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All Journal Jurnal Pendidikan Matematika dan IPA Jurnal S2 Pendidikan Matematika Al-Jabar : Jurnal Pendidikan Matematika Jurnal Pembelajaran Matematika Indonesian Journal of Science and Mathematics Education Desimal: Jurnal Matematika MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Journal of Advanced Sciences and Mathematics Education
Rany Widyastuti
Program Studi Magister Pendidikan Matematika Program Pascasarjana UNS
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics Social Sciences

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Students’ mathematical representation skills in solving numeracy problems with profession context Septiadi, Dimas Danar; Yuliati, Ikha; Widyastuti, Rany
Desimal: Jurnal Matematika Vol. 5 No. 3 (2022): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v5i3.14298

Abstract

This research aims to describe students’ mathematical representation skills in solving numeracy problem with profession context. This is qualitative descriptive research with 12 students for its research subjects. There are four steps in analyzing the data, those are data collection, data condensation, data display, and conclusions. To check the validity, researchers used techniques triangulation. This research shows that, among those 12 subjects, there are four types of model in solving numeracy problem with profession context. Those are first, students use visual and external representation; second, they perform visual, verbal, math model, and internal representation; third, they use verbal, visual, and external representation; and fourth of all, they use verbal and external representation. To make this result fruitfull, other researchers can try to design mathematics learning activities to train students’ mathematical representation skill such that when students solve numeracy problems, they will not face any difficulties. 
Cooperative learning and group learning: The impact on high order thinking skills in the pythagorean theorem material Suri, Fraulein Intan; Osella, Sonnia; Masykur, Ruhban; Widyastuti, Rany
Desimal: Jurnal Matematika Vol. 6 No. 1 (2023): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v6i1.17217

Abstract

This study aims to improve students High Order Thinking Skills through the application of the Group to Group Exchange learning model. The research method used is a quasi-experimental model with a Pretest-Posttest Control Group research design and a sampling technique using Cluster Random Sampling. The results showed that based on the research results obtained during the study, the average N-Gain Score for the experimental group using the Group to Group Exchange learning model was 59% with a minimum N-Gain Score of 51% and a maximum of 67%. While the average N-Gain Score control group with the Direct Instruction learning model is 39% with a minimum N-Gain Score of 34% and a maximum of 45%. This means that the Group to Group Exchange (GTGE) learning model is quite effective compared to the Direct Instruction (DI) learning model to improve students High Order Thinking Skill (HOTS).
Analysis of account representatives on taxpayers in lampung province using structural equation model Rinaldi, Achi; Devi, Yulistia; Widyastuti, Rany
Desimal: Jurnal Matematika Vol. 7 No. 3 (2024): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v7i3.25866

Abstract

Tax policy was crucial as it influenced economic growth. The tax rate was determined by the income level of the population. To improve tax administration quality, the government developed infrastructure and enhanced the services of tax office employees. By gathering taxpayers' opinions, the quality of services and oversight could be analyzed to refine tax administration performance in the future. This study aimed to determine the effect of service quality, consultation, and supervision by account representatives on taxpayer compliance. It employed a quantitative approach, utilizing various statistical tests with SEM analysis. The population consisted of 97,714 active taxpayers registered at six KPP Pratama offices in Lampung in 2022. The sample size was determined using the Slovin formula, resulting in 100 taxpayers selected through Simple Random Sampling. Data were collected directly from active taxpayers using a questionnaire as the research instrument. The findings revealed that the variables of service quality, consultation, and supervision by account representatives had a significant influence on taxpayer compliance, both partially and simultaneously.
Mathematical problem-solving ability: The effect of numbered head together (NHT) model and mathematical prior knowledge Widyastuti, Rany
Journal of Advanced Sciences and Mathematics Education Vol 1, No 2 (2021): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (989.075 KB) | DOI: 10.58524/jasme.v1i2.53

