathematical reasoning ability is one of the important learning objectives of mathematics to be achieved by students at school. This study aims to analyze qualitative studies on mathematical reasoning abilities conducted in the period 2015-2021. The method used is a Systematic Literature Review (SLR) on all qualitative research articles indexed in Google Scholar, Semantic, and ERIC. The search strategy was adapted to the selection criteria and used the PRISMA protocol as a guide for the research instrument. The variables involved in this study are the year of publication, education level, research class, demographics, journal indexer, material analyzed, and type of reasoning ability used. All data obtained are presented in a quantitative descriptive. The results of the SLR research show that studies related to students' mathematical reasoning abilities are widely published in 2020 and 2021. The majority of these studies are carried out at the junior high school level in grade VIII. The study was also dominated in Java & Bali on geometry and algebra materials. Suggestions for future educators or researchers to do more research on mathematical reasoning skills from the elementary school level, in areas outside Java & Bali, on materials other than algebra and geometry as well as research-related aspects of proof
PENGARUH PENDEKATAN REALISTIC MATHEMATICS EDUCATION TERHADAP PENALARAN MATEMATIS: SYSTEMATIC LITERATUR REVIEW
No full textThe purpose of this study was to determine whether the Realistic Mathematics Education Approach had an effect on students' mathematical reasoning abilities. The method used in this research is Systematic Literature Review. The search strategy was adapted to the selection criteria and used the PRISMA protocol as a guide for the research instrument. The data analysis technique used is data grouping, data analysis and data inference. The results of the study show: (1) There is an effect of the Realistic Mathematics Education (RME) Approach on students' reasoning abilities. (2) The Realistic Mathematics Education approach is an alternative solution for teachers to develop students' reasoning abilities. (3) Technologies that can be used in learning mathematics to improve reasoning abilities are Geogrebra, Computer Game (Snake and Ladder), and Powerpoint. (4) There is heterogeneity in research on the effect of Realistic Mathematics Education Approach on students' reasoning abilities, for example, year of publication, level of education, sample size, status of technology assistance and materials used in research
The Effect of Realistic Mathematics Education in Enhancing Indonesian Students' Mathematical Reasoning Ability: A Meta-Analysis
No full textMany researchers have carried out meta-analysis studies related to realistic mathematics education (RME) to enhance mathematical ability. However, their research does not focus on mathematical reasoning ability (MRA). This study aims to estimate and examine the effect of RME implementation in enhancing the MRA of Indonesian students, as well as to explore the moderating factors that influence students' heterogeneous MRA. The meta-analysis examined twenty-five relevant primary research published in national and international journals and sessions between 2010 and 2022. The steps of this research are formulate the problem, inclusion criteria, literature search strategy, study selection, data extraction, statistics analysis, interpretation and reporting. To calculate the effect size, the analytical tool employed the Comprehensive Meta-Analysis (CMA) program using the Hedge formula. Based on the random effect model, the total RME implementation had a very high effect (g = 1,064; p<0,05), significantly enhancing the MRA of Indonesian students. Furthermore, class capacity, educational level, and technological assistance did not influence students' heterogeneous MRA in the RME. These findings imply that Indonesian math educators should consider RME as one of the best ways to implement mathematics learning in the classroom to enhance students' MRA.
Trends in Studies on Islamic Education Pedagogy: A Bibliometric Analysis with Implications for Character Education
No full textPurpose – Despite the increasing significance of character education within the context of Islamic education, there is a discernible gap in scholarly discussions on this subject. This study aims to address this void by offering a bibliometric and bibliographical review concerning character education via Islamic pedagogy.
Design/methods/approach – Employing a bibliometric analysis approach, this research scrutinized 117 documents extracted from the Scopus database, spanning 2007 to 2023. The analytical tools employed include performance, co-citation, co-word, and co-authorship metrics, facilitated through VOSviewer and PoP software.
Findings – The investigation highlighted a moderate uptick in publications about Islamic education from 2007 to 2023. However, citation trends within Islamic education studies fluctuated between 2007 and 2023. This review also identified the pivotal documents, nations, authors, sources, and affiliations that have substantially impacted the growth trajectory of Islamic education research.
