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All Journal Jurnal Pendidikan Biologi Undiksha Jurnal Biologi dan Pembelajarannya (JBP) ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED Jurnal Florea Wahana-Bio: Jurnal Biologi dan Pembelajarannya Didaktika: Jurnal Kependidikan Bioscientist : Jurnal Ilmiah Biologi SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Al-Musannif
Ely Djulia
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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The Effect of Using Online Learning Platform on Academic Performance of Plant Morphology Course Veronika Turnip; Ely Djulia
Jurnal Pendidikan Biologi Undiksha Vol. 9 No. 1 (2022)
Publisher : Undiksha

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

Abstract

This study aims to find out the  effect of using online learning platform on academic  performance  of plant morphology course. The subjects in this study students majoring in Biology at Universitas Negeri Medan. This research is a study using is descriptive with a quantitative approach. The results showed that Students are declared capable of using online learning platforms indicated by the average results of internet searching 88% hypertext navigation 87%, content Evaluation 85% and Knowledge Assembly 81%. (2) Biology student understanding on the final test score is said to be in the very high category with an average of 89.9% and the mid-term grades are categorized as moderate with an average of 85.17%. (3) There is a correlation between student learning literacy and maser the concept through the online learning platform with a correlation of recount = 0.71297.  So students have been able to take advantage of use the online learning platform well in plant morphology course
Development Of Stem-Based Interactive Multimedia On Human Digestive System For Elementary School Liza Ayu Khairani; Ely Djulia; Wawan Bunawan
ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED Vol 13, No 2 (2023): ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED
Publisher : FIP Unimed

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/esjpgsd.v13i2.46189

Abstract

This study aims to determine the feasibility of using STEM-based interactive multimedia on human digestive system for elementary school. This research is a Research and Development which refers to the ADDIE model which consists of 5 stages, namely the analysis, design, development, implementation, and evaluation stages. Data collection techniques in this study were observation, interviews, and validation. This research was conducted in class V. The results showed the multimedia was valid in terms of media by 91,20%, in terms of material by 94.44%, and interms of instructional design by 93,33%. This multimedia is “Very Feasible” for participants touse in learning education. Furthermore, the results of the assessment from the teacher obtained 93% and limited trials by students obtained 94% which is in the very good category.Keywords: Interactive Multimedia, STEM, Elementary School.
Development of Scientific-Based Student Worksheets (LKPD) Using the Discovery Learning Model to Improve Science Skills of Sixth Grade Elementary Students Efa Rosalina Sitorus; Ely Djulia; Sumarno
Didaktika: Jurnal Kependidikan Vol. 14 No. 3 Agustus (2025): Didaktika Jurnal Kependidikan
Publisher : South Sulawesi Education Development (SSED)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58230/27454312.2816

Abstract

This research aims to describe: Validity and practicality of scientific-based LKPD using the Discovery Learning model. This research is development research using the ADDIE model which was carried out in class VI of SDN 173662. The research results obtained are: The module developed has been categorized as Valid, Practical and Effective. Based on the validation results of the material expert, the category was "Very Good" with an average percentage of 81.7%, the validation results of the language expert stated that the LKPD developed was in the "Very Good" category with an average percentage of 95%. Furthermore, the learning expert revealed that the LKPD developed was in the "Very Good" category with an average percentage of 86.7%, so it was concluded that the LKPD developed was very valid. Furthermore, based on teacher responses of 90% and student responses of 96%, the LKPD developed was practical to use. So it can be concluded that the student worksheet developed is valid and practical to use in class VI.
Pengaruh Problem Based Learning dengan Pendekatan STEM terhadap Kemampuan Pemecahan Masalah dan Sikap Ilmiah Siswa Materi Ekologi Mita Ramadhni; Ely Djulia
Jurnal Biologi dan Pembelajarannya (JB&P) Vol 12 No 1 (2025): APRIL 2025
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jbp.v12i1.25047

Abstract

Penelitian ini bertujuan untuk menginvestigasi efek Problem-Based Learning (PBL) dengan pendekatan STEM terhadap kemampuan pemecahan masalah dan sikap ilmiah siswa kelas VII pada materi ekologi. Penelitian ini menggunakan desain quasi-eksperimental dengan rancangan pretest-posttest kelompok. Teknik pengambilan sampel menggunakan simple random sampling. Instrumen penelitian dalam penelitian ini adalah tes esai kemampuan pemecahan masalah dan kuesioner sikap ilmiah siswa. Data dianalisis menggunakan uji prasyarat dan uji-t (independent sample t-test). Berdasarkan hasil analisis data, terdapat efek signifikan (sig(2-tailed)) < 0,05 dimana 0,000 < 0,05 pada kemampuan pemecahan masalah dan sikap ilmiah siswa di kelas eksperimental. Berdasarkan uji hipotesis, ditemukan bahwa terdapat efek model PBL dengan pendekatan STEM terhadap kemampuan pemecahan masalah dan sikap ilmiah pada materi ekologi untuk siswa kelas VII di SMP Muhammadiyah 01 Medan.  
Pengaruh Model Discovery Learning Terhadap Keterampilan Proses Sains Dan Hasil Belajar Siswa Pada Materi Makanan Dan Sistem Pencernaan Di SMP Imelda Medan Riski Hotma Oktaviani; Ely Djulia; Tria Gayatri
Wahana-Bio: Jurnal Biologi dan Pembelajarannya Vol 18, No 1 (2026): WAHANA-BIO EDISI MEI 2026
Publisher : Program of Biology Education, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/wb.v18i1.24529

