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swistoro, Eko
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Penerapan Model Pembelajaran Cooperative Learning Tipe Talking Stick untuk Meningkatkan Aktivitas Siswa dalam Pembelajaran Tematik (PTK Pada Siswa Kelas IV D SD 71 Kota Bengkulu) mustika, fitri indah; swistoro, Eko
TRIADIK Vol. 16 No. 2 (2017)
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/triadik.v16i2.8865

Abstract

ABSTRACTThe thematic learning process that took place in grade IV D SD Negeri 71 Kota Bengkulu was less attractive and not in accordance with the characteristics of students who liked the game. This can be seen from the lack of enthuasiasm of students inlearning. This research aims to determine the increase of students activities in thematic learning after applying the cooperative learning model of talking stick in grade IV D students in the second semester of the 2017/2018 school year in SD Negeri 71 Kota Bengkulu with research subjects namely fourth grade students of SD Negeri 71 Kota Bengkulu totaling 26 students. This research was carried out in two cycles. Data collection techniques in this study were carried out using observastion sheets. The analysis used is descriptive analysis. The results of observing the acttivities of students in cycle I to cycle II showed an increase of 9.0 from 3,73 to 46,3 in category of being quite good.Key words : Talking stick learning model, student activity
PENGGUNAAN MEDIA PERMAINAN PUZZLE UNTUK MENINGKATKAN AKTIVITAS SISWA DALAM PEMBELAJARAN TEMATIK (PTK pada siswa kelas II B SD Negeri 71 Kota Bengkulu) Sulistia, Hikmah; Swistoro, Eko
TRIADIK Vol. 17 No. 1 (2018)
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/triadik.v17i1.11117

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan Media Permainan Puzzle Untuk Meningkatkan Aktivitas Siswa dalam Pembelajaran Tematik (PTK Pada Siswa Kelas II B SD Negeri 71 Kota Bengkulu).Subjek penelitian yaitu siswa kelas Siswa Kelas II B SD Negeri 71 Kota Bengkulu pada semester dua tahun ajaran 2017/2018 dengan siswa berjumlah 36 orang.Jenis penelitian ini adalah Penelitian Tindakan Kelas (Classroom Action Research).Teknik pengumpulan data yang digunakan adalah observasi aktivitas guru dan siswa, wawancara, dokumentasi, dan catatan lapangan. Berdasarkan observasi yang dilakukan aktivitas pembelajaran siswamenunjukkan bahwa: (1) Pembelajaran menggunakan puzzleyang tepat sangat berpotensi untuk menjadikan pembelajaran lebih menyenangkan dan bermakna sehingga dapat mengembangkan aktivitas siswa dalam pembelajaran, (2) Media pembelajaran Puzzle yang dapat meningkatkan aktivitas pembelajaran siswa. Hal ini hal ini terlihat dari hasil observasi yang di dilakukan oleh 3 observer menunjukan bahwa pada pertemuan siklus 1 rata-rata hasil observasi adalah 41 yang masuk dalam kriteria cukup, kemudian pada pertemuan siklus ke 2 rata-rata hasil observasi mengalami peningkatan menjadi 46 yang masuk dalam kriteria baik. Kata Kunci :Tematik, Aktivitas Siswa, Media Puzzle
Penerapan Model Discovery Learning Pada Materi Gelombang Elektromagnetik Berdasarkan Adsorpsi Congo Red oleh Silika Pasir dengan Metode Spektroskopi Yuliafitri, Sasti; Swistoro, Eko
PendIPA Journal of Science Education Vol 8 No 3 (2024): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.3.498-502

Abstract

This study intended to 1) explain the process of synthesis silica from Bengkulu beach sand; 2) describe pH, weight, contact time, optimum temperature, thermodynamics, isotherms, kinetics of the Congo Red and Remazol Red adsorption process of silica from Bengkulu beach sand using spectroscopic UV-Vis analysis methods. Based on the experiments, the results were 1) The synthesis of  silica from Bengkulu beach sand was carried out through the purification of the sample, the potassium silicate preparation (K2SiO3) by the alkali fussion method, gel making, and the silica gel preparation (SiO2). The optimum adsorption condition of Congo Red substance by silica occurs at pH 2 and the contact time is 40 minutes, while the Remazol Red substance occurs at pH 3 and the contact time is 60 minutes, each adsorbent weight 75 mg and 50 mg, and the optimum temperature 30°C. The thermodynamic parameters acquired are ∆G° and ∆H° are negative, while the ∆S° is positive, which means that the process of adsorption occurs exothermic and spontaneously irregularities towards the increased system. Isotherm adsorption is determined through the Freundlich isotherm model and follows pseudo-order kinetic model 2.
Co-Authors mustika, fitri indah Sulistia, Hikmah Yuliafitri, Sasti