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Implementation of an Integrated Problem Based Learning Model in Acid-Base Material Winda Lestari Saragih; Ratu Evina Dibyantini
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.56437

This research was carried out on the basis of the dominance of the use of lecture methods and the lack of use of learning tools in learning especially on Acid-Base material at SMAN 1 Purba. This research aims to (1) know significant influence between prior knowledge and LKPD on learning outcomes. (2) knowing the difference in learning outcomes between high initial knowledge and low initial knowledge. The population of this study were all class XI SMAN 1 Purba consisting of 3 classes by determining 1 class as the research sample, namely class XI-1 using purposive sampling techniques. This research uses multiple linear regression test and Independent Sample t-Test. Based on data analysis, values are obtained the average EPA is 78.24; 86.00; 72.62, average LKPD value is 78.82; 87.06; 74.12 and the average EHB value is 79.26; 88.97; 82.47. Observation data from the observation sheet the average value obtained was 82.06; 87.57; 82.50. Based on the multiple linear regression test, there is a significant influence between initial knowledge and LKPD on learning outcomes. Results Independent Sample t-Test There is a significant difference in learning outcome scores between students with initially high ability and students with low initial ability.

Pengembangan bahan ajar e-modul berbasis masalah terhadap kemampuan berpikir kritis siswa pada materi laju reaksi Ratu Evina Dibyantini; Sulastri
Educenter : Jurnal Ilmiah Pendidikan Vol. 2 No. 3 (2023): Educenter : Jurnal Ilmiah Pendidikan
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/educenter.v2i3.196

Penelitian ini bertujuan untuk memperoleh: bahan ajar e-Modul berbasis masalah yang telah memenuhi kriteria kelayakan isi, kelayakan bahasa, kelayakan penyajiam, dan kelayakan kegrafikan sesuai dengan Badan Standar Nasional Pendidikan (BSNP) dan untuk mengetahui apakah kemampuan berpikir siswa menggunakan bahan ajar e-Modul berbasis masalah lebih tinggi dari nilai KKM. Jenis penelitian yang digunakan adalah Research and Development (R&D) yang telah dimodifikasi sesuai kebutuhan. Populasi penelitian adalah siswa kelas XI SMA Negeri 1 Bandar, Perdagangan tahun Ajaran 2020/2021. Sampel ditetapkan dengan purposive sampling dengan mengambil satu kelas sebagai kelas eksperimen. Hasil penelitian menunjukkan: 1) e-Modul berbasis masalah pada materi laju reaksi yang dikembangkan telah memenuhi kriteria BSNP, dengan pengolahan data yang diperoleh: kelayakan isi = 3,69, kelayakan bahasa = 3,7, kelayakan penyajian = 3,62, dan kelayakan kegrafikan = 3,78 dengan kriteria valid dan tidak perlu revisi; 2) e-Modul berbasis masalah dapat meningkatkan kemampuan berpikir kritis siswa.

Pengembangan bahan ajar e-modul berbasis masalah terhadap kemampuan berpikir kritis siswa pada materi laju reaksi Dibyantini, Ratu Evina; Sulastri
Educenter : Jurnal Ilmiah Pendidikan Vol. 2 No. 3 (2023): Educenter : Jurnal Ilmiah Pendidikan
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/educenter.v2i3.196

Penelitian ini bertujuan untuk memperoleh: bahan ajar e-Modul berbasis masalah yang telah memenuhi kriteria kelayakan isi, kelayakan bahasa, kelayakan penyajiam, dan kelayakan kegrafikan sesuai dengan Badan Standar Nasional Pendidikan (BSNP) dan untuk mengetahui apakah kemampuan berpikir siswa menggunakan bahan ajar e-Modul berbasis masalah lebih tinggi dari nilai KKM. Jenis penelitian yang digunakan adalah Research and Development (R&D) yang telah dimodifikasi sesuai kebutuhan. Populasi penelitian adalah siswa kelas XI SMA Negeri 1 Bandar, Perdagangan tahun Ajaran 2020/2021. Sampel ditetapkan dengan purposive sampling dengan mengambil satu kelas sebagai kelas eksperimen. Hasil penelitian menunjukkan: 1) e-Modul berbasis masalah pada materi laju reaksi yang dikembangkan telah memenuhi kriteria BSNP, dengan pengolahan data yang diperoleh: kelayakan isi = 3,69, kelayakan bahasa = 3,7, kelayakan penyajian = 3,62, dan kelayakan kegrafikan = 3,78 dengan kriteria valid dan tidak perlu revisi; 2) e-Modul berbasis masalah dapat meningkatkan kemampuan berpikir kritis siswa.

