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All Journal AKSIOMA JURNAL PENDIDIKAN MATEMATIKA Jurnal Penelitian Pembelajaran Matematika Sekolah International Journal of Contemporary Studies in Education
HARI SUMARDI
BENGKULU UNIVERSITY
Education Languange, Linguistic, Communication & Media Mathematics Other

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Validitas Lembar Kerja Peserta Didik berbasis Penemuan Terbimbing pada Materi Prisma dan Limas bagi Siswa Kelas VIII SMP Negeri 12 Kota Bengkulu ELUL DIAN AGUSTIN; HARI SUMARDI; RUSDI RUSDI
JP2MS Vol 4 No 1 (2020)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jp2ms.4.1.82-91

Abstract

Penelitian ini bertujuan untuk mengetahui validitas Lembar Kerja Peserta Didik Berbasis Penemuan Terbimbing Pada Materi Prisma dan Limas bagi Siswa Kelas VIII yang memenuhi kriteria valid, baik dari segi bahasa, kontruksi maupun materi. Jenis penelitian ini adalah penelitian pengembangan (research and development) dengan menggunakan model pengembangan ADDIE yang dibatasi hanya tiga tahapan yaitu analyze, design dandevelopment. Penelitian ini dilakukan di SMP Negeri 12 Kota Bengkulu semester genap tahun ajaran 2017/2018.Kevalidan LKPD diujicobakan pada dua orang validator, yaitu dosen pendidikan matematika Universitas Bengkulu dan guru matematika Kelas VIII E SMP Negeri 12 Kota Bengkulu.Instrumen penelitian yang digunakan adalah lembar validasi bahasa, lembar validasi kontruksi dan lembar validasi materi. Hasil penelitian kevalidan lembar kerja peserta didik berbasis penemuan terbimbing pada materi prisma dan limas bagi siswa Kelas VIII SMP Negeri 12 Kota Bengkulu, termasuk dalam kategori valid, yaitu: aspek materi skor rata-ratanya 4,03; aspek kontruksi skor rata-ratanya 4,02 dan bahasa dengan skor rata-ratanya 3,98. Secara keseluruhan uji kevalidan dari ketiga aspek penilaian tersebut mendapat skor rata-rata yaitu 3,97. Jadi, dapat dinyatakan bahwa pengembangan LKPD berbasis penemuan terbimbing pada materi prisma dan limas telah memenuhi kriteria valid.
Students' Mathematical Problem-Solving Ability in Bengkulu Tabot Context Based on Polya Steps Hanny Nurhikma Prapti; Edi Susanto; Hari Sumardi
International Journal of Contemporary Studies in Education (IJ-CSE) Vol. 2 No. 1 (2023): March
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.668 KB) | DOI: 10.56855/ijcse.v2i1.222

Abstract

This study aims to analyze the ability to solve mathematical problems in the context of Tabot in Bengkulu state junior high school based on Polya's steps. This type of research is descriptive research with a qualitative approach. Methods of data collection in the form of a test about the ability to solve mathematical problems in the context of Tabot, interviews, and competencies. The results of this study found that the average of all mathematical problem-solving abilities of state junior high school students was 46.54% with sufficient criteria. The average student in the ability to understand the problem is 54.08% with sufficient comparison, the average in the ability to compose problems is 50.45% with sufficient withdrawal, the average problem solving is 43.53% with sufficient comparison, and the average at the conclusion is 34.15% with low criteria. It is suggested to teachers practice solving problem-solving questions.
IMPROVE STUDENT LEARNING OUTCOMES USING STUDENT WORKSHEETS BASED ON THE APOS MODEL ASSISTED BY GEOGEBRA Lilia Gina Febrila; Hanifah Hanifah; Hari Sumardi; Tria Utari
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 1 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (680.391 KB) | DOI: 10.24127/ajpm.v12i1.6876

Abstract

 The observation results showed that practicum activities and student learning outcomes in algebra courses were not optimal. Therefore, a learning model is needed that can make students carry out practical activities directly in class and can improve student learning outcomes  This study aimed to determine the increase in student learning outcomes through the use of Rational Function Student Worksheets based on the GeoGebra-assisted APOS model. The type of research carried out is Classroom Action Research (CAR). The research instrument was in the form of a learning achievement test sheet. The subjects of this study were first semester students of the Mathematics Education Study Program at Bengkulu University in 2022. The results showed that the average learning outcomes were 71.26 in cycle I and 82.05 in cycle II with a percentage of completeness in student learning outcomes of 82.05%. in cycle II. So it can be concluded that learning using rational function student worksheets based on the APOS model assisted by GeoGebra can improve student learning outcomes.Hasil observasi  menunjukkan bahwa kegiatan praktikum dan hasil belajar mahasiswa pada mata kuliah aljabar belum optimal. Oleh karena itu, diperlukan model pembelajaran yang dapat membuat mahasiswa melakukan kegiatan praktikum secara langsung dikelas dan dapat meningkatkan hasil belajar mahasiswa. Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar mahasiswa melalui penggunaan Lembar Kerja Mahasiswa fungsi rasional berbasis model APOS berbantuan GeoGebra. Jenis penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK). Instrumen penelitian berupa lembar tes hasil belajar. Subjek penelitian ini yaitu mahasiswa semester I Program Studi Pendidikan Matematika Universitas Bengkulu Tahun 2022.  Hasil penelitian menunjukan bahwa rata-rata hasil belajar yaitu 71,26 pada siklus I dan 82,05 pada siklus II dengan persentase ketuntasan hasil belajar mahasiswa sebesar 82,05%  pada siklus II. Sehingga dapat disimpulkan bahwa pembelajaran menggunakan lembar aktivitas mahasiswa  fungsi rasional berbasis model APOS berbantuan GeoGebra dapat meningkatkan hasil belajar mahasiswa.
Co-Authors Agus Susanta ELUL DIAN AGUSTIN Hanifah Hanifah Hanny Nurhikma Prapti Lilia Gina Febrila RUSDI RUSDI Tria Utari