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All Journal Journal on Education Kognitif: Jurnal Riset HOTS Pendidikan Matematika
Dwi Novita Sari
Universitas Muslim Nusantara Al-Wasliyah
Computer Science & IT Education Library & Information Science Mathematics Social Sciences Other

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Penerapan Model Promblem Based Learning untuk Meningkatkan Kemampuan Komunikasi Matematis Peserta Didik Masniawita Gloria Sinaga; Hidayat Hidayat; Dwi Novita Sari; Atika Erlina Nasution; Novita Syahputri
Journal on Education Vol 6 No 4 (2024): Journal on Education: Volume 6 Nomor 4 Mei-Agustus 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i4.6244

Abstract

This study employs the Problem Based Learning (PBL) approach to better equip XI-IPS 3 students at SMA Negeri 2 Medan to communicate mathematical ideas and concepts. In this complicated information age, mathematical communication abilities are essential, yet reality shows that this ability is still low among Indonesian students. Each of the two cycles of this classroom action study included steps of planning, carrying out the action, observing the results, and reflecting on the experience. Data were collected through written tests and observations to assess students' mathematical communication skills and teachers' proficiency in applying PBL. The results show a significant improvement in students' mathematical communication abilities. Before the intervention, only 28.57% of students reached the Minimum Completion Criteria (KKM), but after two PBL cycles, this percentage increased to 77.14%, exceeding the 75% target. Improvements were also seen across all mathematical communication indicators, including representing problems, explaining strategies, and interpreting solutions. This research proves that PBL is effective in enhancing students' mathematical communication skills.
Analisis Kemampuan Siswa dalam Menyelesaikan Masalah Vektor Bidang Shaputra, Ramadan; Sari , Dwi Novita; Febrian, Feri Dwi; Nasution, Cindy Fadilah
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 4 No. 4 (2024): October - December 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v4i4.2347

Abstract

Penelitian ini bertujuan untuk mendeskripsikan sejauh mana siswa memahami konsep pada vektor. Kami menggunakan pendekatan kualitatif dengan melibatkan 32 siswa kelas XII MIA 3 SMA Negeri 13 Medan, yang mana terdiri dari 18 siswa perempuan, 14 siswa laki-laki. Subjek penelitian di berikan dua jenis soal yang konseptual dan procedural. Dari subjek soal yang diberikan oleh peneliti akan mendapatkan hasil dari penelitian ini. Hasil penelitian menunjukan bahwa siswa yang memiliki pengetahuan rendah sebesar 25% dimn siswa tersebut masih bingun dalam mengerjakan soal yang diberikan. Siswa yang memiliki pengetahuan sedang sebesar 50%, dimana siswa tersebut dapat memahami soal nomor 1 tapi tidak memhami soal nomor 2. Siswa yang memiliki pengetahuan tinggi 25%dimana siswa tersebut sangat baik dalam mengerjakan soal nomor 1 dan 2 serta dapat memahami konsep-konsep dalam menjawab soal tersebut.
Co-Authors Atika Erlina Nasution Febrian, Feri Dwi Hidayat Hidayat Masniawita Gloria Sinaga Nasution, Cindy Fadilah Novita Syahputri Shaputra, Ramadan