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Keefektifan Model Pembelajaran Conceptual Chang Text dalam Mencegah Miskonsepsi Siswa pada Materi Larutan Penyangga Fauzannur Fauzannur*; Muhammad Hasan; Sulastri Sulastri
Jurnal Pendidikan Sains Indonesia Vol 10, No 4 (2022): OCTOBER 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (698.021 KB) | DOI: 10.24815/jpsi.v10i4.26575

Abstract

The low interest in learning chemistry is because there are still some students who have different conceptions, resulting in misconceptions. This study aims to determine the level of students' misconceptions about the buffer solution material in the experimental class and control class and the effectiveness of the conceptual change text (CCT) learning model in preventing students' misconceptions about the buffer solution material at SMAN 1 Seulimeum. The method used in this study is a quasi-experimental designed with a posttest only control group design. The sample selection technique was determined with certain considerations because there were only two classes in class XI IPA, so the two classes were used as samples in this study. So the research sample taken was class XI IPA1 and XI IPA2, totaling 30 and 34 students. The instrument used is in the form of multiple-choice diagnostic test questions. The data analysis technique used four tier. The results showed that the level of students' misconceptions on the buffer solution material in the experimental class and control class before applying the learning treatment obtained an average percentage of 31.18 and 31.33. The effectiveness of the CCT learning model can prevent students' misconceptions about the buffer solution material. The results of data analysis prove that after applying the CCT model students' misconceptions decreased with the misconception score only reaching 2.65. The results of the study can be concluded that the CCT model can prevent misconceptions better than the conventional learning model through the direct instruction model
Identifikasi Tingkat Pemahaman Konsep Siswa Menggunakan Tes Diagnostik Three-Tier Multiple Choice pada Materi Hidrokarbon Susti Vellayati; Cut Nurmaliah; Sulastri Sulastri; Yusrizal Yusrizal; Nurdin Saidi
Jurnal Pendidikan Sains Indonesia Vol 8, No 1 (2020): APRIL 2020
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.06 KB) | DOI: 10.24815/jpsi.v8i1.15715

Abstract

Pemahaman konsep adalah kemampuan seseorang dalam mengartikan, menjelaskan atau mengaplikasikan suatu hal berdasarkan pengetahuan yang telah dipelajari. Tes diagnostik adalah suatu alat yang dapat digunakan untuk mengetahui tingkat pemahaman konsep siswa. Tes yang digunakan pada penelitian ini adalah tes diagnostik three-tier multiple choice dan dikombinasikan dengan media CBT MOODLE. Pada penelitian ini telah dilakukan kajian untuk mengidentifikasi tingkat pemahaman konsep siswa pada materi hidrokarbon dengan menggunakan tes diagnostik three-tier multiple choice berbasis CBT MOODLE. Metode penelitian yang digunakan adalah metode deskriptif. Subjek penelitian terdiri dari 89 orang siswa kelas XI-MIPA SMAN 8 Banda Aceh. Pengumpulan data yang digunakan berupa 16 butir soal tes diagnostik three-tier multiple choice. Analisis data untuk mengetahui tingkat pemahaman konsep siswa menggunakan metode certainty of respons index (CRI).  Berdasarkan hasil penelitian diperoleh bahwa rata-rata siswa yang paham konsep terhadap materi hidrokarbon adalah 30,1% dan dikategorikan bahwa tingkat pemahaman konsep siswa gagal. Rata-rata siswa yang tidak paham konsep terhadap materi hidrokarbon sebesar 47,3%, siswa yang miskonsepsi sebesar 16% dan error sebesar 6,6%. Secara keseluruhan dapat dinyatakan bahwa siswa belum memahami materi hidrokarbon dengan benar sebesar 69,9%.
Development of Students Learning Module for Disaster and Environmental Knowledge Subject for Undergraduate Students of Universitas Syiah Kuala RM Teguh Prawira Atmaja*; Sulastri Sulastri; Nazli Nazli
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 5, No 1 (2021): MARCH 2021
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v5i1.18979

