Seminar Nasional Biologi-IPA dan Pembelajarannya, merupakan Seminar Nasional yang diinisiasi oleh Jurusan Biologi, FMIPA, Universitas Negeri Medan. Kegiatan Seminar ini berlangsung satu kali dalam satu tahun. Seminar ini merupakan wadah untuk berbagai wawasan terkait dengan keilmuan bagi para peneliti, pendidik maupuan praktisi. Seminar ini mencakup bidang ilmu : a. Pendidikan Biologi b. Pendidikan IPA c. Biologi Sains d. Ilmu Lingkungan e. Bioenterprenuer dan Eduprenuer Kami mengundang kepada seluruh insan akademis, untuk bergabung didalam kegiatan seminar ini. Hubungi Kami : Jurusan Biologi FMIPA Universitas Negeri Medan
PROFIL LITERASI SAINS PESERTA DIDIK PADA MATERI SISTEM PENCERNAAN MANUSIA DI KELAS VIII SMP NEGERI 1 PATUMBAK TAHUN PELAJARAN 2023/2024
This research aims to determine the profile of scientific literacy and map the scientific literacy of students in each class on material about the human digestive system based on the PISA 2018 framework in class VIII of SMP Negeri 1 Patumbak for the 2023/2024 academic year. The research was conducted February-April 2024. The research used descriptive research with quantitative methods and sampling techniques, namely a total sampling of 265 students. Data was collected using multiple choice test instruments. Descriptive statistical data analysis techniques. The research results show that the scientific literacy profile of students at level 3 is 50.19%. Mapping of science literacy abilities for class VIII-1 averaged 39.14 in the low category, VIII-2 averaged 36.67 in the low category, VIII-3 averaged 40.88 in the low category, VIII-4 averaged 43.55 low category, VIII-5 average 39.17 low category, VIII-6 average 42.80 low category, VIII-7 average 43.10 low category, VIII-8 average 39.33 low category, VIII-9 average 40.95 less category. It was concluded that the scientific literacy profile of students in class VIII of SMP Negeri 1 Patumbak averaged 40.63 in the poor category and class VIII-2 had the lowest average while class VIII-4 had the highest average of the 8 classes.
Hak Cipta (c) 2025 Murna Sari Br Sembiring, Halim Simatupang, Derlina, Derlina, Erika Nadapdap (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATERI GETARAN DAN GELOMBANG DI KELAS VIII SMP SWASTA PAHLAWAN NASIONAL
This study aims to determine the effect of Problem Based Learning model on student learning outcomes on vibration and wave material in class VIII of Pahlawan Nasional Private Junior High School, totaling 181 students. Then given different treatments experimental class with Problem Based Learning model and control class using conventional model. The average posttest results obtained by the experimental class were 68.53 and the control class was 56.31. Furthermore, the data was analyzed by normality test and homogeneity test. After the data from the pre-test and post-test were normal and homogeneous. Furthermore, the post-test data in the one- party t test obtained tcount > ttable (1.921>1.671). Then Ho is accepted and Ha is rejected. Thus the data shows that the Problem Based Learning model has an effect on student learning outcomes on vibration and wave material in class VIII of Pahlawan Nasional Private Junior High School. The calculation of the g factor (N-Gain) of 0.74 shows a high category which means it is effective and seen from the calculation results it can be concluded that there is an increase in student learning outcomes after using the Problem Based Learning model in class VIII of Pahlawan Nasional Private Junior High School.
Hak Cipta (c) 2025 Muthia Embun Khairafah (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH MODEL PEMBELAJARAN INKUIRI TERBIMBING TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA PADA MATERI SISTEM EKSKRESI KELAS XI SMAN 16 MEDAN T.P. 2024/2025
This study aims to determine the effect of guided inquiry learning models on students' critical thinking skills in the excretory system material of class XI SMAN 16 Medan Academic Year 2024/2025. This study uses a quasi- experimental design with a Pretest and Posttest Control Group Design. The determination of this sample was carried out using a simple random sampling technique. The sample used 2 classes, namely class XI-Pavo (experimental class) using a guided inquiry learning model and XI-Orion (control class) without an inquiry learning model. The instrument used was a test instrument to measure students' critical thinking skills. Data collection was carried out using interviews, tests, and documentation. The average pretest and posttest data for students' test results in the experimental class were 49 and 84.50 and the control class was 41.17 and 70.47. The data were analyzed by testing the hypothesis using the Independent Sample t-test using SPSS version 24.0. Based on the hypothesis test, the results of the study showed that there was an influence of the guided inquiry learning model on students' critical thinking skills in the excretory system material of class XI SMAN 16 Medan in the academic year 2024/2025. In the experimental class, the n-gain results were 0.77 with a high category and 0.57 with a medium category of n-gain results in the control class. It can be concluded that there is an influence of the guided inquiry learning model on students' critical thinking skills in the excretory system material of class XI SMAN 16 Medan in the academic year 2024/2025.
