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All Journal EDU-MAT: Jurnal Pendidikan Matematika Al-Jabar : Jurnal Pendidikan Matematika Desimal: Jurnal Matematika JURNAL PENDIDIKAN MIPA
Rani, Thitra Padma
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Education Mathematics Social Sciences Other

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EFFECTIVENESS OF E-LKPD IN IMPROVING STUDENTS' MATHEMATICAL PROBLEM SOLVING Rani, Thitra Padma; Sutiarso, Sugeng; Firdaus, Rangga
EDU-MAT: Jurnal Pendidikan Matematika Vol 12, No 2 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v12i2.19699

Abstract

The development of digital learning media as problem-based E-LKPD has become a significant trend in the education sector. This media utilizes information and communication technology to provide students with a more interactive, interesting and relevant learning experience. Nevertheless, it is important to determine the extent of the media's contribution to improving students' mathematical problem-solving abilities. Therefore, this research aimed to determine the effectiveness of PBL-based E-LKPD on flat-sided geometric material to improve the ability to solve mathematical problems. This research is a quasi-experimental research with a pretest-posttest design. The research subjects were class VIII students at SMP Negeri 3 Banjar Baru. Class VIII A is the experimental class and class VIII C is the control class. Each class has 30 students. The research instrument is questions in the form of essays on flat-sided geometric material that includes problem solving skills. The effectiveness of E-LKPD is measured using the N-Gain test. The research results show that the effectiveness of E-LKPD is in the high category. Keywords: Aptitude for problem-solving, E-LKPD, PBL, digital learning
Integrating problem-based learning in e-lkpd: Enhancing problem-solving ability and adversity quotients Rani, Thitra Padma; Sutiarso, Sugeng; Firdaus, Rangga
Al-Jabar: Jurnal Pendidikan Matematika Vol 15 No 2 (2024): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v15i2.23302

Abstract

Background: Students' mathematical problem-solving ability and adversity quotient remain low, particularly in learning environments that lack contextual approaches. Problem-based learning (PBL) has proven effective in improving these skills, especially when supported by interactive technology such as E-LKPD.Aim: This study aims to develop a PBL-based E-LKPD that is valid, practical, and effective in enhancing students' problem-solving abilities and AQ.Method: The research employed the ADDIE development model with eighth-grade students from SMP Negeri in Banjar Baru as the subjects. The practicality sample consisted of 6 students selected through purposive sampling, while the effectiveness sample included 60 students selected through random sampling. Data were collected through observations, interviews, questionnaires, and problem-solving tests, then analyzed using descriptive statistics and t-tests.Result: PBL-based E-LKPD was deemed valid, with an average score of 87% from content experts and 85% from media experts. Its practicality was rated as excellent, with scores of 91% from both students and educators. An Independent Sample t-test on N-gain data indicated that the E-LKPD effectively improved students' mathematical problem-solving abilities and AQ (??? = 0.00 < ? = 0.05).Conclusion: The PBL-based E-LKPD has been proven valid, practical, and effective in enhancing students' mathematical problem-solving abilities and adversity quotient, making it a viable and innovative alternative in the learning process.
Problem solving ability: The impact of student worksheets based on problem-based learning models on set material in junior high school Rani, Thitra Padma; Sutiarso, Sugeng
Desimal: Jurnal Matematika Vol. 6 No. 2 (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.v6i2.17071

Abstract

The problem in this study is related to the less optimal ability to solve students' mathematical problems. Therefore, the purpose of this study was to find out and analyze the average difference in the ability to solve mathematical problems between students who apply the PBL model assisted by worksheets and those who apply the conventional learning model at one of the junior high schools in Tulang Bawang district. This study uses a quasi-experimental method. Samples were taken using the Cluster Random Sampling technique with a lottery procedure. The instrument in this study was an essay test. Hypothesis testing using t-test: prior to testing the hypothesis, prerequisite tests were first carried out, namely the normality test and homogeneity test. From the results of the hypothesis testing, it can be concluded that the application of the PBL model with the help of student worksheets can improve students' mathematical problem-solving abilities. Worksheets made with PBL syntax can facilitate and improve students' problem-solving abilities. This can be seen in the increase in the average value of the class that applies the PBL model
Efektifitas Penggunaan GeoGebra dalam Meningkatkan Pemecahan Masalah Matematis Rani, Thitra Padma; Antony, Rian
JURNAL PENDIDIKAN MIPA Vol. 15 No. 4 (2025): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v15i4.3504

Abstract

Rendahnya kemampuan siswa memecahkan masalah matematis, terutama pada materi bangun ruang sisi lengkung membutuhkan strategi pembelajaran yang lebih adaptif dan kontekstual. Sebagai perangkat lunak geometri dinamis  dalam pembelajaran matematika, GeoGebra bisa digunakan untuk memperkuat pemahaman siswa konseptual secara lebih baik. Tujuan penelitian untuk mengetahui efektifitas pengunaan GeoGebra dalam meningkatkan kemampuan pemecahan masalah matematis siswa. Metode Quasi-eksperimen yang dilengkapi One Group Pretest–Posttest Design digunakan di dalam penelitian ini. Tempat penelitian dilakukan di Sekolah Swasta di Kota Bogor. Penelitian terjadi pada semester ganjil tahun ajaran 2025/2026, yakni pada bulan Agustus 2025,  pada bahan ajar bangun ruang sisi lengkung. Sampel dipilih secara purposive, yaitu kelas IX A sejumlah 26 Siswa. Instrumen utama yang diaplikasikan di dalam penelitian ini berupa soal tes essay sebanyak lima butir, yang sudah dilakukan uji validitas, reliabilitas, level kesukaran, dan daya pembeda. Uji hipotesis menggunakan uji paired sample t-test, menunjukkan hasil sig=0,00<α=0,05. Temuan ini menunjukkan bahwa penerapan GeoGebra secara signifikan efektif dalam meningkatkan rata-rata kemampuan siswa dalam memecahkan masalah matematis. Hasil penelitian dapat memberikan landasan bagi guru dan pendidik untuk mempertimbangkan penggunaan aplikasi interaktif seperti GeoGebra sebagai bagian dari strategi pembelajaran matematika modern yang adaptif terhadap kebutuhan siswa.
Co-Authors Antony, Rian Rangga Firdaus Sugeng Sutiarso