Abstract

Disaster education is an essential part of disaster mitigation steps in shaping character and building a culture of disaster preparedness. Knowledge on Disaster and Environmental (PKL) is a general course taught at the Undergraduate level at Syiah Kuala University. This research and development aim to produce valid, effective, and practical modules for PKL. The research and development model used in this study is an adaptation of the research and development steps proposed by Borg Gall, and the learning design model used in the initial product planning stage adapting the model proposed by Dick Carey. Expert validation and student readability test were followed to confirm the quality of the module. Three expert validators were involved, and 24 students were enrolled in several questionnaire-based approach of their perspective to the pre-and post-revision product module. The results of this study created a PKL learning module that has valid value (score 4.01-4.33), and the average results on the student readability test were in the good category (score 4.13-4.56). The final product that has been revised according to input and suggestions from the validator has the quality for exemplary utilization. 
Analisis Kadar Logam Timbal Dan Arsenik Dalam Tanah Dengan Spektrometri Serapan Atom M Nasir; Sulastri Sulastri; Michelia Mutiara Hilda
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 2, No 2 (2018): Desember 2018
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v2i2.12350

Abstract

Telah dilakukan penelitian tentang analisis logam berat timbal (Pb) dan arsenik (As) dalam tanah dengan menggunakan teknik spektrometri serapan atom. Penelitian ini bertujuan untuk menentukan kadar logam berat timbal dan arsenik dalam tanah kebun percobaan Fakultas Pertanian Universitas Syiah Kuala. Sampel pada penelitian ini yaitu tanah dari 3 kebun percobaan Fakultas Pertanian Universitas Syiah Kuala yang terdiri dari kebun percobaan 1, 2 dan 3. Sebagai pembanding menggunakan tanah dari kebun masyarakat dan tanah bebas pupuk dan pestisida. Destruksi sampel menggunakan pelarut HNO3 pekat. Pada suhu 175ºC pada tekanan 1 atm selama 26 menit, pengukuran kadar logam timbal dilakukan pada panjang gelombang 217,00 nm dan pengukuran kadar logam arsenik diukur pada panjang gelombang 193,70 nm dengan teknik Vapour Generator Hydride (VGH). Hasil penelitian menunjukkan bahwa pada ketiga lahan tanah kebun percobaan Fakultas Pertanian Universitas Syiah Kuala yaitu tanah kebun percobaan 1, 2, dan 3 tidak terdeteksi adanya logam berat timbal. Tanah pada kebun percobaan 2 dan 3 juga tidak terdeteksi adanya logam berat arsen. Tetapi terdeteksi pada tanah kebun percobaan 1 sebesar 1,6860 ppm (0,0001686%), kebun masyarakat sebagai pembanding yaitu sebesar 0,6607 ppm (0,00006607%) dan tanah kontrol yaitu sebesar 0,1822 ppm (0,00001822%). Mengacu pada nilai ambang batas standar dapat disimpulkan kadar logam ini masih dalam batas aman. 
Edukasi Bencana Melalui Syair Didong Uten Karya Ceh Sali Gobal dalam Pengurangan Risiko Bencana di Kecamatan Kebayakan Kabupaten Aceh Tengah Ditha Ramadhani*; Sulastri Sulastri; Muhammad Dirhamsyah
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 6, No 4 (2022): DECEMBER 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v6i4.28201

Abstract

Central Aceh district is an area that has a high risk index for landslides. Besides that, Central Aceh is also rich in local wisdom, one of which is didong which has many poems.This study aims to investigate the messages of local wisdom about disaster risk reduction in didong uten poetry and obtain an integration model of didong uten poetry in learning that can be accepted by teachers and students at high school. The research model used is the Etnografi research model by Spradley which broadly consists of five stages, namely: First, a) have an ethnographic project, b) ask an ethnographic question, c) collect ethnographic data, d) make ethnographic notes, e) analyzing ethnographic data. This study has validated media experts in the form of didong uten poetry and obtained an average score of 97.3% with the criteria "very feasible", material expert validation in the form of disaster education and disaster risk reduction obtained an average score of 66.6% with the "feasible". Based on the results of the implementation of the instrument, the final score on disaster education (knowledge) is 62.65, the value of disaster education (attitude) is 77.68, the final value of didong uten poetry is 53.98, and the final value of disaster risk reduction is 68.7. conclusion after conducting ethnographic research interviews from 5 resource persons is that didong uten poetry can be integrated into school subjects such as geography, sociology, Indonesian language, besides that didong uten poetry can also be extracurricular at school
Implementasi Pendekatan Science, Technology, Engineering, and Mathematics untuk Meningkatkan Kemampuan Literasi Sains dan Kreativitas Siswa Widya Astuti*; Sulastri Sulastri; Muhammad Syukri; Abdul Halim
Jurnal Pendidikan Sains Indonesia Vol 11, No 1 (2023): JANUARY 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v11i1.26646

