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All Journal JPMI (Jurnal Pembelajaran Matematika Inovatif) Mandalika Mathematics and Educations Journal JME (Journal of Mathematics Education)
Muthiah Fildzah Noverli
Universitas Singaperbangsa Karawang
Mathematics

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THE EFFECT OF SELF EFFICACY ON MATHEMATICAL PROBLEM-SOLVING ABILITY BASED ON NEWMAN'S STAGES Luthfi Hanafiah Alhaidar; Hanifah Hanifah; Muthiah Fildzah Noverli
JME (Journal of Mathematics Education) Vol 11, No 1 (2026): JME (Jan - Jun)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v11i1.2747

Abstract

Students' low ability to solve contextual mathematical problems is often influenced by affective factors, one of which is self-efficacy. This study aims to determine the effect of self-efficacy on students' mathematical problem-solving ability based on Newman's stages. The research approach used was quantitative with a causal-associative method. The sample in this study consisted of 31 students. The research instruments consisted of a self-efficacy questionnaire and a mathematical problem solving ability test. Data analysis techniques included prerequisite tests and hypothesis testing using the t-test and the coefficient of determination. The analysis results showed a significant value of 0.010 0.05, so it can be concluded that there is a significant influence of self-efficacy on students' mathematical problem-solving ability, namely 20.7%.
Analisis Kebutuhan Media Pembelajaran Interaktif pada Materi Statistika SMP Kelas VIII Aisyah Three Hapsari; Hendra Kartika; Muthiah Fildzah Noverli
Mandalika Mathematics and Educations Journal Vol 8 No 2 (2026): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v8i2.12073

Abstract

The utilization of interactive learning media in statistics instruction remains suboptimal, whilestudents demonstrate an increasing need for more engaging technology-based learning. Thiscondition emphasizes the importance of needs analysis as a foundation for developing relevantlearning media. This study aims to analyze and identify the needs for interactive learning mediain statistics for eighth-grade junior high school students. This research is a descriptive studyemploying a qualitative approach. The subjects consisted of two mathematics teachers and eightstudents from eighth-grade selected purposively with heterogeneous academic abilities. Datacollection was conducted through semi-structured interviews. The data were analyzed using theMiles, Huberman, and Saldaña model, encompassing data reduction, data display, and conclusiondrawing. The findings concluded that teachers and students require interactive learning mediawith specific characteristics to address students' learning difficulties in understanding statisticalconcepts. The identified media needs were categorized into three main aspects, including graduallystructured content presentation accompanied by real-world examples and dynamic visualizationsusing images or animations; two-way interactivity through quizzes or games coupled with practiceexercises featuring immediate feedback; and visually appealing yet simple design with flexibleaccessibility via smartphones. Therefore, the development of interactive learning media with suchcharacteristics is highly necessary to support more effective, interactive, and meaningful statisticslearning for eighth-grade junior high school students.
Analisis kemampuan representasi matematis siswa kelas IX pada materi statistika Shafira Nur Annisa; Hanifah Hanifah; Muthiah Fildzah Noverli
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 9 No. 3 (2026): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v9i3.31172

Abstract

The ability to represent mathematical concepts is one of the crucial skills. However, this skill has not developed well. This study aims to explain how ninth-grade junior high school students can demonstrate mathematical representation related to verbal, pictorial, and symbolic elements. The descriptive quantitative method is used in this study, which involves the analysis of descriptive statistical data. There are 33 junior high school students in Karawang Regency who are the subjects of the study. This study uses a series of tests consisting of six questions based on the metrics of mathematical representation ability. The collection of student ability categories, average, and standard deviation were calculated for data analysis. As shown by the research results, students do not have ideal mathematical representation skills. While most students have moderate scores, their average is still below standard. Image representation reached the highest level, while verbal representation reached the lowest level. These findings show that students struggle to convey mathematical concepts and relate various representations when solving statistical problems. Therefore, a more structured learning method is needed to strengthen students' abilities in mathematical representation.
Co-Authors Aisyah Three Hapsari Hanifah Hanifah Hendra Kartika Luthfi Hanafiah Alhaidar Shafira Nur Annisa