Developing the Test Items Based on High Order Thinking Skills in Chemical Equilibrium Materials Using Rasch Model Ariyani, Ade; Dibyantini, Ratu Evina; Darmana, Ayi
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 1 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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

Development the Test Items Based on High Order Thinking Skills in Chemical Equilibrium Materials Using Rasch Model. Objectives:This study aims to develop HOTS (High Order Thinking Skill) based items on chemical equilibrium material using the Rasch model. Methods: The type of research used is research and development through the ADDIE model. Respondents in the study were 25 students of class XII at the Superior High School in North Sumatra, distinguished by gender and grade X. Findings: The test items developed consisted of 10 questions that had gone through the validation stage by experts and then tested and analyzed using the Winsteps software. Conclusion: Content validation obtained 100% fit indexed items; the reliability of the person category is sufficient and the item is in the good category with Cronbach α=0.72 (good); the value of separation person (1.27) is in the weak category and item (2.49) is in the good category; Item difficulty levels are sorted from very easy: medium: difficult: very difficult. Respondents with codes 02LO and 24LO (logit +4.36) are respondents with the highest ability, codes 18PR and 19PR (logit -1.97) are respondents with the lowest ability. Guttman Matrix Scalogram, two respondents have the potential to guess the answer and four respondents have the potential to commit fraud.Keywords: HOTS Items, Chemical Equilibrium, Rasch Model.DOI : 10.23960/jppk.v13.i1.2024.01

Implementation of an Integrated Project Based Learning Model for Generic Science Skills in Acid-Base Material Tisa Florensia Ginting; Ratu Evina Dibyantini
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i2.57148

This research aims to determine the effect of Evaluation of Prior Knowledge and Student Worksheets on Evaluation of Learning Outcomes and determine the difference in learning outcomes between high initial knowledge and low initial knowledge using the Project Based Learning model integrated with Generic Science Skills in Acid-Base material. This research has two independent variables, namely Initial Knowledge Evaluation and Learner Worksheet and one dependent variable, namely Evaluation of learning outcomes data. The population in this study were all class XI students of SMA Negeri 2 Kabanjahe consisting of 6 classes. The sample in this study was taken using a purposive sampling technique from 1 class, namely class. The instruments used are initial knowledge evaluation test instruments, learning outcome evaluation test instruments and Student Worksheets as well as non-test student observation sheets. Data were analyzed using multiple linear regression tests and Independent Sample T-Test. The results of data analysis show that there is a significant influence between the value of Prior Knowledge and Student Worksheets on learning outcomes and there is a significant difference in the value of learning outcomes between students whose initial abilities are classified as high and students whose initial abilities are classified as low.

IMPLEMENTATION OF AN INTEGRATED GUIDED INQUIRY LEARNING MODEL FOR GENERIC SCIENCE SKILLS ON ACIDS BASE MATERIAL Anisa, Indri; Dibyantini, Ratu Evina
Jurnal Ilmu Pendidikan Indonesia Vol 12 No 3 (2024): JURNAL ILMU PENDIDIKAN INDONESIA
Publisher : Master of Science Education Program, Postgraduate Program of Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jipi.v12i3.3991