Abstract

Current learning problems affect the low scientific literacy and creativity of students, so an approach is needed that is able to link science, technology, and society. The era of 21st century education and the development of the 2013 curriculum requires students to be creative and independent, so that they can improve better learning outcomes. This study aims to determine the differences in students' scientific literacy and creativity through the implementation of the STEM approach at SMP Negeri 2 Sigli. The research method used was pre- experimental with one group pretest posttest design. The research instrument consisted of scientific literacy questions, student creativity observation sheets and interview sheets. The results showed that the implementation of the STEM approach could improve students' scientific literacy with an average N-gain 0.74 in the high category. The average difference test results obtained a significance value of 0.000 0.05, meaning that there are differences in scientific literacy after the implementation of the STEM approach. This proves that the STEM approach can improve students' scientific literacy and student creativity as measured by three indicators. The three indicators measured are generating, planning and, producing, so that the scores obtained from the three indicators are included in the high category. The conclusion in this study is that students' scientific literacy and creativity increase through the STEM approach
TEACHER'S AND STUDENT'S NEEDS FOR MATHEMATICAL PROBLEMS IN DISASTER CONTEXT Nuzulidar Nuzulidar; Rahmah Johar; Sulastri Sulastri
Jurnal Infinity Vol 8 No 2 (2019): Volume 8 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v8i2.p239-246

Abstract

Indonesia is an archipelagic country lies on the Pacific Ring of Fire, resulting in the country being vulnerable to disaster. Teachers need to accustom students to manage natural disaster situation in a more logical approach. Therefore, it is necessary to develop mathematical problems in disaster contexts. This research is an early stage of developmental research. The purpose of this study was to analyze the needs of teachers and students of mathematical problems in disaster contexts. The participants in this study were a mathematics teacher and 53 Year 7 and 8 students at one of the public junior high school, located in a Tsunami affected area, in Banda Aceh. Data collection involved an open questionnaire, and data analysis was carried out descriptively. The results showed that the teacher often provided mathematical problems in learning but had never read mathematical problems in disaster contexts. Also, only three students had ever read such problems. The results also revealed that nearly half of the students (41.5%) liked to solve mathematical problems. Besides, both the teacher and 71.7% of the students agreed and were willing to participate in the learning process involving mathematical problems in disaster contexts. The results of the study also showed that the mathematical questions in disaster contexts were limited. Thus, it is necessary to develop mathematical problems in disaster contexts.
Penerapan Model Pembelajaran Time Token Terhadap Aktivitas dan Hasil Belajar Siswa pada Materi Faktor-Faktor Kesetimbangan Di Kelas XI SMAN 12 Banda Aceh Sisi Lialara Fitrah; Muhammad Nasir; Sulastri Sulastri
Jurnal Ilmiah Mahasiswa Pendidikan Kimia Vol 4, No 3 (2019): Juli 2019
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian yang telah dilakukan yaitu Penerapan Model PembelajaranTime TokenTerhadap Aktivitas dan Hasil Belajar Siswa pada Materi Faktor-Faktor Kesetimbangan di kelas XI SMAN 12 Banda Aceh. Penelititian ini merupakan jenis penelitian deskriptip dengan pendekatan kualitatif. Tujuan dari penelitian ini adalah untuk mendeskripsikan aktivitas, hasil belajar dan tanggapan siswa selama proses pembelajaran berlangsung. Sampel pada penelitian ini adalah kelas XI IPA-3SMAN12Banda Acehtahun ajaran 2018/2019 yang berjumlah 22 siswa yang terdiri dari 14 perempuan dan 8 laki-laki. Instrumen yang digunakan dalam penelitian ini yaitu lembar observasi aktivitas siswa, lembar soal tes siswa, dan lembar angket tanggapan siswa. Hasil observasi aktivitas siswa pada pertemuan pertama sebesar 76,04% dan pada pertemuan kedua sebesar 88,33%. Persentase ketuntasan belajar peserta didik sebesar 81,82%. Peserta didik yang memberikan tanggapan positif terhadap model pembelajaran yang digunakan adalah sebesar 77,27%. Kesimpulan yang diperoleh dari penelitian ini adalah aktivitas siswa pada penerapan model pembelajaranTime Tokenmengalami peningkatan antara pertemuan I dan pertemuan II. Nilai aktivitas siswa pertemuan I sebesar 76,04% dan pertemuan II sebesar 88,33%. Hasil belajar siswa mencapai ketuntasan secara klasikal setelah penerapan model pembelajaran Time Token dengan persentase sebesar 81,82% merupakan kategori baik. Serta Persentase nilai angket respon siswa sebesar 77,27 merupakan kategori baik.