Research implications – The insights derived from this study underscore the potential of Islamic education in fostering positive attitudinal shifts in students. As character education strives to mold virtuous habits, Islamic education serves as a conduit by instilling Islamic values, thereby facilitating the cultivation of commendable character traits by rectifying detrimental behaviors and mindsets
Consumer Product Life Cycle Assessment Aveeno® Daily Moisturizing Lotion
No full textabstract: This paper researches an attributional life-cycle assessment (ALCA) of a commonly used consumer product, specifically one bottle of 8-ounce Aveeno Daily Moisturizing Lotion. This LCA analyzed the impacts associated from cradle-to-grave processes of one bottle of Aveeno Daily Moisturizing lotion, including raw material extraction, raw material processing, manufacturing, packaging, distribution, use and end-of-life of both the lotion itself as well as the bottle. To successfully propose end-of-life management techniques, three different disposal options were analyzed: landfill disposal, incineration and recycling. All processes included in the system boundary were compared across three main midpoint impact categories: Fossil depletion, Freshwater depletion and Global Warming Potential. Results showed that transportation of the product outweighed all other processes in regard to the three impact categories. When all processes but transportation were considered, results showed that raw material extraction and processing was the significant contributor to the three impact categories. This LCA therefore proposes that Aveeno take advantage of local products to limit the need for excessive transportation. Furthermore, sustainable forms of transportation could be used to offset the product’s overall environmental impacts. In regard to end-of-life disposal options, Aveeno could market recycling techniques to push forth the reuse of their plastic bottle. Considering costs, glass bottle use could also be considered to possibly implement a send-back and reuse option for consumers
Mathematical Computational Thinking : Systematic Literature Review
No full textOne of the key math learning goals that students at school must attain is mathematical computational thinking. This research attempts to review research on mathematical computation thinking done between 2018 and 2023. A systematic review of the literature (SLR) was conducted on all papers listed in Google Scholar, Semantic, and ERIC. The PRISMA protocol served as a guide for the research instrument while the search technique was modified to the selection criteria. The year of publication, education level, research class, demographics, journal indexer, and content studied are the variables in this study. The presentation of all data is quantitative descriptive. The findings of the SLR investigation indicate that in 2022 there will be a large publication of papers about students' mathematical computational thinking. The majority of these studies are conducted in grades VIII and IX in junior high schools. The study of numbers and algebraic concepts was very prevalent in Java and Bali. Future educators and researchers are advised to conduct additional research on computational thinking in mathematics starting at the elementary school level, outside of Java and Bali, on subjects other than algebra and numbers as well as research-related computational thinking indicators
Behavioral and hormonal measures of hunger, satiety, and energy intake to predict weight-loss response to Liraglutide
No full textWeight loss for treating obesity requires a sustained negative energy balance. Various pharmacological agents facilitate weight loss by helping reduce energy intake. Pharmacotherapy for obesity has limitations, and efficacy and safety profiles of obesity drugs vary. Therefore, predicting responders to drug treatment early on can avoid undue exposure of potential non-responders to drug side effects. This study was conducted to predict weight-loss response to anti-obesity drug liraglutide, an FDA-approved glucagon-like peptide-1 (GLP-1) receptor agonist that helps reduce food intake and promote weight loss. It is expected that subjective (visual analog scale [VAS] ratings) and objective (ad libitum intake and hunger and satiety hormones) measures of energy intake, hunger, and satiety work in consort with food cue reactivity in the brain to influence food intake, which in turn impacts weight and objective measures of energy intake, hunger, and satiety in response to liraglutide would predict weight loss and that responders to liraglutide (defined by at least 4% weight loss at 16 weeks) have stronger interplay between measures of hunger and satiety. This would strongly reduce food intake and, in turn, may induce greater weight loss. To test this, analysis of the interaction between measures of hunger and satiety with FCR in the brain and weight loss are needed. This study focused on the relationship between gut hormones, subjective measures of hunger and satiety, and food intake and weight loss. We tested this in a 16-week randomized, double-blind, placebo-controlled trial. Subjects with obesity (age 18-60 years; body mass index 30-50 kg/m2) were recruited via advertisement. Sixty-three individuals initiated the study. An initial 4-week dose escalation phase for liraglutide (or placebo) was followed by 12 weeks of maintenance of the therapeutic dose (3.0 mg). At baseline, week 4, and week 16, subjects attended testing sessions for functional magnetic resonance imaging-food cue reactivity (fMRI-FCR) scans. During the visit, they were offered a standardized breakfast and responded to VAS, provided blood samples for measuring hormone levels and other parameters at several timepoints and after an ad libitum lunch. Changes in body weight, hormonal (ghrelin, PYY, and GLP-1) response to food intake, and behavioral (ad libitum food intake and self-reported hunger/satiety assessed with VAS) responses from baseline to week 4 and baseline to week 16 were analyzed (while blinded to group allocation) using R statistical software and intention-to-treat with multiple imputation to handle missingness. Comparisons were performed using linear models (continuous outcomes) or logistic regression (binary outcomes), with analyses within imputations pooled into a single, final analysis using Rubin’s Rules.
