bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploring of Student’s Algebraic Thinking Process Through Pattern Generalization using Similarity or Proximity Perception
Authors: Nurmawanti Iva , Sulandra I Made 
Published: November 2021

Students' algebraic thinking skills must continue to be developed because they can support success in mathematics. Algebraic thinking relates to generalizing patterns learned at the junior secondary level. During the process of generalizing students use the perception of similarity or proximity. Therefore, the purpose of this study is to describe the algebraic thinking process of junior high school students in generalizing patterns. The approach used is qualitative with 3 research subjects who have different algebraic thought processes. The results showed that junior high school students carried out algebraic thought processes by perceiving images, representing, looking for functional relationships, making generalizations, and applying general formulas. The difference in perception is used early in the activity and in the search for functional relationships. The results of this study can be used in developing mathematics learning strategies so that students' algebraic thinking skills develop.
Kemampuan berpikir aljabar siswa harus terus dikembangkan karena dapat mendukung kesuksesan dalam matematika. Berpikir aljabar generalisasi dengan generalisasi pola yang dipelajari pada tingkat SMP. Pada saat proses melakukan generalisasi siswa menggunakan persepsi similarity atau proximity. Oleh sebab itu, tujuan penelitian ini yaitu mendeskripsikan proses berpikir aljabar siswa SMP dalam melakukan generalisasi pola. Pendekatan yang digunakan yaitu kualitatif dengan 3 subjek penelitian yang memiliki proses berpikir aljabar yang berbeda. Hasil penelitian menunjukkan bahwa siswa SMP melakukan proses berpikir aljabar dengan mempersepsikan gambar, merepresentasikan, mencari hubungan fungsional, melakukan generalisasi, dan mengaplikasikan rumus umum. Perbedaannya persepsi digunakan di awal kegiatan dan pada kegiatan pencarian hubungan fungsional. Hasil penelitian ini dapat digunakan dalam mengembangkan strategi pembelajaran matematika agar kemampuan berpikir aljabar siswa berkembang.
Analisis Kesalahan Siswa SMK dalam Menyelesaikan Soal Materi Barisan dan Deret
Authors: Septiahani Asri , Melisari Melisari , Zanthy Luvy Sylviana 
Published: November 2021

AbstrakPenelitian ini memiliki latar belakang yang membahas, bahwa materi Barisan dan Deret pada siswa sangat penting untuk menentukan tentang sebuah daftar bilangan yang mengurut dan memiliki suatu pola atau karakteristik tertentu dalam kehidupan nyata. Tujuan dari penelitian ini adalah mengetahui tingkat kesulitan siswa Sekolah Menengah Kejuruan untuk menyelesaikan soal materi Barisan dan Deret. Subyek yang digunakan adalah 12 orang siswa kelas XII di SMK Kartini Bhakti Mandiri Kabupaten Bandung Barat. Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif yang hasilnya diperoleh dari pemberian soal sesuai dengan indikator Barisan dan Deret. Analisis dilakukan dengan memberikan tes tertulis berbentuk soal uraian yang berjumlah 5 soal. Penelitian ini merupakan sebuah studi pendahuluan. Hasil analisis data dan pembahasan menjelaskan, bahwa kemampuan siswa pada materi Barisan dan Deret yang masih tergolong rendah. Dari rekapitulasi perhitungan yang telah dilakukan, didapat bahwa persentase kesalahan yang paling banyak dilakukan siswa yakni sekitar 84,5% pada indikator menyatakan suatu situasi atau masalah sehari-hari tentang Barisan dan Deret ke dalam bentuk model matematika dan menyelesaikannya. AbstractThis research has a background that discusses, that the material Sequence and Series in students are very important to determine a list of numbers that sequence and have a certain pattern or characteristic in real life. The purpose of this study was to determine the level of difficulty of Vocational High School students to solve the Sequence and Series material problems. The subjects used were 12 students of class XII at SMK Kartini Bhakti Mandiri in West Bandung Regency. The method used in this study is a qualitative descriptive which results are obtained from the provision of questions following the Sequence and Series indicators. The analysis was carried out by giving a written test in the form of a description of a total of 5 questions. This research is a preliminary study. The results of the data analysis and discussion explained, that the ability of students in the material Sequence and Series are still relatively low. From the recapitulation of calculations that have been done, it is found that the percentage of errors that most students make is around 84.5% on the indicator stating a daily situation or problem about Sequences and Series in the form of mathematical models and solving them.
Pengembangan Media Pembelajaran Berbasis Macromedia Flash Bermuatan Problem Posing terhadap Kemampuan Pemecahan Masalah Matematis
Authors: Hodiyanto Hodiyanto , Darma Yudi , Putra Syarif Restian Sarisma 
Published: November 2021