Hak Cipta (c) 2025 Najla Syakirah, Halim Simatupang (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PERBANDINGAN KETERAMPILAN PROSES SAINS DAN HASIL BELAJAR SISWA MENGGUNAKAN MODEL PROJECT BASED LEARNING DAN MODEL PROBLEM BASED LEARNING PADA MATERI SISTEM EKSKRESI SMPN 2 PERCUT SEI TUAN
This study aims to determine the comparison of students' science process skills using the Project Based Learning model and the Problem Based Learning model on the excretory system material of SMPN 2 Percut Sei Tuan and to determine the comparison of learning outcomes using the Project Based Learning model and the Problem Based Learning model on the excretory system material of SMPN 2 Percut Sei Tuan. The population of the study was students of class VIII of SMPN 2 Percut Sei Tuan. The sample of the study was students of class VIII-1 and VIII- 5 with a purposive sampling technique. This study is an experimental study with a Pretest-Postest Non- Equivalent Control Group Design. Data were collected using cognitive tests of learning outcomes and observation sheets of Students' Science Process Skills. Data were analyzed using a t-test at a significance level of 0.05. Based on the data analysis, it was obtained that tcount > ttable, namely 4.24 > 2.00. Thus, the criteria for tcount > ttable are met. This shows that ????0 is rejected, ???????? is accepted, meaning that there is a significant comparison of students' science process skills taught using the Project Based Learning (PjBL) model is higher than those taught using the Problem Based Learning (PBL) model on the excretory system material at SMPN 2 Percut Sei Tuan. While tcount > ttable, namely 6.68 > 2.00 so that ???????? is accepted, ????0 is rejected, meaning that there is a significant comparison of learning outcomes taught using the Project Based Learning (PjBL) model is higher than those taught using the Problem Based Learning (PBL) model on the excretory system material at SMPN 2 Percut Sei Tuan.
Hak Cipta (c) 2025 Naya Dyta Nafisyah, Ahmad Shafwan S. Pulungan (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR SISWA MATERI SISTEM PERNAPASAN MANUSIA KELAS XI IPA SMAN 1 GIRSANG SIPANGAN BOLON T.P. 2023/2024
This research aims to determine the effect of the Problem Based Learning model on student learning outcomes in the cognitive aspects of human respiratory system material in class XI Science at SMA Negeri 1 Girsang Sipangan Bolon T.P. 2023/2024. This research uses quasi-experimental research (Quasi Experiment) with a Pretest-Posttest Non-equivalent Control Group Design. The population in this study was all 130 students in class XI Science. Sampling used purposive sampling technique. Class XI IPA 1 consists of 30 people as the experimental class using the Problem Based Learning model and class XI IPA 4 totals 30 people as the control class using conventional learning. Data collection techniques use test instruments. From the research results, the average learning outcome in the experimental class in the form of a posttest was 79.33, while in the control class it was 55.5. Based on the results of the Independent Sample T-Test, a sig value of 0.000 <0.05 was obtained, which means that the Problem Based Learning model has an influence on student learning outcomes in the human respiratory system material.
Hak Cipta (c) 2025 Nella Charolin Sinaga, Abdul Hakim Daulae (Penulis) https://creativecommons.org/licenses/by-nc/4.0
GEOSITE SILAHISABUNGAN SEBAGAI SUMBER BELAJAR PADA MATERI KEANEKARAGAMAN HAYATI
This research aims to determine the types of Spermatophyta plants in Pulo Silalahi, Silahisabungan Geosite, as well as developing and evaluating a Booklet on the diversity of Spermatophyta plant types as a learning resource on Biodiversity material according to material experts, learning design experts, and graphic design experts, as well as knowing the teacher's response biology and class The booklet was developed using a 4D development model. The identification results showed that there were 57 species from 34 families of Spermatophyta plants at the Silahisabungan Geosite. Very good validation results from material experts, learning design experts, and graphic design experts, with percentages of 83.82%, 93%, and 94% respectively. Positive responses from teachers (97%) and students, with trials showing results of 97.2% (individual), 92.8% (small group), and 94.7% (large group). The effectiveness of the booklet which was declared suitable was tested on 30 students. The resulting N-Gain score is 0.72 in the high category. The t-test results show that this difference is statistically significant, with a calculated t- value of 7.157 and a P result of 0.00 (P < 0.05). The research results show that the Spermatophyta Diversity Booklet developed can significantly increase students' understanding of biodiversity and support an effective teaching and learning process.
Hak Cipta (c) 2025 Niken D.A.P. Silalahi, Binari Manurung (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH MODEL PEMBELAJARAN BERBASIS PROYEK TERHADAP HASIL BELAJAR DAN AKTIVITAS SISWA PADA SUBTOPIK KLASIFIKASI MAKHLUK HIDUP DI SMAN 1 TANJUNGBALAI
Some students haven’t implemented PjBL to develop cognitive, soft skills and character. PjBL is necessary implemented to shows a learning process where students are involved in working on a project where the results show that PjBL has more positive impact on students' academic results, such as students’ learning outcomes (cognitive) and activities (psychomotor). This study aims to find out the effect of PjBL model to students learning outcomes and activities on living things classification subtopic in class X at SMAN 1 Tanjungbalai. This research method is quasi experimental. The population in this study were all class X Students of SMAN 1 Tanjungbalai in 2024/2025 academic year. The samples are class X-4 as an experimental class and class X-6 as a control class. The sampling technique was determined by purposive sampling. Data were obtained by interview, observation, and giving pretest and posttest each totaling 30 questions. The data analysis technique uses t-test statistical analysis. Data results were obtained the sig (2-tailed) value of 0.000 < 0.05. It was found that there is an effect of PjBL model on student learning outcomes and activities. Implementation of this learning can increase student activities as seen from a score of 77 with active criteria.
