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All Journal Plusminus: Jurnal Pendidikan Matematika At Tawasul: Jurnal Komunikasi dan Penyiaran Islam Journal of Mathematics Instruction, Social Research and Opinion
Isran Rasyid Karo-Karo
Universitas Islam Negeri Sumatera Utara
Religion Humanities Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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The Effect of Quizizz Media on Learning Outcomes and Self-Confidence of Eighth Grade Mathematics Students Junior High School Putri Anggraini; Isran Rasyid Karo-Karo
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 3 (2025): November
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i3.3329

Abstract

Penelitian ini dilatar belakangi oleh rendahnya hasil belajar dan kepercayaan diri siswa dalam menjawab soal matematika. Tujuan penelitian ini untuk mengetahui pengaruh media interaktif berbasis Quizizz terhadap peningkatan hasil belajar dan kepercayaan diri siswa dalam menjawab soal matematika kelas VIII SMP Muhammadiyah 01 Medan Tahun Ajaran 2025/2026. Penelitian ini menggunakan pendekatan kuantitatif dengan metode eksperimen semu (quasi-experimental design) tipe pretest-posttest control group design. Sampel penelitian terdiri atas dua kelas, yaitu kelas eksperimen yang menggunakan media Quizizz dan kelas kontrol dengan pembelajaran konvensional, masing-masing berjumlah 30 siswa. Hasil penelitian ini menunjukkan bahwa nilai t hitung hasil belajar (2,737) dan kepercayaan diri (3,208) lebih besar dari t tabel (1,672), sehingga H₀ ditolak. Dengan demikian, media interaktif berbasis Quizizz berpengaruh signifikan terhadap peningkatan hasil belajar dan kepercayaan diri siswa menjawab soal matematika. This study was motivated by the low learning outcomes and self-confidence of students in answering mathematics questions. The purpose of this study was to determine the effect of Quizizz-based interactive media on improving learning outcomes and self-confidence of students in answering mathematics questions in grade VIII at SMP Muhammadiyah 01 Medan in the 2025/2026 academic year. This study used a quantitative approach with a quasi-experimental design, specifically a pretest-posttest control group design. The research sample consisted of two classes, namely the experimental class that used Quizizz media and the control class with conventional learning, each consisting of 30 students. The results of this study indicate that the calculated t-value for learning outcomes (2.737) and confidence (3.208) is greater than the t-table (1.672), so H₀ is rejected. Thus, Quizizz-based interactive media has a significant effect on improving students' learning outcomes and confidence in answering math questions.
STRATEGI KOMUNIKASI ISLAM DALAM MODERASI BERAGAMA DAN PEDULI LINGKUNGAN SOSIAL DI DESA RAYA Isran Rasyid Karo-Karo; Mahathir Muhammad Hutasuhut; Alfiansyah Borotan; Dwi Andini; Nurmawaty Hasugian; Siska Amelia
AT-TAWASUL Vol 5 No 1 (2026): AT TAWASUL
Publisher : Program Studi Komunikasi dan Penyiaran Islam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51192/ja.v5i1.2196

Abstract

Islamic communication plays an important role in fostering harmony and addressing socio-ecological challenges in plural societies. This study aims to describe Islamic communication strategies in strengthening religious moderation and social-environmental awareness in Desa Raya, Berastagi District, Karo Regency. This research employed a qualitative descriptive approach, with data collected through participatory observation, in-depth interviews, and documentation of community engagement activities carried out by students. Data analysis followed Miles & Huberman’s interactive model, including data reduction, display, and conclusion drawing. The findings reveal that Islamic communication strategies for religious moderation were implemented through educational seminars, interfaith tolerance declarations, joint prayers, and tree planting as a symbol of unity. Meanwhile, social-environmental awareness was fostered through eco-brick education, installation of waste disposal signs, community clean-ups, elderly exercise, as well as religious services and children’s education. The integration of both aspects occurred through dakwah bil hal, which combined persuasive, symbolic, and participatory messages. The study concludes that Islamic communication in Desa Raya was not limited to verbal preaching but was embodied in concrete actions that strengthened interfaith harmony while raising ecological awareness within the community
The Effect of the Group Investigation Model Assisted by the “Make a Match” Game on Mathematical Problem-Solving Ability in Statistics Armina Rangkuti; Isran Rasyid Karo-Karo
Journal of Mathematics Instruction, Social Research and Opinion Vol. 5 No. 3 (2026): September
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v5i3.1995

Abstract

This study aimed to examine the effect of the Cooperative Learning model of the Group Investigation (GI) type assisted by the Make a Match game on students’ mathematical problem-solving ability in statistics. The study employed a quantitative approach with a quasi-experimental method and a Nonequivalent Control Group Design. The sample consisted of 53 eighth-grade students, with 27 students in the experimental group and 26 students in the control group. Data were collected using an essay test of mathematical problem-solving ability that met the validity and reliability requirements (r₁₁ = 0.930). The data were analyzed using descriptive statistics, the Lilliefors normality test, the homogeneity test, an independent-samples t-test, and Cohen’s d effect size. The results showed that the mean posttest score of the experimental class was 83.78, compared with 78.96 for the control class. The t-test result showed a t-count of 2.190, which was greater than the t-table value of 2.008 at α = 0.05, indicating a significant difference between the two groups. The Cohen’s d value of 0.60 indicated a medium effect. Therefore, the Cooperative Learning model of the Group Investigation type assisted by the Make a Match game had a significant and practically meaningful effect on students’ mathematical problem-solving ability in statistics.
Co-Authors Alfiansyah Borotan Armina Rangkuti Dwi Andini Mahathir Muhammad Hutasuhut Nurmawaty Hasugian Putri Anggraini Siska Amelia