Abstract

This study aimed to determine the effect of the NHT (Numbered Head Together) cooperative learning model on mathematical problem-solving abilities in terms of students' mathematical prior knowledge. The researchers employed quasi-experimental research and collected the mathematical problem-solving data using a description test. At the same time, the researchers investigated students’ mathematical prior knowledge using the mid-semester examination (UTS) scores. The hypothesis was tested using the two-way ANOVA with unequal cells. The results showed that the NHT learning model provided better problem-solving skills than the direct learning model. The category of students' prior knowledge also affected their mathematical problem-solving abilities. Therefore, teachers should pay attention to the prior knowledge possessed by students so that an appropriate learning model can be selected.
THE EFFECT OF SSCS LEARNING MODEL WITH METAPHOR APPROACH ON MATHEMATICS PROBLEM SOLVING ABILITY IN REVIEW OF STUDENTS' LEARNING STYLES Janah, Elfa Latifatul; Netriwati, Netriwati; Widyastuti, Rany
Jurnal Pendidikan Matematika dan IPA Vol 14, No 2 (2023): July 2023
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v14i2.56388

Abstract

This study aims to determine whether there is an effect of the SSCS learning model with a metaphorical approach and PBL learning on mathematical problem-solving abilities in terms of learning styles. This research is a type of Quasy Experiment Design. The population in this study were students of class VIII at SMP N 09 Tulang Bawang Tengah, the sampling method used a simple random sampling technique. The data in this study were collected using tests and questionnaires. Hypothesis testing using analysis of variance of two unequal cells with a significance level of 5%. The prerequisite tests in this study include the normality test and the homogeneity test using SPSS which were carried out before testing the hypothesis. The results of the analysis obtained that p-value (sig.) = 0.037 0.05 then H0 was rejected, p-value (sig.) = 0.035 0.05 then H_0 was rejected, p-value (sig.) = 0.732 0, 05 then H0 is accepted so that, the results of the analysis in this study are (1) there is an effect of the SSCS learning model with a metaphorical approach and PBL model learning on mathematical problem-solving abilities. (2) there is an effect of visual, audio, and kinesthetic learning styles on mathematical problem-solving abilities. (3) there is no interaction between learning model factors and learning styles on mathematical problem-solving abilities.
When proof meets personality: A study of artisan-type prospective teachers in mathematical problem-solving Widyastuti, Rany; Dimas Danar Septiadi; Ikha Yuliati; Fitriyatul Qomariyah; Fatimatuz Zahroh
Desimal: Jurnal Matematika Vol. 8 No. 2 (2025): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/e6rk0523

Abstract

Mathematical problem-solving ability is an essential skill for prospective teachers; however, many students still face difficulties, particularly in proof-based problems. Previous studies have mostly examined personality types in the context of application-based tasks, so there has been limited attention to students’ mathematical problem-solving abilities with the artisan personality type in dealing with proofs of statements. UIN Madura students in the Mathematics Education study program tend to have an artisan personality. They have a tendency to solve problems by using a common pattern. Therefore, when they faced mathematical proof comprehension problems, they often experienced difficulties and limitations. This made the researcher interested in conducting a study that aims to describe the abilities of UIN Madura students in the Mathematics Education study program in solving mathematical problems based on Polya's theory viewed from the artisan personality type. This study is a descriptive qualitative study. The subjects of this study were two students with the artisan personality type. Data collection instruments used questionnaires (personality type data), essay tests (problem-solving abilities), and interviews. Data analysis techniques used the Miles and Huberman technique. Based on the research results, it is known that artisan-type students can understand problems, make plans, and solve problems correctly but cannot re-check the results they have obtained. This indicates the tendency of artisan-type students to choose quick and simple approaches, yet with less accuracy in the verification process. This study contributes to the scientific development by highlighting the distinctive characteristics of artisan-type students in solving mathematical proofs. The findings of this research can serve as a basis for educators in designing learning strategies that are more aligned with students’ personalities.
Co-Authors Abdul Hamid Achi Rinaldi Agus Jatmiko Agustina, Safitri Bambang Sri Anggoro Budi Usodo Dimas Danar Septiadi Dona Dinda Pratiwi Fatimatuz Zahroh Fitriyatul Qomariyah Fraulein Intan Suri Ikha Yuliati Janah, Elfa Latifatul Mujib Mujib, Mujib Mulia, Dira Utami Netriwati Nisa, Nur Atikah Khairun Nurul Puspita, Nurul Osella, Sonnia Puji Hayati, Puji Ramadhana Komala Riyadi Riyadi Rizki, Fitria Ruhban Masykur Santi Widyawati Septiadi, Dimas Danar Siti Mardiah, Siti Sundary, Pitri Yuliati, Ikha Yulistia Devi