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All Journal INSPIRAMATIKA Journal of Instructional Mathematics Tesseract: International Journal of Geometry and Applied Mathematics
‘Adna, Syita Fatih
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Education Mathematics Social Sciences

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THE EFFECT OF THE STAD LEARNING MODEL WITH THE RME APPROACH ON THE MATHEMATICAL REASONING ABILITY OF JUNIOR HIGH SCHOOL STUDENTS FLAT SIDE SPACE BUILDING MATERIALS Pandega, Siwi Nur; Hendrastuti, Zuida Ratih; ‘Adna, Syita Fatih
Tesseract: International Journal of Geometry and Applied Mathematics Vol. 2 No. 2 (2024): Tesseract: International Journal of Geometry and Applied Mathematics
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/tess.v2i2.34

Abstract

This study aims to analyze the classical mastery of mathematical reasoning abilities in the STAD learning model with the RME approach and the direct learning model. Another goal is to analyze the comparison of mathematical reasoning abilities with the STAD learning model and the RME approach with the direct learning model. This is a quantitative study with a quasi-experimental design in the form of a posttest-only control design. The population is class VIII students of SMPN 3 Mertoyudan. Using the cluster random sampling technique, two classes were obtained as research samples, with class VIII C consisting of 32 students as the experimental class and class VIII D consisting of 26 students as the control class. The data analysis technique used is the Z test and the independent sample T test. The test results with the Z test, in the experimental class and control class, is accepted, meaning that the two classes have completed classically. The test results with the T test in both classes, obtained    then is rejected meaning that there is a difference in the mathematical reasoning abilities of the experimental class and control class students. After further analysis, the average value of the experimental class was while the average value of the control class was. Based on the results of the study, it can be concluded that: 1) the mathematical reasoning abilities of students who apply the STAD learning model with the RME approach achieve classical mastery; 2) the mathematical reasoning abilities of students who apply direct learning models achieve classical mastery; and 3) the mathematical reasoning abilities of students who apply the STAD learning model with the RME approach are better than students who apply the direct learning model.
Implementing the Geogebra Applet-Based Connecting, Organizing, Reflecting, Extending (CORE) Learning Model for Students' Critical Thinking Ability in Learning Styles Ardiyanto, Bagas; ‘Adna, Syita Fatih; Chasanah, Aprilia Nurul
Journal of Instructional Mathematics Vol. 3 No. 2 (2022): Connecting Mathematical Concepts in Learning and Solving Problems
Publisher : Pendidikan Matematika STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jim.v3i2.1461

Abstract

In the era of globalization, the 21st century requires learning integrated with technological developments and innovation. This study aims to analyze the implementation of the Connecting, Organizing, Reflecting, Extending (CORE) learning model based on the Geogebra Applet on students' critical thinking ability regarding learning styles. The design of this study is quasi-experimental. The samples in this study were students of class XI MIPA 1 and XI MIPA 2 SMA Negeri 2 Magelang who were selected by the cluster random sampling technique. The instruments used in this study were critical thinking ability tests and learning style questionnaires. Based on the results of the hypothesis test conducted with the ANOVA test of two unequal cell paths and the LSD (Least Significance Difference) follow-up test, results were obtained:  (i) The Core learning model based on the Geogebra Applet produces students' critical thinking ability better than the direct learning model; (ii) There are differences in critical thinking ability between students and the learning styles of divergers, convergers, assimilators and accommodators; (iii) There is no interaction between the Geogebra Applet-based CORE learning model and the direct learning model with the student's learning style.
PENGARUH SELF-EFFICACY, GROWTH MINDSET, DAN GRIT TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA DALAM PEMBELAJARAN MATEMATIKA Rohim, Abdur; ‘Adna, Syita Fatih; Feriyanto, Feriyanto; Subanji, Subanji; Sudirman, Sudirman
INSPIRAMATIKA Vol 11 No 2 (2025): Inspiramatika: Jurnal Inovasi Pendidikan dan Pembelajaran Matematika, July-Decem
Publisher : Program Studi Pendidikan Matematika FKIP Universitas Islam Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/inspiramatika.v11i1.9722

Abstract

This study aims to assess the influence of academic self-belief (self-efficacy) and personal perseverance (grit) in relation to students' understanding of mathematics. A quantitative approach was employed using a correlational design. The participants consisted of 29 university students selected through a cluster random sampling technique. Data were collected using a Likert-scale questionnaire. The analysis included descriptive statistics, classical assumption tests (normality, multicollinearity, autocorrelation, and heteroscedasticity), and hypothesis testing through multiple linear regression analysis. The findings revealed that both self-efficacy and grit had a statistically significant and positive impact on learning outcomes (p < 0.05), whereas growth mindset did not show a meaningful influence (p > 0.05). All three psychological factors contributed significantly to students’ critical thinking skills, with a coefficient of determination (R²) of 0.909, indicating that 90.9% of the variance in critical thinking ability could be explained by the model. Therefore, it can be concluded that students’ critical thinking performance in mathematics is substantially shaped by psychological traits such as self-efficacy and grit.
Co-Authors Abdur Rohim, Abdur Ardiyanto, Bagas Chasanah, Aprilia Nurul Feriyanto Feriyanto Pandega, Siwi Nur Subanji Subanji Sudirman Sudirman Zuida Ratih Hendrastuti