Hak Cipta (c) 2025 Nindya Zayani Ekaputri, Khairiza Lubis (Penulis) https://creativecommons.org/licenses/by-nc/4.0
ANALISIS KEMAMPUAN LITERASI SAINS PESERTA DIDIK PADA MATERI EKOSISTEM DI KELAS X SMA SWASTA AN-NIZAM
The measurement of scientific literacy aims to determine the level of scientific literacy ability, so that efforts can be made to improve scientific literacy abilities to be better. This study aims to determine scientific literacy abilities in terms of competency and factors that influence scientific literacy. This study uses a quantitative descriptive research type. The sample in the study was taken using the total sampling technique. While the number of samples in this study was 49 students. Data collection techniques in the form of a scientific literacy test on ecosystem material based on the PISA 2018 framework and a questionnaire test of factors that influence scientific literacy. The results of the study showed that the average scientific literacy ability of class X students of SMA Swasta An-Nizam was at level 2 with a value of 52% at level 2. Of the three indicators of scientific literacy abilities based on competency aspects, 34.44% were in the low category. Factors that influence scientific literacy were found to be 42.85% in the science learning factor, in attitudes towards science with a percentage of 38.71% and school atmosphere factors 35.71%.
Hak Cipta (c) 2025 Nirmalita Ningsih, Halim Simatupang (Penulis) https://creativecommons.org/licenses/by-nc/4.0
OPTIMASI FAKTOR ABIOTIK TERHADAP ISOLAT BAKTERI TERMOFILIK UNTUK PRODUKSI AMILASE
Research on "Optimization of Abiotic Factors of Thermophilic Bacteria Isolates for Amylase Production" was carried out from December 2022 to February 2023 at the Andalas University Biotechnology Laboratory. This study aims to determine the optimum temperature, pH, agitation, and stability of the amylase enzyme from two thermophilic bacterial isolates, TUA-07. This study used a descriptive and an experimental method with a factorial completely randomized design (CRD) with two factors, namely temperature and pH, followed by gradual agitation. The results showed that the optimum temperature, pH, and agitation for isolate TUA-07 was 80°C at pH 6, with agitation of 125 rpm. Enzyme stability for isolate TUA-07 lasted up to 80% for 10 hours.
Optimization, agitation, Stability, Enzymes, Thermophilic Bacteria
Hak Cipta (c) 2025 Denny Bendrianis (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN MEDIA PEMBELAJARAN MOBILE LEARNING DENGAN APLIKASI ANROID MATERI BIOTEKHNOLOGI KELAS XII
This study aims to (1) produce learning media based on android mobile learning (2) find out the right learning media according to material experts, media experts, and users, (3) determine the effectiveness of learning media to improve high school student learning outcomes. This development research follows the steps developed by Addie which consists of five stages, namely Analysis, Design, Development, Implementation, and Evaluation. The initial product was validated by media experts (Following) and material experts and then revised. The next stage was a small group beta test carried out to three colleagues (postgraduate students too), and tested it on 13 users. Next is a summative test for 13 students. The results showed that (1) android-based mobile learning products were packaged in an android package (apk) format using the MIT APP Inventor software. (2) mobile learning products are feasible as learning media based on the results of the assessment stated that the material is 78% in the "good" category. (3) the effectiveness of the product as evidenced by the improvement of learning outcomes reached a mean pretest score of 62.27 and posttest of 83.18, with an n-gain of 20.9%.
Android mobile learning, Biotekhnology, ADIE development research
Hak Cipta (c) 2025 Mia Endang Sari Sinaga, Ashar Hasairin (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN BOOKLET KEANEKARAGAMAN DI MEDAN ZOO SEBAGAI SUMBER BELAJAR PADA MATERI KEANEKARAGAMAN HAYATI DI SMAS KARTIKA 1-2 MEDAN
Students at SMAS Kartika 1-2 Medan need interesting learning resources, especially on biodiversity material because this material requires examples of real objects. The decline in reading interest in high school students has also triggered researchers to develop booklets based on local potential and the surrounding environment with the title zoo field diversity booklet. The purpose of this research is to develop a learning resource in the form of a Diversity booklet in the field of the zoo on the subject of biodiversity. The type of research used is Research and Development (R&D) or development research that refers to the 4D development model (Define, Design, Development, Disseminate). The results of the study found that the booklet product as a learning resource was suitable for use based on the assessment of material experts and learning resource experts as well as the responses of teachers and students with the percentages of eligibility 91.4%, 91.6%, 85.22%, and 84.97%. . And the results of the study from a limited trial by class X MIA 2 SMAS Kartika 1-2 Medan were categorized as effective, with an N-Gain score reaching 0.61. so it can be concluded that the development of this learning resource is feasible or effective to use for learning on biodiversity material.