Abstract

This study aims to determine the effect and correlation of applying the discovery learning model on students’ science process skills and learning outcomes regarding food and the digestive system at Imelda Private Junior High School in Medan. This study uses a quantitative approach Pretest-Posttest group design. The instrument used in this study was a learning outcome test consisting of 20 multiple-choice questions with a reliability value of 0.851. The data analysis techniques used were normality test using Shapiro Wilk, homogeneity test, hypothesis test using the right-tailed t-test, and N-Gain test. The results of the observation of science process skills obtained all indicators of science process skills have a very high category. The average learning outcome of the experimental class is 76.04. Higher than the control class which is 70.83. The results of the right-sided t-test with a significance level of α = 0.05, obtained tcount> ttable, namely 1.84> 1.65. The N-Gain value on learning outcomes is 62.45. The results of the study indicate that the application of the Discovery Learning model has a significant effect on science process skills and student learning outcomes on food and digestive system materials.
The Influence of the Problem Based Learning Model on Students' Critical Thinking and Metacognitive Abilities in Respiratory System Material for Grade XI at SMAN 3 Tebing Tinggi Chintya Novianti; Ely Djulia
Florea : Jurnal Biologi dan Pembelajarannya Vol. 12 No. 2 (2025)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/florea.v12i2.22794

Abstract

This study aims to determine the effect of the Problem Based Learning (PBL) model on Students' Critical Thinking Skills and Metacognitive Skills on Respiratory System Material in Grade XI. This study uses a Quasi Experimental Design method with a Pretest-Posttest group design. The sampling technique uses Purposive Sampling. The research sample consists of two classes, namely class XI-4 which uses the PBL model and class XI-5 which uses direct instruction learning, each class consisting of 36 students. The instruments in this study are multiple-choice tests of students' critical thinking skills consisting of 30 questions and a questionnaire of students' metacognitive skills consisting of 30 statements. Data were analyzed using prerequisite tests and t-tests (independent sample t-tests). Based on the results of data analysis, there is a significant effect (sig (2-tailed)) <0.05 where 0.000 <0.05 on students' critical thinking skills and metacognitive skills in the experimental class. Based on the results of the hypothesis test, it was found that there was an influence of the PBL model on students' critical thinking skills and metacognitive abilities in the respiratory system material of class XI SMA Negeri 3 Tebing Tinggi.
Efektivitas Model Kooperatif Tipe Two Stay Two Stray dan Think Pair Share dalam Meningkatkan Kecakapan Sosial Siswa Materi Sistem Reproduksi Farisah Ainina Harahap; Hasruddin; Ely Djulia
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.18493

Abstract

This study aims to examine the effectiveness of the Two Stay Two Stay (TSTS), Think Pair Share (TPS), and Conventional cooperative learning models in improving students' social skills in human reproduction. This study is quantitative in nature and quasi-experimental in design. The research design is a Posttest-Only Control Group Design. The population in this study was 156 students in grade IX MTsN 3 Padangawas, and the sample in this study was 78 people. Sampling was conducted using cluster random sampling, and the research sample consisted of 3 classes, namely TSTS, TPS, and Conventional classes. The data collection technique in this study used a questionnaire instrument. Data analysis used the Kruskal Wallis test. The results of the data analysis showed that the Asymp sig value was 0.000, indicating that there was a significant effect between the groups using the TSTS, TPS, and control (conventional learning) models on students' social skills. The mean rank of the TPS group was 51.06, followed by the TSTS group at 48.48, and the Conventional group at 18.96. This indicates that the TPS learning model has the most effective social skills value compared to the TSTS and Conventional groups.
DEVELOPMENT OF ETHNO-STEM BASED MODULES INTEGRATED WITH CREATIVE THINKING ON ELEMENTS, COMPOUNDS AND MIXTURES MATERIAL Erina Debora Mastauli Lubis; Ely Djulia; Samdinal Samdinal
SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Vol. 6 No. 1 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/science.v6i1.9227

