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All Journal KALAMATIKA Jurnal Pendidikan Matematika Jurnal Riset Pembelajaran Matematika Sekolah
Valeria Yekti Kwasaning Gusti
Universitas Terbuka
Education Mathematics

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THE INFLUENCE OF THE TREFFINGER LEARNING MODEL AND SELF-DIRECTED LEARNING ON STUDENTS’ MATHEMATIC CRITICAL THINKING SKILLS Valeria Yekti Kwasaning Gusti; Wardani Rahayu
KALAMATIKA Jurnal Pendidikan Matematika Vol 8 No 1 (2023): KALAMATIKA April 2023
Publisher : FKIP Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/KALAMATIKA.vol8no1.2023pp49-62

Abstract

The study investigated the influence of the Treffinger learning model and self-directed learning on the critical thinking skills of junior high school students. The Treffinger learning model is one of the few models addressing the problem of creativity and providing practical suggestions on how to achieve cohesion. On the other hand, self-directed learning is a mental process to increase the knowledge, skills, and self-achievement of individuals with self-planned and self-conducted activities. The research employed a post-test experiment and control group design with two groups. The study employed two groups; one group was treated using the Treffinger learning model, while the other group was treated using a conventional model. Both groups were analyzed using a self-directed learning questionnaire and a critical mathematical thinking skills test. The sample of this research comprised 88 Grade 8 students purposefully selected in relation to the research objectives. The results of the study showed that the Treffinger learning model was statistically significant in enhancing critical mathematical thinking skills compared to the conventional learning models. Additionally, the study found that students who exhibited high levels of self-directed learning were more likely to benefit from the Treffinger learning model than the conventional model, with a statistically significant mean difference of 3.05 points.
Digital Messaging for Mathematical Understanding: A Systematic Review of Whatsapp Use in Indonesian Junior High Schools Valeria Yekti Kwasaning Gusti; Khaola Rachma Adzima
JURNAL RISET PEMBELAJARAN MATEMATIKA SEKOLAH Vol. 10 No. 1 (2026): Jurnal Riset Pembelajaran Matematika Sekolah
Publisher : Program Studi Pendidikan Matematika FMIPA Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jrpms.101.01

Abstract

This study aims to investigate how WhatsApp has been used to deliver mathematics lessons in Indonesia across multiple educational levels, with a particular focus on junior high schools, within the last four  years. The objective is to identify the extent, practices, and effectiveness of WhatsApp as either a primary or supplementary instructional tool in mathematics teaching at the elementary, junior high, senior high, and tertiary levels. The research method employed was a systematic literature review of Scopus-indexed journal articles published in English between 2019 and 2024. Relevant studies were selected, analyzed, and synthesized according to their research design, educational level, and findings. Both qualitative and quantitative research were included to provide a comprehensive understanding of how WhatsApp has been integrated into mathematics education. In many cases, WhatsApp is integrated into instructional designs such as blended learning, flipped classroom activities, and collaborative problem solving, allowing students to interact with teachers and peers. The results show that WhatsApp is widely adopted by Indonesian teachers, particularly during and after the pandemic, to facilitate communication, share learning materials, and support problem-solving activities. At the elementary and junior high levels, studies report that WhatsApp helps improve students’ motivation and engagement, though the impact on learning outcomes is mixed. At the senior high and vocational levels, WhatsApp is often combined with other digital platforms such as YouTube to support blended learning. Evidence from higher education remains limited, with indications that WhatsApp serves mainly as a communication channel rather than a structured learning platform. In conclusion, WhatsApp is a practical, low-cost, and accessible tool that supports mathematics instruction in Indonesia. However, its effectiveness depends on instructional design, teacher facilitation, and integration with other pedagogical strategies
Co-Authors Khaola Rachma Adzima Wardani Rahayu