Booklet, Learning Resources, Biodiversity
Hak Cipta (c) 2025 Zahara Afifah Siregar, Wasis Wuyung W Brata (Penulis) https://creativecommons.org/licenses/by-nc/4.0
KEANEKARAGAMAN JENIS TUMBUHAN PAKU (PTERIDOPHYTA) DI KAWASAN WISATA KONSERVASI GAJAH (ELEPHANTIDAE) AEK NAULI, KABUPATEN SIMALUNGUN SUMATERA UTARA
This study will compare student learning results on protist content utilising the Jigsaw type cooperative learning model with the assignment learning model through Google Classroom in class X SMA Muhammadiyah 1 Medan. This study's sample was drawn at random. The research method employed is quasi- experimental research. The study's instrument was an objective exam that consisted of 30 multiple-choice questions with a total of 5 options. Pre-test and post-test research data were acquired. The data were evaluated using the independent sample t test, which yielded a result (2-tailed) of 0.00 where the value (2-tailed) was 0.05, indicating that Ho was rejected and Ha was accepted. The experimental class had an 84.03% success rate, whereas the control class had a 71.98% success rate. As a result, it can be inferred that the Jigsaw via Google Classroom has an influence on student learning outcomes in class.
Jigsaw, Result Study, Protista, Google Classroom
Hak Cipta (c) 2025 Nuri Andriani (Penulis) https://creativecommons.org/licenses/by-nc/4.0
INVENTARISASI DAN KARAKTERISTIK TANAMAN OBAT KELUARGA (TOGA) DI KECAMATAN MEDAN JOHOR
Abstract Family Medicinal Plants (TOGA) have long been used by the community as the first helper in sick families where the knowledge is passed down from generation to generation. The advantages of medicinal plants are very many starting from the easy way of planting, easy to get, the price is relatively cheap, can be processed by yourself and the side effects are relatively small, while the disadvantages of using medicinal plants, one of which is the weak pharmacological effect that makes handling slow.This study aims to find out the types of medicinal plants, benefits, as well as the characteristics of medicinal plants. The research location was conducted in Medan Johor District which was carried out from December 2021 to February 2022. Data collection in the form of observations, interviews and documentation in the form of photos and videos. The results showed that medicinal plants located in Medan Johor District consisted of 12 types of medicinal plants that are included in the 12th family. This type of medicinal plant comes from a different family. The processing method of the plant varies from boiling, applying, pounding, chewing, and grated. The parts of the plant used also vary from rhizomes, roots, stems, and leaves. Plants that are efficacious as medicine mostly contain essential oils that make the plant emit a characteristic aroma. Each plant has different characteristics that can be seen from the shape of the roots, leaves, stems, fruits, and flowers.
Inventory, characteristics, family medicinal plants
Hak Cipta (c) 2025 Lestari Laurencia Sidabutar, Dina Handayani (Penulis) https://creativecommons.org/licenses/by-nc/4.0
ANALISIS KEMAMPUAN BERPIKIR KRITIS DAN KREATIF MAHASISWA PENDIDIKAN BIOLOGI PADA PEMBELAJARAN DARING MATA KULIAH MIKROBIOLOGI
This study aims to determine students' critical and creative thinking skills in microbiology courses at the Biology Education Study Program, Universitas Negeri Medan. The method used in this research is descriptive quantitative. The population in this study was all students of the PSPB 2019 regular class, Universitas Negeri Medan. The samples were 70 students who were taken by random sampling. Data collection techniques for students' critical and creative thinking skills using essay tests and interviews via Whatsapp and Gmail. The results of this study indicate that biology education students' critical and creative thinking skills in microbiology courses have moderate criteria with a value of 59.78 for critical thinking skills and 57.97 for creative thinking skills.
Berpikir Kritis, Berpikir Kreatif, Mikrobiologi, Pembelajaran Daring
Hak Cipta (c) 2025 Febian Haganta Gibran, Hasruddin Hasruddin (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PEGEMBANGAN BUKU SAKU BERGAMBAR SEBAGAI MEDIA BELAJAR MANDIRI PADA MATERI STRUKTUR DAN FUNGSI JARINGAN TUMBUHAN DI KELAS XI SMA
This research is a development research that aims to determine the feasibility ofdeveloping pocket book learning media on the structure and function of plant tissue based on 1 lecturer of biology materialexpert, 1 person of media expert lecturer, 1 person of biology study teacher's response, and student response XI MIA 1 as many as 34 people, students XI MIA 2as many as 9 people. This type of research is research and development (R&D) using a 4D model. The instruments used in this study consisted of a material expert validation questionnaire, media experts, teacher responses from the field of study, and student responses to illustrated pocket books. The results of this study are a material expert assessment questionnaire, expressed by a percentage score of 81.04%, a media expert assessmentquestionnaire stated by a percentage scoreof 87.29%, a teacher responsequestionnaire in the field of studyexpressed by a percentage score of 96.66%, a student response questionnaire the individual test with a sample of 3 people is 89.44%, the responses of students in the small group test with a sample of 6 people are 92.22%, and the responses of students to the limited group trial with a sample of 34 people are 94.16%. If it is matched with the table of eligibility criteria, then this achievementscore is included in the very feasible criteria to be used as a medium for learning biology material on the Structure and Function of Plant Tissues in improving learning. An illustrated pocket book will be more perfect if an effectiveness test is carried out.
