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All Journal NUMERICAL (Jurnal Matematika dan Pendidikan Matematika) Jurnal Basicedu Jurnal Basicedu
Hendra Syarifuddin
Universitas Negeri Padang, Indonesia
Education Mathematics Social Sciences

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Efektivitas Pengembangan Local Instructional Theory Berbasis RME pada Topik Pecahan Terhadap Kemampuan Pemecahan Masalah Matematis Siswa di Sekolah Dasar Fadiah Elwijaya; Yerizon Yerizon; Hendra Syarifuddin; Desyandri Desyandri
Jurnal Basicedu Vol 6, No 1 (2022): February, Pages 1-1500
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/basicedu.v6i1.1904

Abstract

Pecahan menjadi materi yang cukup sulit bagi siswa. Pembelajaran pecahan di SD cenderung disajikan secara mekanistik dan belum menstimulasi siswa untuk mengkonstruksi pengetahuan untuk menyelesaikan masalah operasi hitng pecahan. Penelitian ini merupakan tindak lanjut dari hasil uji validitas dan uji kepraktisan Local Instructional Theory (LIT) topik pecahan yang telah dikembangkan dengan menggunakan pendekatan RME untuk sekolah dasar. Pengembangan LIT menggunakan model pengembagan tipe Gravemeijer dan Cobb. Pada penelitian sebelumnya, validitas LIT diuji melalui expert jugment, dan kepraktisan diuji melalui uji coba kelompok kecil dan besar. Keefektifan LIT topik pecahan diuji melalui pemberian postest berupa tes uraian; dengan 17 siswa pada kelas eksperimen dan 15 siswa pada kelas kontrol. Data dianalisis menggunakan uji-t. Dengan demikian, dapat disimpulkan bahwa LIT topik pecahan berbasis pendekatan RME yang dikembangkan efektif untuk meningkatkan kemampuan pemecahan masalah matematis siswa SD.
Improving Mathematical Reasoning Ability by Developing Mathematical Learning Tools Based on Guided Discovery Models Randika Irwa Risky; Hendra Syarifuddin; I Made Arnawa; Suherman
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 6 No. 2 (2022)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v6i2.2632

Abstract

Junior high school students low mathematical reasoning ability is one reason for carrying out this research. This study aims to produce a valid, practical, and effective Guided Discovery-based Mathematics Learning Tool to facilitate students' mathematical reasoning abilities. This study is development research carried out with the Plomp development model. This model has three stages: preliminary investigation, prototyping stage, and assessment phase. This research was conducted at SMP Negeri 4 Padang. The instruments used to collect data are questionnaires, documentation, test questions, and interviews—data analysis using quantitative and qualitative data analysis techniques. The results showed that the Guided Discovery-based Mathematics Learning Toolkit developed was categorized as valid (3.30 for RPP and 3.35 for LKPD) and very practical, respectively, 82.6% and 85% (for RPP and LKPD). Meanwhile, based on the results of the test results of the mathematical reasoning ability test, it was found that 86.3% of students met the criteria for the success of the mathematical reasoning ability test > 80%, meaning that the guided discovery model-based learning device was very influential on mathematical reasoning abilities.
Improving Mathematical Reasoning Ability by Developing Mathematical Learning Tools Based on Guided Discovery Models Randika Irwa Risky; Hendra Syarifuddin; I Made Arnawa; Suherman
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 6 No. 2 (2022)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v6i2.2632

Abstract

Junior high school students low mathematical reasoning ability is one reason for carrying out this research. This study aims to produce a valid, practical, and effective Guided Discovery-based Mathematics Learning Tool to facilitate students' mathematical reasoning abilities. This study is development research carried out with the Plomp development model. This model has three stages: preliminary investigation, prototyping stage, and assessment phase. This research was conducted at SMP Negeri 4 Padang. The instruments used to collect data are questionnaires, documentation, test questions, and interviews—data analysis using quantitative and qualitative data analysis techniques. The results showed that the Guided Discovery-based Mathematics Learning Toolkit developed was categorized as valid (3.30 for RPP and 3.35 for LKPD) and very practical, respectively, 82.6% and 85% (for RPP and LKPD). Meanwhile, based on the results of the test results of the mathematical reasoning ability test, it was found that 86.3% of students met the criteria for the success of the mathematical reasoning ability test > 80%, meaning that the guided discovery model-based learning device was very influential on mathematical reasoning abilities.
Co-Authors Ahmad Fauzan Arrum Meirisa Desyandri Desyandri Fadiah Elwijaya Feni Herlina Fitria, Yanti I Made Arnawa Marlina Marlina Nur Atikah Nur Hasannah Nurhizrah Gistituati Randika Irwa Risky Rindang Febriani Solfema Suherman Yerizon Yerizon