Abstract: This study aims to determine the effect of prior knowledge evaluation and student worksheets on learning outcomes and to determine the differences in learning outcomes between high prior knowledge and low prior knowledge using the Guided Inquiry learning model integrated with Generic Science Skills on Acid Base material. This study uses a dual paradigm design with two independent variables and one dependent variable. The population in this study were all students of class XI MIPA SMA Negeri 1 Pantai Cermin consisting of 3 classes. The sample in this study was taken using a purposive sampling technique of 1 class, namely class XI MIPA 2 with a total of 34 students who were taught with the Guided Inquiry learning model integrated with Generic Science Skills using learning devices consisting of prior knowledge evaluation, teaching materials, student worksheets and evaluation of learning outcomes. The instruments used in this study were the initial knowledge evaluation test instrument, the learning outcome evaluation test instrument, student worksheets and the non-test instrument used was the student observation sheet. Data were analyzed using multiple linear regression tests and Independent Sample T-Test tests. The results of the data analysis obtained showed that there was a significant influence between the evaluation of prior knowledge and student worksheets on learning outcomes and there was a difference between students with high prior knowledge and students with low prior knowledge. Keywords: Guided Inquiry, Generic Science Skills, Acids Base Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh evaluasi pengetahuan awal dan lembar kerja peserta didik terhadap hasil belajar dan untuk mengetahui perbedaan hasil belajar antara pengetahuan awal yang tinggi dan pengetahuan awal yang rendah dengan menggunakan model pembelajaran Inkuiri Terbimbing terintegrasi Keterampilan Generik Sains pada materi Asam Basa. Penelitian ini menggunakan desain paradigma ganda dengan dua variabel independen dan satu variabel dependen. Populasi dalam penelitian ini adalah seluruh peserta didik kelas XI MIPA SMA Negeri 1 Pantai Cermin yang terdiri dari 3 kelas. Sampel dalam penelitian ini diambil dengan menggunakan teknik purposive sampling sebanyak 1 kelas yaitu kelas XI MIPA 2 dengan jumlah peserta didik 34 orang yang diajarkan dengan model pembelajaran Inkuiri Terbimbing terintegrasi Keterampilan Generik Sains dengan menggunakan perangkat pembelajaran yang terdiri dari evaluasi pengetahuan awal, bahan ajar, lembar kerja peserta didik dan evaluasi hasil belajar. Instrumen yang digunakan dalam penelitian ini adalah instrumen tes evaluasi pengetahuan awal, instrumen tes evaluasi hasil belajar, lembar kerja peserta didik dan instrumen non tes yang digunakan adalah lembar observasi peserta didik. Data dianalisis dengan menggunakan uji regresi linear ganda dan uji Independent Sample T-Test. Hasil analisis data yang diperoleh menunjukkan bahwa ada pengaruh yang signifikan antara evaluasi pengetahuan awal dan lembar kerja peserta didik terhadap hasil belajar dan ada perbedaan antara peserta didik yang pengetahuan awal tinggi dengan peserta didik yang pengetahuan awal rendah. Kata Kunci: Inkuiri Terbimbing, Keterampilan Generik Sains, Asam Basa

Implementation of an Integrated Problem Based Learning Model in Acid-Base Material Saragih, Winda Lestari; Dibyantini, Ratu Evina
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 6 No. 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.56437

This research was carried out on the basis of the dominance of the use of lecture methods and the lack of use of learning tools in learning especially on Acid-Base material at SMAN 1 Purba. This research aims to (1) know significant influence between prior knowledge and LKPD on learning outcomes. (2) knowing the difference in learning outcomes between high initial knowledge and low initial knowledge. The population of this study were all class XI SMAN 1 Purba consisting of 3 classes by determining 1 class as the research sample, namely class XI-1 using purposive sampling techniques. This research uses multiple linear regression test and Independent Sample t-Test. Based on data analysis, values are obtained the average EPA is 78.24; 86.00; 72.62, average LKPD value is 78.82; 87.06; 74.12 and the average EHB value is 79.26; 88.97; 82.47. Observation data from the observation sheet the average value obtained was 82.06; 87.57; 82.50. Based on the multiple linear regression test, there is a significant influence between initial knowledge and LKPD on learning outcomes. Results Independent Sample t-Test There is a significant difference in learning outcome scores between students with initially high ability and students with low initial ability.

IMPLEMENTASI MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) TERINTEGRASI KETERAMPILAN GENERIK SAINS (KGS) UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR TINGKAT TINGGI PADA MATERI TERMOKIMIA Naibaho, Adelia; Sinaga, Marudut; Sutiani, Ani; Mucthar, Zainuddin; Dibyantini, Ratu Evina
CHEDS: Journal of Chemistry, Education, and Science Vol 8, No 2 (2024)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v8i2.9113

Penelitian ini bertujuan untuk mengetahui pengaruh Evaluasi Pengetahuan Awal (EPA) dan Lembar Kerja Peserta Didik (LKPD) terhadap kemampuan berpikir tingkat tinggi siswa yang dinyatakan dalam bentuk Evaluasi Hasil Belajar (EHB) menggunakan model pembelajaran Project Based Learning (PjBL) terintegrasi Keterampilan Generik Sains (KGS). Penelitian ini dilaksanakan di SMA Swasta Padang Bulan Medan dengan populasi penelitian adalah seluruh siswa kelas XI MIA dan sampel dalam penelitian yaitu kelas XI MIA 1 yang diperoleh melalui teknik purposive sampling. Instrumen yang digunakan pada penelitian ini, terdiri dari; EPA dan EHB masing-masing sebanyak 20 butir soal serta LKPD sebanyak 10 butir soal. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang signifikan antara EPA dan LKPD terhadap kemampuan berpikir tingkat tinggi siswa. Selain itu juga terdapat perbedaan kemampuan berpikir tingkat tinggi antara siswa dengan EPA rendah dan siswa dengan EPA tinggi