Learning Media, Picture Pocket Book, Structure and Function of Plant Tissue
Hak Cipta (c) 2025 Fitriana Akhwita Tambunan (Penulis) https://creativecommons.org/licenses/by-nc/4.0
DESKRIPSI KEMAMPUAN SCIENCE TECHNOLOGY ENGINEERING AND MATHEMATICS (STEM) MASA PANDEMI COVID – 19 SMPSIT JABAL NOOR MEDAN
The number of problems caused by the environment during the covid-19 pandemic. This is why a description of the students' STEM abilities is needed so that teachers know the mastery of technological attitudes, engineering, and students' mathematical abilities in solving problems of daily life. The type of research used is descriptive quantitative research. The data collection method used was the STEM ability test instrument. The research design used was a non-experimental design. This research was conducted in May 2022. Sampling was carried out by random sampling with a total population of 58 people. The results showed that the science abilities of class VII students were in the "high" category, the technological abilities of class VII students were in the "very high" category, the engineering abilities of class VII students were in the "medium" category, and the mathematical abilities of class VII students were VII is in the “low” category.
Description, Ability, STEM, Environmental Pollution.
Hak Cipta (c) 2025 Dea Shifa Fauzia, Hasruddin Hasruddin (Penulis) https://creativecommons.org/licenses/by-nc/4.0
ETNOBOTANI TUMBUHAN OBAT TRADISIONAL SUKU MANDAILING DI DAERAH ALIRAN SUNGAI SIMPANG TALAP KECAMATAN RANTO BAEK KABUPATEN MANDAILING NATAL
This study aims to publish and document belief systems, utilization practices, local knowledge and cultural importance values of traditional medicinal plant species of the Mandailing Tribe. Location The research was conducted in Manisak Village, Ranto Baek District, Mandailing Natal Regency, which was held from December 2021 to March 2022. Data was collected through semi-structured interviews, participatory observation, documentation, Collection of plant samples and the manufacture of herbarium. The data were analyzed descriptively qualitatively and quantitatively. The results showed that the Mandailing people used 44 species of medicinal plants which were included in 30 families. The highest family was Zingiberaceae 4% while the lowest family was Rutaceae 1%. The highest habitus of herb and the least habitus was liana. The practice of using plants by the Mandailing Tribe begins with meeting the datu, providing materials, materials in the form of plants obtained from the advice of the datu who understand the pulungan of medicinal plants, the method of processing is mostly boiled and the method of use is mostly by drinking. The medicinal plant species that has the highest ICS value is Eme (Oryza sativa) with a value of 71.
Ethnobotany, Traditional Medicine, Mandailing Tribe Belief System, utilization practices, local knowledge, Values of cultural importanc.
Hak Cipta (c) 2025 Ofy Asyma Matondang, Dina Handayani (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH PENDEKATAN PEMBELAJARAN TERHADAP PRESTASI BELAJAR SISWA KELAS X PADA TOPIK EKOSISTEM
This study aims to determine the effect of learning approaches (SETS, PBL and Conventional) on student learning outcomes. This study uses a quasi-experimental design. The pattern used in this study is Non- factorial Pre-test Post-test Control Group Design. The population of this study were students of class X SMAN 3 Bekasi, with a sampling technique using cluster random sampling, making students of class X-7, X-8, X-2 as samples of this study. The results of this study (Fcount = 5.72 > Ftable 1.95 (n = 26) for P = 0.007 smaller than P = 0.01 this indicates that there is a very significant effect on the provision of the SETS learning approach (Science, Environment, Technology, and Society), PBL (Problem Based Learning) and Conventional on student learning outcomes on ecosystem materials in class X SMAN 3 Bekasi in the academic year 2021/2022. The results of the Tukey test show that there is a significant difference between SETS and PBL classes (qcount > qtable; 4 ,64 > 3.39 we can conclude that student learning outcomes using the SETS approach are better than PBL and Conventional in Ecosystem learning in class X SMAN 3 Bekasi - West Java.
Learning outcomes, Learning approach, Ecosystem Material.
Hak Cipta (c) 2025 Johanes Manalu, Binari Manurung (Penulis) https://creativecommons.org/licenses/by-nc/4.0
GAMBARAN HISTOLOGI GINJAL TIKUS PUTIH (Rattus norvegicus) YANG TERPAPAR BENZO(a)PYRENE DAN DIBERI EKSTRAK ETANOL DAUN BANGUNBANGUN (Plectranthus amboinicus L. Spreng)
Polycyclic Aromatic Hydrocarbons (PAHs) are a class of chemicals that ubiquitous and toxic pollutants. They result from incomplete combustion of oil, gas, wood or other organic substances such as tobacco or baked goods. Benzo(a)Pyrene (BaP) is one of the PAHs components that can cause carcinogenesis. Bangunbangun (Plectranthus amboinicus L. Spreng) contains of flavonoids, quercetin, saponins and apigenin that is function as antioxidants, anticancer and immunostimulants. The purpose of this study was to look at the kidney histology of rat (Rattus norvegicus) exposed to Benzo(a)pyrene and Bangunbangun (Plectranthus amboinicus L. Spreng) leaves ethanol extract. This experiment used a completely randomized design (CRD) with four treatments and repeated six times. The treatments consisted of control group (KK), BaP group (KB), EEDB group (KE) and BaP and EEDB group (KBE). This research was conducted for 22 days,the BaP induction was given everyday 0.4 mg/rat and the ethanol of Bangunbangun leaves extract (EEDB) induced by 500 mg/Kg body weight one hour after BaP induction. Histopathology using the hematoxylin and eosin staining method. Histological observations of the kidneys is diameter of the glomerular. The data was obtained and analyzed by One Way ANOVA test and DMRT follow-up test. The results showed that ethanol of Bangunbangun (Plectranthus amboinicus L. Spreng) leaves extract was significantly able to improve the histological structure of the kidney in the form of a decrease in glomerular diameter (p≤0.05). This research concluded that the ethanol extract of Bangunbangun (Plectranthus amboinicus L. Spreng) leaves can repair the structure of rat kidney.