AbstrakTujuan penelitian ini ingin menghasilkan media pembelajaran macromedia flash bermuatan problem posing terhadap kemampuan pemecahan masalah matematis yang mencapai kriteria valid, kepraktisan, dan keefektifan. Metode penelitian ini adalah penelitian pengembangan dengan model rancangan 4-D oleh Thiagarajan, yaitu Define, Design, Develop, dan Desseminate. Tetapi pada penelitian ini hanya pada tahap pengembangan saja. Subjek dalam penelitian ini adalah siswa kelas VIII SMP Negeri 5 Sukadana sebanyak 20 siswa, ahli dan guru. Instrumen yang digunakan dalam penelitian ini adalah lembar validasi, angket dan soal posttest. Berdasarkan hasil penelitian diperoleh hasil validasi macromedia flash bermuatan problem posing memiliki kriteria sangat valid. Tingkat kepraktisan terhadap macromedia flash bermuatan problem posing memiliki kriteria sangat praktis, tingkat keefektifan terhadap macromedia flash bermuatan problem posing tergolong kriteria sangat efektif. Dengan demikian dapat disimpulkan bahwa macromedia flash bermuatan problem posing yang dikembangkan dapat digunakan karena memenuhi kriteria kevalidan yang sangat valid, kepraktisan yang sangat praktis, dan keefektifan yang efektif. AbstractThe purpose of this study is to produce Macromedia flash learning media containing problem posing to mathematical problem-solving abilities that reach valid criteria, practicality, and effectiveness. This research method is a research development with a 4-D design model by Thiagarajan: Define, Design, Develop, and Disseminate. But this research is only at the development stage. The subjects in this study were 20th-grade students of SMP Negeri 5 Sukadana, experts, and teachers. The instruments used in this study were validation sheets, questionnaires, and posttest questions. Based on the research results obtained by the results of validation Macromedia flash loaded posing problem has very valid criteria. The level of practicality with problem-posing Macromedia flash has very practical criteria, the level of effectiveness with problem-posing Macromedia flash is classified as very effective criteria. Thus it can be concluded that Macromedia flash with posing problem developed can be used.
Penerapan Model Murder Terhadap Peningkatan Kemampuan Analisis Dan Evaluasi Matematis Siswa SMP
Authors: Setiyani Setiyani , Sagita Laela , Herdiawati Indriani Eka 
Published: November 2021

AbstrakDitinjau dari aspek kognitif, kemampuan analisis dan kemampuan evaluasi matematis merupakan kemampuan berpikir tingkat tinggi yang perlu mendapat perhatian. Peningkatan kedua kemampuan tersebut perlu didukung oleh model pembelajaran yang tepat, salah satunya model MURDER. Tujuan penelitian adalah mengetahui aktivitas siswa selama pembelajaran matematika menggunakan model MURDER, peningkatan kemampuan analisis, dan peningkatan kemampuan evaluasi matematis. Metode yang digunakan yaitu eksperimen, dengan desain One Group Pretest and Postest. Penelitian dilakukan di SMP Negeri 2 Mandirancan dengan sampel random sampling sebanyak 36 siswa. Instrumen penelitian diantaranya tes kemampuan analisis matematis, tes kemampuan evaluasi matematis, dan lembar observasi. Hasil penelitian menunjukan bahwa aktivitas siswa dengan model MURDER mengalami peningkatan setiap pertemuan. Rata-rata persentase aktivitas siswa pada pertemuan pertama sebesar 73%, pertemuan kedua sebesar 76%, pertemuan ketiga sebesar 80%. Selanjutnya, terdapat peningkatan kemampuan analisis matematis dengan rata-rata 0.75, interpretasi tinggi dan terdapat peningkatan kemampuan evaluasi matematis dengan rata-rata mencapai 0.69, interpretasi sedang. Berdasarkan hasil yang diperoleh, model MURDER efektif diterapkan untuk meningkatkan kemampuan analisis dan evaluasi matematis siswa SMP. Application of MURDER Learning to Improve the Analytical and Mathematical Evaluation Ability at Junior High School AbstractIn cognitive aspects, analytical and mathematical evaluation abilities are higher-order thinking skills that need attention. The improvement of these needs supporting by an appropriate learning model, one of which is the MURDER model. This study aims to determine: student activities during mathematics learning using the MURDER model, increased analytical skills, and increased mathematical evaluation abilities. The method used is an experiment, with One Group Pretest and Postest design. The study was conducted at SMPN 2 Mandirancan taking 36 students by Random Sampling. The instruments used were mathematical analysis ability tests, mathematical evaluation ability tests, and observation sheets. The results showed that student activities with the MURDER model at each meeting increased. The average percentage of student activity at the first meeting was 73%, the second meeting was 76%, the third meeting was 80%. There was an increase in mathematical analysis skills with an average of 0.75 high interpretation and there was an increase in mathematical evaluation skills with averaging 0.69, moderate interpretation. Based on the results obtained, the MURDER model is effectively applied to improve the analysis and evaluation skills of junior high school students.
Proses Berpikir Siswa dalam Memperbaiki Kesalahan Generalisasi Pola Linier
Authors: Setiawan Yayan Eryk 
Published: November 2021

