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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
Damayanti, Puspita Ayu
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Education Mathematics

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Pengembangan Media Pembelajaran Matematika Interaktif Berbasis Powerpoint pada Materi Kerucut Damayanti, Puspita Ayu; Qohar, Abd.
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 10, No 2 (2019): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : Jurusan Matematika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Sema

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v10i2.16814

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran interaktif berbasis powerpoint pada materi kerucut yang valid dan praktis. Model pengembangan yang digunakan adalah modifikasi model 4D yang dikembangkan oleh Thiagarajan, yaitu pendefinisian, perancangan, dan pengembangan. Hasil analisa kevalidan menunjukkan bahwa media memenuhi kriteria valid dengan rata-rata skor 3,32. Hasil analisis kepraktisan menunjukkan bahwa media dinyatakan praktis dengan kriteria rata-rata skor hasil observasi kegiatan pembelajaran 3,83 dan skor hasil angket siswa 3,43. Berdasarkan hasil analisis tersebut, media pembelajaran interaktif berbasis powerpoint dapat dinyatakan valid dan praktis.This study aims to develop powerpoint-based interactive learning media on the material of cone. The development model used is the modification of 4D model developed by Thiagarajan, that is defining, designing, and developing. The results of the validity analysis showed that the media fulfill the valid criteria in average score of 3.32. The results of practical analysis showed that the media was practical in average score of observation result of learning activity 3.83 and score of student questionnaire result 3,43. Based on the results of the analysis, powerpoint-based interactive learning media was valid and practical.
Defragmentasi Struktur Berpikir Siswa Impulsif dalam Memecahkan Masalah Geometri Damayanti, Puspita Ayu; Subanji, Subanji; Sukoriyanto, Sukoriyanto
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol. 5, No. 3
Publisher : citeus

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Abstract

This study aims to describe the defragmentation process of impulsive student’s thinking structures in solving geometry problems. This research was conducted on two students of 9th grade of SMPN 1 Puncu. The research data were obtained throught the providing of MFFT and problem solving tests. The result of this research showed that the defragmentation of students mistakes in providing initial ideas for problem solving was done throught cognitive conflict, scaffolding, and disequilibration. Defragmentation to form knowledge schemes and bring up schemes that already owned to solve the problems were done throught disequilibration and level 2 of scaffolding (explaining, reviewing, restructuring). Defragmentation to practice students to do reflection was done throught level 1 of scaffolding (environmental provisions).
Co-Authors Qohar, Abd. Subanji Subanji Sukoriyanto