Bangunbangun, Benzo(a)pyrene, Kidney Histological.
Hak Cipta (c) 2025 Immanuel Hutagalung, Melva Silitonga (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS DISCOVERY LEARNING PADA MATERI ANIMALIA (SUB INVERTEBRATA)
The purpose of this study is to determine the feasibility level of Discovery Learning based Student Worksheets (LKPD) on Animalia (Sub Invertebrate) material and to determine the Classical Learning Completeness (KBK) of students in class X IPA 4 SMA Negeri 1 Tanah Jawa T.P. 2021/2022. This type of research is Research and Development (R&D). The development model use is 4D (defining, designing, developing, and disseminating). Data collection techniques were carried out by questionnaires (knowing the feasibility of LKPD according to material, learning, and design experts) and tests (knowing Classical Learning Completeness). The results showed that the LKPD based on Discovery Learning on Animalia (Sub Invertebrate) material had met the feasibility level based on the assessment of material experts (86.10%), learning experts (100%), and design experts (97.91%) all of which very decent category. The results of the teacher's response are categorized as positive (100%), as well as the responses of students (95.71%). Based on Classical Learning Completeness (KBK) it is categorized as complete (91.43%).
Development, Student Worksheets (LKPD), Discovery Learning, Animalia Materials (Sub Invertebrata)
Hak Cipta (c) 2025 Harti Dwi Mardiyah (Penulis) https://creativecommons.org/licenses/by-nc/4.0
KARAKTERISTIK MORFOLOGI ANGGREK TERESTRIAL DI HUTAN DESA BUKUM, KECAMATAN SIBOLANGIT, KABUPATEN DELI SERDANG
Orchid habitats are threatened all over the world. By the end of 2020 nearly 1,700 orchid species had entered the Global Red List (Hilmiah, et al). Morphological characteristics of orchids are needed for the preservation of orchid germplasm in Indonesia (Novitasari). This study aims to determine the types of terrestrial orchids in the Forest of Bukum Village. This study uses an exploratory method. The orchids found were identified and their morphology observed from root to fruit. Then proceed with observing its habitat. Types of orchids found 15 species of them. 7 species of which have pseudobulbs while others do not. The terrestrial orchid habitat in the Forest of Bukum Village has an average air humidity of 72.8%, an ambient temperature of 25.640C, a soil temperature of 220C and a soil pH of 6.2 with a sandy loam soil type.
Bukum Village Forest, terrestrial orchids, morphological characteristics, habitat..
Hak Cipta (c) 2025 Dwi Indriany, Wina Dyah Puspita Sari (Penulis) https://creativecommons.org/licenses/by-nc/4.0
ANALISIS KEMAMPUAN PEMECAHAN MASALAH BIOLOGI SISWA KELAS XI MIPA SMA NEGERI 14 MEDAN TAHUN AJARAN 2021/2022 PADA MATERI NARKOTIKA, PSIKOTROPIKA, DAN ZAT ADIKTIF
This study aims to determine the level of biological problem solving ability of students in class XI MIPA SMA Negeri 14 Medan on narcotics, psychotropic and addictive substances. The problem-solving ability step used as an indicator in this study is Polya's problem-solving ability step, namely understanding the problem, planning problem-solving solutions, implementing problem-solving solutions, and re-examining the solutions obtained. This research is a descriptive study with a qualitative approach carried out from February to May 2022 at SMA Negeri 14 Medan. The population of this study were students of class XI MIPA which consisted of 7 classes of 275 students with a sample of 70 students. The sampling technique used is purposive sampling. The instrument of this research is a matter of discourse that presents problems with essay questions to measure problem solving abilities. The results showed that the biology problem solving ability of students in class XI MIPA at SMA Negeri 14 Medan was classified as lacking with a percentage value of 38,73%. The results of each problem- solving step are the step to understand the problem with a percentage value of 44.8% including the sufficient category, the step to plan a problem-solving solution with a percentage value of 47% in the sufficient category, the step to implement the problem-solving solution a percentage value of 33.65% with the less category, and the step of re-examining the solution obtained a percentage value of 29.5% with the less category.
Problem solving ability, biology learning, narcotics material, psychotropic and addictive substances.