Sixty-three subjects were included in the intention-to-treat analysis. After 16 weeks, mean weight loss in the placebo group (n=30) was 3.1±5.9% (mean ± SEM) and -10.2±3.8% in the liraglutide group (n=33; p=0.326). Placebo or liraglutide group did not differ significantly in changes in area-under-the-curve (AUC) and area-under-the-curve correcting for the baseline value (cAUC) in VAS in baseline to week 4 and baseline to week 16 changes. Baseline to week 4 change in VAS, ad libitum lunch intake, and PYY, GLP-1, and ghrelin did not predict percent weight loss or responder status (at least 4% weight loss) at 16 weeks in the liraglutide group (all p>0.05). Sex (p=0.399), age (p=0.205), and initial BMI (from baseline scan visit; p=0.421) did not predict liraglutide responder status at 16 weeks. Liraglutide responders did not have significantly different baseline PYY, GLP-1, and ghrelin AUCs or cAUCs than non-responders (all p>0.05). There were no significant differences between responders and non-responders for baseline to week 4 and baseline to week 16 changes in PYY, GLP-1, and ghrelin (all p>0.05). We did not observe a statistically significant difference between placebo and liraglutide groups for measures of hunger and satiety, energy intake, and weight loss in this trial of 63 participants. This is expected because sample size calculations were based on observing FCR for those exposed to liraglutide and placebo and not for detecting differences in weight loss or weight-loss related subjective and objective measures of hunger and satiety between groups. The next phase of analyses will determine if FCR is linked to measures of hunger and satiety, energy intake, and weight-loss response. This collective interaction would be crucial for testing study hypotheses and for early prediction of responders to liraglutide treatment.Embargo status: Restricted until 09/2172. To request the author grant access, click on the PDF link to the left
U-Pb and Hf isotopic analyses of detrital zircons from the Taku terrane, southeast Alaska
No full textThe Taku terrane consists of metamorphosed Carboniferous through Triassic marine clastic strata, volcanic rocks, and limestone which occur along the western margin of the Coast Mountains in southeastern (SE) Alaska. These rocks are juxtaposed along mid-Cretaceous thrust faults over Jura-Cretaceous basinal strata of the Gravina belt to the west and beneath Proterozoic through Carboniferous metamorphic rocks of the Yukon-Tanana terrane to the east. This paper presents U-Pb ages and Hf isotope analyses of detrital zircons from the Taku terrane, and compares these values with information from the adjacent Wrangellia, Alexander, and northern and southern portions of the Yukon-Tanana terrane (YTTn and YTTs). These comparisons suggest that: (1) Carboniferous strata of the Taku terrane were shed mainly from mid-Paleozoic igneous rocks of YTTs; (2) Permian strata of the Taku terrane were shed from mid-Paleozoic igneous rocks and intraformational Lower Permian volcanic rocks of YTTs as well as Upper Permian volcanic rocks exposed in YTTn; and (3) Triassic sandstones were shed from mid-Paleozoic igneous rocks of YTTs, whereas conglomerates were shed mainly from mid-Paleozoic arc rocks in YTTn. Hf isotope analyses of Paleozoic zircons record increasing continental input during Silurian-Devonian and Permian phases of magmatism. Similarities in isotopic characteristics, combined with stratigraphic and geochemical information presented by previous workers, suggest that strata of the Taku terrane accumulated on (and partly as lateral equivalents of) rocks of YTTs, and that the combined assemblages formed outboard or along strike of YTTn.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