AbstrakMasih banyak kesalahan yang dilakukan oleh siswa dalam menggeneralisasi pola linier yang disebabkan fokus pada data numerik. Siswa-siswa yang mengalami kesalahan ini penting diberikan kesempatan kembali untuk memperbaiki kesalahan dalam menggeneralisasi pola linier. Untuk itu, tujuan penelitian ini adalah menganalisis proses berpikir siswa dalam memperbaiki kesalahan generalisasi pola linier. Sesuai dengan tujuan penelitian tersebut, maka penelitian ini merupakan penelitian kualitatif deskriptif dengan pendekatan studi kasus terhadap 2 siswa kelas VIII sekolah menengah pertama yang berhasil memperbaiki kesalahan generalisasi pola linier. Hasil penelitian menunjukkan bahwa terdapat dua jenis proses berpikir dalam memperbaiki kesalahan generalisasi pola linier, yaitu memperbaiki dengan menguji dan mencoba, serta memperbaiki dengan mengganti strategi generalisasi. Proses memperbaiki dengan menguji dan mencoba terdiri dari tiga tahap, yaitu: tahap mencari beda, tahap menguji, dan tahap mencoba. Proses memperbaiki dengan mengganti strategi generalisasi terdiri dari tiga tahap, yaitu: tahap mencari beda, tahap mengganti strategi generalisasi, dan tahap menemukan rumus suku ke-n. Cara yang paling efektif untuk memperbaiki kesalahan generalisasi pola linier adalah dengan cara mengganti strategi. Students Thinking Processes in Correcting Errors of Linear Pattern GeneralizationAbstractThere are still many mistakes made by students in generalizing linear patterns due to the focus on numerical data. It is important for students who experience this error to be given another opportunity to correct errors in generalizing linear patterns. For this reason, the purpose of this study is to analyze students' thought processes in correcting errors in the generalization of linear patterns. By the objectives of this study, this research is a descriptive qualitative study with a case study approach to 2 students of class VIII junior high school who succeeded in correcting errors in the generalization of linear patterns. The results showed that there are two types of thought processes in correcting errors in the generalization of linear patterns, namely repairing by testing and trying, and improving by replacing generalization strategies. The process of improving by testing and trying consists of three stages, namely: the stage of finding a difference, the testing stage, and the trying stage. The process of improving by replacing the generalization strategy consists of three stages, namely: the stage of finding a difference, the stage of changing the generalization strategy, and the stage of finding the formula for the nth term. The most effective way to correct linear pattern generalization errors is by changing strategies.
Pengaruh Penerapan Media UnoMath untuk Meningkatkan Kemampuan Komunikasi Matematis dan Kemandirian Belajar Siswa
Authors: Robiana Asep , Handoko Hendri 
Published: November 2021