Hak Cipta (c) 2025 Salsa Dila Hakim Rangkuti, Uswatun Hasanah (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN E-MODUL INTERAKTIF BERBASIS MODEL STEcS UNTUK SISWA SMA KELAS X DI SMA NEGERI 13 MEDAN PADA MATERI PERUBAHAN LINGKUNGAN
This research and development was conducted to produce learning media in the form of STEcS-based interactive e-modules with the help of a professional flip PDF application that met the valid, practical, and effective categories. So that it is useful for students in increasing understanding of the material of environmental change, especially in the submaterial of environmental pollution and its conservation efforts. The research instrument used were lesson plans, content feasibility assessment sheets and the feasibility of presenting e-modules, pretest and posttest, as well as teacher and student assessment questionnaries. The results showed that: (1) the E-Module had valid criteria in terms of the feasibility of the content and the feasibility of presenting the e-module, namely (95.83% and 96.78%) with a very feasible category; (2) the E- Module has met the practical value of the results of teacher and student assessments, namely (87.53% and 88.45%) in the very practical category; (3) The E-Module meets the effective criteria. Based on the analysis of the value of student learning outcomes pretest and posttest obtained N-Gain of 0.69 (include in the medium category).
Interactive E-module, Flip PDF Professional, STEcS, Environmental Change
Hak Cipta (c) 2025 Bitara Hasudungan Silitonga, Binari Manurung (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PERBEDAAN PENINGKATAN HASIL BELAJAR SISWA DENGAN MENGGUNAKAN MEDIA VIDEO ANIMASI DAN MEDIA POWER POINT PADA PEMBELAJARAN IPA MATA PELAJARAN HUKUM NEWTON DI SMP
Penelitian ini bertujuan untuk mengetahui ada tidaknya perbedaan hasil belajar siswa yang diajar dengan menggunakan media animasi dan media Power Point serta perbedaan hasil belajar siswa dalam pembelajaran IPA pada topik Hukum Newton. Penelitian ini merupakan penelitian eksperimen yang dilaksanakan di SMP Negeri 8 Binjai. Populasi penelitian ini berjumlah 4 kelas dan secara purposive diambil 2 kelas yaitu kelas VII-2 dan kelas VII-3 sebagai sampel penelitian masing-masing 30 siswa. Kelas eksperimen I pembelajaran daring menggunakan media animasi, sedangkan kelas eksperimen II menggunakan media powerpoint. Data hasil belajar siswa diperoleh melalui soal tes objektif yang telah diuji validitas dan reliabilitasnya. Data tersebut diuji dengan menggunakan uji-t dua pihak. Hasil analisis perbedaan hasil belajar menunjukkan t hitung > t tabel (2,353>2,021), artinya terdapat perbedaan hasil belajar siswa pada kelas eksperimen I yang menggunakan media animasi dan eksperimen II yang menggunakan media Power Point. Peningkatan hasil belajar siswa yang signifikan antara yang menggunakan media animasi dengan yang menggunakan media Power Point, selisih peningkatan hasil belajar siswa sebesar 4%. Penelitian ini menemukan bahwa pembelajaran Hukum Newton di kelas VII SMP N 8 Binjai lebih baik menggunakan media animasi.
Animation Media, PowerPoint, improving learning outcomes
Hak Cipta (c) 2025 Ade MNur Anugrah, Masriadi Masriadi (Penulis) https://creativecommons.org/licenses/by-nc/4.0
IDENTIFIKASI MISKONSEPSI SISWA PADA KONSEP SISTEM PEREDARAN DARAH MANUSIA MENGGUNAKAN INSTRUMEN TWO-TIER MULTIPLE- CHOICE TEST DI KELAS XI SMA NEGERI 11 MEDAN
Penelitian ini bertujuan untuk mengidentifikasi miskonsepsi siswa tentang konsep sistem peredaran darah manusia dengan menggunakan instrumen Two-tier Multiple-choice Test pada kelas XI SMA Negeri 11 Medan. Metode penelitian yang digunakan adalah deskriptif kuantitatif. Dalam penelitian ini yang dideskripsikan adalah kondisi miskonsepsi siswa, agar diperoleh informasi atau gambaran yang jelas tentang faktor penyebab miskonsepsi yang dialami siswa berdasarkan wawancara. Dalam penelitian ini populasi sebanyak 252 siswa yang diambil secara simple random sampling, sehingga sampel yang diperoleh sebanyak 72 orang, dengan menggunakan teknik undian. Hasil penelitian ini menunjukkan rata-rata miskonsepsi yang dialami siswa kelas XI MIPA SMA Negeri 11 Medan pada konsep sistem peredaran darah manusia sebesar 43,47%, dikategorikan pada miskonsepsi sedang. Faktor penyebab kurangnya pemahaman konsep siswa kelas XI MIPA SMA Negeri 11 Medan sehingga terjadi miskonsepsi adalah berasal dari siswa itu sendiri, karena kurangnya minat siswa dalam belajar dan mencari sumber belajar sendiri pada materi biologi terutama pada konsep sistem peredaran darah manusia.
Miskonsepsi, Materi Sistem Peredaran Darah Manusia, Two-tier Multiple-choice Test.