Development of STEM-PjBL-Based Teaching Materials to Enhance Students' Science Literacy on Acid-Base Topic Amdayani, Susilawati; Dibyantini, Ratu Evina; Syafriani, Dewi; Dalimunthe, Makharany
Jurnal Pendidikan MIPA Vol 26, No 3 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i3.pp1289-1307

An essential skill for learning chemistry is science literacy, which includes attitudes toward science, the scientific method, application in practical settings, and conceptual comprehension. However, the previous research revealed that students’ science literacy among Indonesian undergraduate students is still low, especially when it comes to abstract and complicated concepts like acids and bases. The study aims to develop STEM-PjBl-based teaching materials on acid acid-base topic and evaluate their effectiveness in enhancing students' science literacy. The study employs the 4D development model. The product effectiveness test was conducted at the development stage using a quasi-experimental design in the form of a one-group pretest-posttest design. The research subjects were 90 chemistry education undergraduate students who took basic chemistry courses in the 2024/2025 academic year, consisting of 3 classes. Data was gathered by a science literacy test, validation sheets, and practicality surveys for lecturers. The validity of questionnaire responses was obtained by three experts' judgment using the kappa coefficient, the practicality questionnaire was also assessed using the kappa coefficient, while the validity of data on science literacy improvement was obtained through pre-test and post-test results. The results showed that the average kappa coefficient of expert validation of STEM-PjBL-based teaching materials is 0.88 (high validity). The practicality questionnaire produced an average kappa coefficient of 0.89 (high practicality). The effectiveness test obtained an average n-gain value of 0.65 (moderate), as evidenced by student involvement in designing projects to create soft drinks from natural ingredients through the PjBL model. The designing and evaluating scientific investigations indicator (n-gain 0.67) shows the most significant improvement because students were required to systematically design experimental procedures, including problem identification, variable determination, hypothesis formulation, planning tools, materials, and work steps following scientific principles. Keywords: teaching materials, STEM-PjBL, science literacy, acid-base.

Implementasi Media Video Pembelajaran dan Media Powerpoint Terhadap Aktivitas dan Hasil Belajar Siswa Menggunakan PBL pada Materi Larutan Penyangga Hutagaol, Rahul; Jasmidi, Jasmidi; Dibyantini, Ratu Evina; Jahro, Iis Siti; Darmana, Ayi
Jurnal Pendidikan Kimia Universitas Riau Vol. 10 No. 1 (2025): Januari: Jurnal Pendidikan Kimia Universitas Riau
Publisher : Program Studi Pendidikan Kimia, FKIP, Universitas Riau

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

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar dan aktivitas belajar siswa yang dibelajarkan dengan menggunakan model pembelajaran Problem Based Learning berbantuan media video pembelajaran pada materi larutan penyangga. Penelitian ini menggunakan dua sampel yang dipilih dengan menggunakan teknik purposive sampling yaitu terdiri dari kelas XI IPA 1 dan XI IPA 2 di SMA Negeri 1 Silimapunggapungga dan masing-masing berjumlah 34 siswa. Desain penelitian yang digunakan pada penelitian ini adalah Nonequivalent Control Group Design, yang melibatkan kelas eksperimen I dan eksperimen II. Instrument tes yang digunakan pada penelitian ini yaitu tes hasil belajar kimia siswa yang berbentuk pilihan ganda yang sudah divalidasi terlebih dahulu. Untuk uji hipotesis menggunakan uji Paired Sampel T-Test, uji Independent Sampel T-Test dan uji Korelasi antara hasil belajar dan aktivitas siswa. Dari hasil penelitian diperoleh pada uji hipotesis pertama dan kedua diperoleh nilai t!"#$%& > t#'()* yaitu sebesar 18,04>2,03 dan 7,04>2,03 yang menandakan bahwa peningkatan hasil belajar siswa yang dibelajarkan dengan menggunakan model pembelajaran Problem Based Learning berbantuan media video pembelajaran lebih tinggi dibandingkan menggunakan powerpoint pada materi larutan peyangga.Adapun hasil dan aktivitas belajar berkorelasi secara signifikan yang diperoleh dari nilai r!"#$%& > r#'()* yaitu 0,50 > 0,34.

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