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All Journal PRISMA JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING FOKUS : Kajian Bimbingan dan Konseling dalam Pendidikan
M Afrilianto, M
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Education Environmental Science Mathematics Public Health Social Sciences Other

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Pendekatan kontekstual berbantuan software geogebra untuk meningkatkan kemampuan komunikasi matematis siswa SMP kelas VIII Nurjanah, Siti; Afrilianto, M; Purwasih, Ratni
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 8 No. 2 (2025): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v8i2.26888

Abstract

This research seeks to enchance the mathematical communication skills of eight-grade junior high school students by implementing a contextual approach supported by Geogebra software. The research method employed is a quasi-experimental with a nonequivalent control group. Data collection techniques in this study involved using intruments in the form of mathematical communication skills tests and interview. The sampling technique employed was purposive sampling. The research sample consisted of 34 students from class VIII-E and 34 students from class VIII-I. The data analysis techniques included data gathering, data analisysis, data visualization, and drawing conclusions using SPSS 25. The conclusion drawn from this study is that the improvement in mathematical communication skills among students taught using the contextual approach supported using Geogebra software is more effective than those taught using conventional methods. This study not only focus on the final results but also considers the entire learning process to achieve a comprehensive and accurate assessment
EFEKTIVITAS LAYANAN BIMBINGAN KELOMPOK TEKNIK SHAPING UNTUK MEREDUKSI PERILAKU PROKRASTINASI AKADEMIK SISWA SMP Shagita, Putri Chitasya; Afrilianto, M; Renata Manuardi, Ardian
FOKUS : Kajian Bimbingan dan Konseling dalam Pendidikan Vol. 8 No. 2 (2025): Vol 8, No 2 Maret 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/fokus.v8i2.24406

Abstract

The aim of this research is to assess the effectiveness of group guidance using a shaping approach to reduce academic procrastination behavior among students who fail to complete academic assignments. Group guidance that uses shaping techniques aims to help modify negative behavior into positive behavior by changing initial behavior into final behavior, thus showing the expected or desired behavior. This research uses a Mix Method or a combination of quantitative data and qualitative data using the Explanatory Sequential Design research design. Quantitative data processing techniques use questionnaires, while qualitative data is processed using observation, interviews and documentation studies. Using a purposive sampling procedure, the subjects in this research were ten students. Based on the findings showing that the research hypothesis was accepted, group guidance assisted by shaping techniques succeeded in reducing students' academic procrastination behavior, obtained t-count = -21.124 with a significance level (2-tailed) of 0.000 < 0.05. Specifically, there were variations in the level of academic procrastination behavior before and during group guidance treatment.
Improving Mathematical Problem Solving Skills and Self-Confidence of Junior High School Students Using A Problem Based Learning Rindiani, Hesti; Sumarmo, Utari; Afrilianto, M
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.27133

Abstract

Problem solving ability is one of the skills that need to be developed in students. The background of this study is based on the results of preliminary observations which show that students' problem solving skills and self confidence are still low, one of which is caused by the use of conventional learning methods. This study aims to determine the effect of problem-based learning on improving students' mathematical problem solving ability and self-confidence, see the effectiveness of problem-based learning on students' mathematical problem solving ability and self-confidence and see students' responses to problem-based learning. This research used quasi-experimental method with Pretest-Posttest Control Group Design. The research subjects were VIII grade students of SMP Negeri 2 Saguling as many as 64 students, consisting of two classes, namely experimental and control. The research instrument was a description test to measure mathematical problem solving ability and a Likert scale to measure students' self-confidence. Data were analyzed using normality test, homogeneity, t-test, Mann-Whitney, and N-Gain calculation. The results showed that there was a significant difference between the experimental and control classes in improving mathematical problem solving skills seen from the average n-gain value of the experimental class in the high category while the control class was in the medium category. Problem based learning is very effective in improving mathematical problem solving skills seen from the percentage of student learning completeness and effective in increasing student self confidence. Students' response to problem-based learning was positive.
Co-Authors Euis Eti Rohaeti Hamka, Muhamad Heris Hendriana Jalaludin, Muhamad Jenal Abidin, Jenal Moka, Santriwati Ningrum, Nadya Sukma Ramadhani Sutarno, Shafira Ratni Purwasih, Ratni Renata Manuardi, Ardian Rindiani, Hesti Rippi Maya Safitri, Anggie Munthia Sagita, Fitria Dwi Saida Manalu, Arpin Chronika Shagita, Putri Chitasya Siti Nurjanah Syamsudin, Nurlia Utari Sumarmo Utomo, Prio Zaenab