AbstrakKomunikasi matematis dan kemandirian belajar merupakan hal yang sangat penting dimiliki oleh siswa dan merupakan bagian esensial dari matematika. Masih rendahnya kemampuan matematis dan kemandirian belajar siswa di lapangan, guru harus mengupayakan pembelajaran dengan menerapkan media pembelajaran yang dapat memberikan peluang dan mendorong siswa untuk melatih kemampuan komunikasi matematis dan kemandirian belajar siswa, salah satu media pembelajaran tersebut yaitu media UnoMath. Tujuan Penelitian ini yaitu untuk mengetahui pengaruh penerapan media UnoMath terhadap peningkatan kemampuan komunikasi matematis dan kemandirian belajar siswa. Metode yang digunakan pada penelitian ini adalah penelitian eksperimen dengan pendekatan kuantitatif dengan desain pretest-posttest control group, penelitian ini dilakukan di SMP Negeri 3 Rajagaluh, kelas VIII A sebanyak 21 orang dan VIII C sebanyak 31 orang sebagai sampel, dengan instrumen tes dan angket. Teknik analisis data yang digunakan yaitu uji-t dengan berbantuan SPSS. Hasil penelitian menunjukkan adanya peningkatan kemampuan komunikasi matematis dan kemandirian belajar siswa. Effect of Application of UnoMath Media to Improve Mathematical Communication Skills and Self-Regulated Learning AbstractMathematical communication and self-regulated learning are very important things for students and are an essential part of mathematics. Still low mathematical abilities and self-regulated learning student in the field, teachers must strive for learning by applying learning media that can provide opportunities and encourage students to practice mathematical communication skills and self-regulated learning student, one of these learning media is UnoMath media. The purpose of this study was to determine the effect of the application of UnoMath media on improving students' mathematical communication skills and self-regulated learning. The method used in this research is experimental research with a quantitative approach with pretest-posttest control group design, this research was conducted at SMP Negeri 3 Rajagaluh, class VIII A as many as 21 people and VIII C as many as 31 people as a sample, with test instruments and questionnaires. The data analysis technique used is the t-test assisted by SPSS. The results showed an increase in mathematical communication skills and a self-regulated learning student.
Self Efficacy Calon Guru Matematika
Authors: Sumartini Tina Sri 
Published: November 2021

AbstrakSelf-efficacy calon guru matematika masih kurang. Oleh karena itu, perlu dilakukan analisis mengenai self-efficacy calon guru matematika sehingga dapat diketahui aspek self-efficacy yang perlu ditingkatkan. Tujuan penelitian ini yaitu untuk menganalisis self-efficacy calon guru matematika dalam mengajar matematika. Metode penelitian yang digunakan yaitu kualitatif dengan menggunakan teknik purposive sampling. Sampel yang diambil sebanyak tiga orang calon guru matematika jurusan pendidikan matematika di Institut Pendidikan Indonesia. Analisis data dilakukan secara kualitatif. Hasil penelitian menunjukkan bahwa calon guru matematika memiliki keyakinan dalam penguasaan pengetahuan matematika, namun merasa kurang yakin bahwa dirinya mampu untuk menyampaikan materi matematika kepada siswa. Kurangnya keyakinan ini berakibat pada kemampuan pedagogis calon guru matematika. Self-Efficacy of Mathematics Prospective TeachersAbstractThe self-efficacy of prospective mathematics teachers is still lacking. Therefore, it is necessary to analyze the self-efficacy of prospective mathematics teachers so that it can be seen which aspects of self-efficacy need to be improved. The purpose of this study was to analyze the self-efficacy of prospective mathematics teachers in teaching mathematics. The research method used is qualitative by using a purposive sampling technique. The sample taken was three prospective mathematics teachers majoring in mathematics education at the Indonesian Institute of Education. The data analysis was done qualitatively. The results showed that the prospective mathematics teacher had confidence in the mastery of mathematical knowledge, but felt less confident that he was able to convey mathematics material to students. This lack of confidence results in the pedagogical abilities of prospective mathematics teachers.
A Novel Intervention for Management of Behavioral and Psychological Symptoms of Dementia in Nursing Home Communal Areas: Results of a Small-Scale Pilot Trial
Authors: Gutman Gloria , Vashisht Avantika , Kaur Taranjot , Karbakhsh Mojgan , Churchill Ryan , Moztarzadeh Amir 
Published: November 2021