Abstract

The limited relevance of science learning and the dominance of conventional teaching methods have led to low creative thinking skills among students. This study aims to develop an Ethno-STEM-based module integrated with creative thinking skills on the topic of elements, compounds, and mixtures. The development model used is the 4D model (Define, Design, Develop, and Disseminate), limited to expert validation, teacher and student responses. The module integrates local wisdom and cultural contexts with STEM learning stages, fostering fluency, flexibility, originality, and elaboration. The validation results show that the module meets the "very valid" criteria from material experts (Aiken’s V = 0.85), learning experts (0.84), media experts (0.81), and test instrument validators (0.83). Science teachers also rated the module very valid (0.89). Student responses reached an average of 89%, categorized as “very practical,” indicating that the module is attractive, easy to understand, culturally relevant, and effective in stimulating creative thinking. Thus, the developed Ethno-STEM module is highly feasible, practical, and relevant as an alternative teaching material in supporting the Independent Curriculum and enhancing students’ creative thinking. ABSTRAK Keterbatasan relevansi pembelajaran sains dan dominasi metode pengajaran konvensional telah menyebabkan rendahnya kemampuan berpikir kreatif di kalangan siswa. Studi ini bertujuan untuk mengembangkan modul berbasis Etno-STEM yang terintegrasi dengan kemampuan berpikir kreatif pada topik unsur, senyawa, dan campuran. Model pengembangan yang digunakan adalah model 4D (Definisikan, Rancang, Kembangkan, dan Sebarkan), yang dibatasi oleh validasi ahli, Guru dan respons siswa. Modul ini mengintegrasikan kearifan lokal dan konteks budaya dengan tahapan pembelajaran STEM, mendorong kelancaran, fleksibilitas, orisinalitas, dan elaborasi. Hasil validasi menunjukkan bahwa modul tersebut memenuhi kriteria "sangat valid" dari para ahli materi (Aiken’s V = 0,85), ahli pembelajaran (0,84), ahli media (0,81), dan validator instrumen tes (0,83). Guru IPA juga menilai modul tersebut sangat valid (0,89). Respons siswa mencapai rata-rata 89%, dikategorikan sebagai "sangat praktis," menunjukkan bahwa modul tersebut menarik, mudah dipahami, relevan secara budaya, dan efektif dalam merangsang berpikir kreatif. Dengan demikian, modul Ethno-STEM yang dikembangkan sangat layak, praktis, dan relevan sebagai bahan ajar alternatif dalam mendukung Kurikulum Mandiri dan meningkatkan pemikiran kreatif siswa.  
Pengembangan Buku Pengayaan Jenis Invertebrata di Pantai PandaratanTapanuli Tengah Berbasis Kontekstual untuk Meningkatkan Hasil Belajar Siswa Kelas X SMA: Development of a Contextual Enrichment Book Based on Invertebrate Diversity at Pandaratan Beach, Central Tapanuli to Improve Grade 10 Senior High School Students’ Learning Outcomes Marina Azzahra Nasution; Khairiza Lubis; Ashar Hasairin; Ely Djulia
Al-Musannif Vol. 8 No. 1 (2026)
Publisher : Madrasah Tsanawiyah DDI Cilellang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65046/msn.v8i1.52

Abstract

Utilizing local potential as a learning resource can create more contextual and meaningful learning. This study aims to develop a non-textbook on invertebrate Animalia diversity in Pandaratan Beach, Central Tapanuli based on contextual validity that is valid, practical, and effective in improving students' cognitive learning outcomes. The research method used is Research and Development (R&D) with the Four-D (4-D) model which includes define, design, develop, and disseminate. The research subjects consisted of expert validators, biology teachers, and grade X students of SMA Negeri 1 Tukka. Data were collected through validation sheets, response questionnaires, and cognitive learning outcome tests. The results showed that there were 31 invertebrate Animalia species used as the basis for developing non-textbooks. The validation results showed very high feasibility from material experts (95.3%), learning design experts (94.01%), and graphic design experts (84.51%). The teacher's response obtained 99.47% with a very good category, and the student's response was also very good. The effectiveness test showed an N-Gain value of 0.71 (high category), while the t-test obtained a significance of 0.000 (p < 0.05). This indicates that the use of contextual-based non-textbooks has a significant effect on improving students' cognitive learning outcomes. Thus, the developed product is declared valid, practical, and effective as a learning resource for Animalia.
Co-Authors Ashar Hasairin Chintya Novianti Efa Rosalina Sitorus Erina Debora Mastauli Lubis Farisah Ainina Harahap Hasruddin Khairiza Lubis Liza Ayu Khairani Marina Azzahra Nasution Mita Ramadhni Riski Hotma Oktaviani Samdinal Samdinal Sumarno Tria Gayatri Veronika Turnip Wawan Bunawan