Hak Cipta (c) 2025 Afika Nazurahani, Hasruddin Hasruddin (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGARUH PEMBELAJARAN STEAM TERHADAP HASIL BELAJAR IPAS SISWA SEKOLAH DASAR
Learning methods are one of the important elements that support the achievement of learning objectives. The STEAM method (Science, Technology, Engineering, Art, and Mathematics) is one of the methods that can be used in learning Ilmu Pengetahuan Alam dan Sosial (IPAS). The aim of this research is to determine the effect of using the STEAM learning method on elementary school students' science and science learning outcomes. The subjects in this research were fifth grade students at SDN 104208 Cinta Rakyat. This research is quantitative research with correlational methods. The data collection technique is a learning outcomes test in the form of a multifull choice and an essay. Data analysis techniques used include normality, homogeneity and hypothesis tesr. The results of the research show that there is an influence between the STEAM method on the science and science learning outcomes of fifth grade elementary school students.
Hak Cipta (c) 2025 Dessy Haqiki Wulandari (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN MEDIA AJAR SIFAT-SIFAT CAHAYA BERBASIS MICROLEARNING KELAS IV SEKOLAH DASAR
This research is motivated by changes in the independent learning curriculum. The change in the curriculum gave rise to various learning terms, one of which is Microlearning. With the existence of Microlearning-based learning, it realizes children's freedom in learning more. Microlearning based learning is often used with the Hy-Flex approach. In Microlearning-based learning, this research focuses on the material properties of light. The development of teaching media for the properties of light is still carried out synchronously, and there has been no development of teaching materials for the properties of light using Asynchronous media based on Microlearning. Therefore, it is necessary to develop the media product. The purpose of this research is to develop and produce asynchronous media products on the properties of light for class 4 elementary school based on micro-learning. The type of research used in this study is Research and Development (R&D The method used is the Borg and Gall development model. This research produced a media product in the form of a poster whose feasibility was tested by 1 material expert and 1 media expert. The value of media quality from material expert lecturers obtained a percentage of 86.45% belonging to the very good or very decent category, while media expert lecturers obtained a percentage of 61% belonging to the good or decent category. practicality test by obtaining a percentage of 91.96% very good category, and effectiveness test 88% very good category. This states that the media posters that have been made or produced can attract attention and are appropriate to be applied to elementary school students.
Hak Cipta (c) 2025 Viona Karmenita, La Ode Amril, Annissa Mawardini (Penulis) https://creativecommons.org/licenses/by-nc/4.0
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS WEBSITE DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI KEANEKARAGAMAN HAYATI
This study aims to produce a website-based learning media product with biodiversity topic to help students learn the topic to be more interesting. Using the ADDIE development model with 5 stages, namely Analysis, Design, Development, Implementation and Evaluation. In the process of implementing the website-based learning media using the flipped classroom learning model. The feasibility level was obtained from the validation process by media experts and material experts who received scores in the "Very Eligible" category with 89% and 93%, respectively. The responses from teachers and students to this website can be categorized as “Very Good” with 92% and 91% respectively. The effectiveness of the website on students' cognitive learning outcomes was tested on 33 students of class X IPA 4. The results of the research conducted showed that there were differences in the scores on the pretest and posttest students, with values of 41 and 81 respectively. The value obtained with an N-Gain score of 69% categorized as Medium.
Hak Cipta (c) 2025 Wulan Safitri, Abdul Hakim Daulae (Penulis) https://creativecommons.org/licenses/by-nc/4.0
FENOMENA FISIKA DALAM KEHIDUPAN SEHARI-HARI PHYSICS PHENOMENA IN EVERYDAY LIFE
Physics is the science that studies natural phenomena. By studying physics, we learn about various natural phenomena that are close to everyday life. Physics is a science that is closely related to human life. This study is related to the concept of physics in everyday life. The purpose of this study is to determine the role of physics in everyday life. This study uses a type of literature review or literature review. By using some previous studies, we can study some physical phenomena. Therefore, when you study physics, you are not only teaching concepts, but the relationship between concepts and the more important realities of everyday life. Basically, physics discusses a lot about natural phenomena and behavior patterns observed by humans and their application in life. The main purpose of studying physics is to help us acquire knowledge and scientific concepts, principles, skills and attitudes.
Hak Cipta (c) 2025 Teti Dian Sari, Malini Jahari, Lola Pratiwi (Penulis) https://creativecommons.org/licenses/by-nc/4.0
IDENTIFIKASI BAKTERI Salmonella sp. PADA POTONGAN DAGING IKAN TUNA YANG DIJUAL DI PASAR TRADISIONAL SUKARAMAI KOTA MEDAN
Tuna is one of Indonesia's leading fishery products because it has a very soft meat texture and high protein content. Therefore, fishery products are expected to be free from bacterial contamination, especially the pathogenic bacteria Salmonella sp. This study aims to see the presence of bacterial contamination of Salmonella sp. and the number of Salmonella sp. on samples of tuna cutlets sold at the Sukaramai Traditional Market, Medan City. This research method is qualitative, where the research results will be described descriptively. In this study, sample culture was carried out by scratching on Salmonella Shigela Agar (SSA) media, while the Total Plate Number (ALT) test used the pour method. The results showed that from 9 samples of tuna meat, 5 samples were positive for Salmonella sp. and 4 negative samples. In the ALT test the Total Plate Count (TPC) value showed 5 samples contaminated with Salmonella sp. meet SNI limits.
Hak Cipta (c) 2025 Riska Jannah Nasution, Marlinda Nilan Sari Rangkuti (Penulis) https://creativecommons.org/licenses/by-nc/4.0