Background: Behavioral and psychological symptoms of dementia (BPSD) exhibited by persons with dementia (PwD) in nursing home communal areas are generally managed by segregation and/or pharmacological interventions. Objective: This study trialed MindfulGarden (MG), a novel digital calming device, in a Canadian nursing home. Methods: Participants were 15 PwD (mean age = 87.67; 5m,10f; mean MMSE = 11.64±7.85). Each was observed by a research assistant (RA) for an average of 8–10 hours on two separate days. The RA followed them during time spent in communal areas of the nursing home including their unit’s dining space, lounges, and corridors and spaces shared with other units (e.g., gym and gift shop) and documented any BPSD exhibited. Day-1 provided baseline data; on Day-2, residents were exposed to MG if nursing staff considered their BPSD were sufficiently intense or sustained to warrant intervention. Staff rated the impact as positive, neutral, or negative. Results: On Day-1, 9 participants exhibited both aggressive and non-aggressive behaviors, 4 non-aggressive behaviors only, and 2 no BPSD. On Day-2, 7 exhibiting aggressive behaviors were exposed to MG. Staff reported MG as having distracting/calming effects and gave positive impact ratings to 6/13 exposures; there were no negative ratings. The most common aggressive BPSD on days of observation were pushing/shoving and screaming. Conclusion: MG may have value as a “psychiatric crash cart” in de-escalating agitation and aggression in care home settings.
Testing Boolean Functions Properties
Authors: Zhengwei Xie , Daowen Qiu , Guangya Cai , Gruska Jozef , Mateus Paulo 
Published: November 2021

The goal in the area of functions property testing is to determine whether a given black-box Boolean function has a particular given property or is ɛ-far from having that property. We investigate here several types of properties testing for Boolean functions (identity, correlations and balancedness) using the Deutsch-Jozsa algorithm (for the Deutsch-Jozsa (D-J) problem) and also the amplitude amplification technique. At first, we study here a particular testing problem: namely whether a given Boolean function f, of n variables, is identical with a given function g or is ɛ-far from g, where ɛ is the parameter. We present a one-sided error quantum algorithm to deal with this problem that has the query complexity [Formula: see text]. Moreover, we show that our quantum algorithm is optimal. Afterwards we show that the classical randomized query complexity of this problem is [Formula: see text]. Secondly, we consider the D-J problem from the perspective of functional correlations and let C( f, g) denote the correlation of f and g. We propose an exact quantum algorithm for making distinction between | C( f, g)| = ɛ and | C( f, g)| = 1 using six queries, while the classical deterministic query complexity for this problem is Θ(2 n) queries. Finally, we propose a one-sided error quantum query algorithm for testing whether one Boolean function is balanced versus ɛ-far balanced using [Formula: see text] queries. We also prove here that our quantum algorithm for balancedness testing is optimal. At the same time, for this balancedness testing problem we present a classical randomized algorithm with query complexity of O(1/ ɛ2). Also this randomized algorithm is optimal. Besides, we link the problems considered here together and generalize them to the general case.
Sex Differences in Behavior and Molecular Pathology in the 5XFAD Model
Authors: Sil Annesha , Erfani Arina , Lamb Nicola , Copland Rachel , Riedel Gernot , Platt Bettina 
Published: November 2021

Background: The prevalence of Alzheimer’s disease (AD) is greater in women compared to men, but the reasons for this remain unknown. This sex difference has been widely neglected in experimental studies using transgenic mouse models of AD. Objective: Here, we studied behavior and molecular pathology of 5-month-old 5XFAD mice, which express mutated human amyloid precursor protein and presenilin-1 on a C57BL/6J background, versus their wild-type littermate controls, to compare both sex- and genotype-dependent differences. Methods: A novel behavioral paradigm was utilized (OF-NO-SI), comprising activity measures (Open Field, OF) arena, followed by Novel Object exploration (NO) and Social Interaction (SI) of a sex-matched conspecific. Each segment consisted of two repeated trials to assess between-trial habituation. Subsequently, brain pathology (amyloid load, stress response and inflammation markers, synaptic integrity, trophic support) was assessed using qPCR and western blotting. Results: Female 5XFAD mice had higher levels of human APP and amyloid-β and heightened inflammation versus males. These markers correlated with hyperactivity observed in both sexes, yet only female 5XFAD mice presented with subtle deficits in object and social exploration. Male animals had higher expression of stress markers and neurotrophic factors irrespective of genotype, this correlated with cognitive performance. Conclusion: The impact of sex on AD-relevant phenotypes is in line with human data and emphasizes the necessity of appropriate study design and reporting. Differential molecular profiles observed in male versus female mice offer insights into possible protective mechanisms, and hence treatment strategies.