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Cocos Bio
Published by Universitas Hamzanwadi
ISSN : -     EISSN : 25274775     DOI : https://doi.org/10.29408/cob
Core Subject : Humanities, Health, Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Dentistry Education
Kurikulum biologi pada berbagai jenjang pendidikan; Biologi murni dan implementasinya dalam pembelajaran; Pembelajaran biologi dengan model inovatif pada berbagai jenjang pendidikan; Penelitian eksperimen, penelitian tindakan kelas, dan penelitian pengembangan dalam pembelajaran biologi; Hasil kajian Lesson Study bidang biologi pada berbagai jenjang pendidikan; Isu tentang program profesi guru dan implementasi kurikulum merdeka dalam bidang pendidikan biologi; Pendidikan lingkungan hidup
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 99 Documents
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Pengaruh Aplikasi Pupuk Organik Enrichment LOB 2.0 terhadap Total Populasi Mikroba Pada Tanah Marjinal di PT. Great Giant Pineapple Lampung Tengah Haholongan, Reynaldi Febriyan
Cocos Bio Vol 10 No 1 (2025): Cocos Bio, Jurnal Pendidikan Biologi
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i1.29470

Abstract

Soil fertility is a soil condition that can support plant growth properly. Soil fertility is strongly influenced by many factors, one of which is the microbial population in the soil. Microbial populations are important due to their important role in degrading complex nutrients into simpler nutrients to be utilized by plants and other soil biota. The application of fertilizers and plows is done to support microbial growth in marginal soils. The types of fertilizers used were P0 (compost + biochar 1.75%), P1 (compost with 10t/ha biochar application), P2 (compost + biochar 1.75% + vermicompost 1.5%), and P3 (compost + biochar 1.75% + vermicompost 1.5% added microbial enrichment). From this study, the results of Split Plot ANOVA showed that there was a significant effect on month 1 and 3 observations, both on fungi and bacteria. Treatments that had a significant effect were further tested with Tukey's HSD. The best treatment based on the comparison of the mean in the 1st month fungal observation is P3, while in the 3rd month fungus and bacteria is P0.
PENGEMBANGAN MEDIA PEMBELAJARAN POSTER BERBASIS PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS VIII MTs NW SUKAMULIA PADA MATERI SISTEM PENCERNAAN MANUSIA Ariandani, Nunung
Cocos Bio Vol 10 No 1 (2025): Cocos Bio, Jurnal Pendidikan Biologi
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i1.30728

Abstract

This study aims to: (1) Develop Problem-Based Learning (PBL)-based Poster Learning Media to Improve Student Learning Outcomes, (2) Determine the feasibility and validity of Problem-Based Learning (PBL)-based Poster Learning Media to Improve Student Learning Outcomes, (3) To determine the effectiveness of Poster-Based Learning Media Using Problem-Based Learning (PBL) in Improving Student Learning Outcomes. This development study employs the 4D model, which consists of four stages: Define, Design, Development, and Dissemination. The subjects of this study were subject matter experts, media experts, science teachers, and 20 students from MTs NW Sukamulia. Data collection techniques used questionnaires and tests that had previously undergone validity tests, reliability tests, difficulty level tests, and discrimination power tests. Based on the data analysis and discussion, the product is deemed suitable and valid for use in teaching and learning activities. This suitability is evident from the average suitability scores obtained: subject matter experts 3.6, media experts 3.6, science teachers 3.2, and student responses 3.6. These scores meet the criteria for good and very good. Furthermore, the validity of the poster learning media can be seen from the percentage of ideality from subject matter experts (90%), media experts (91%), science teachers (79%), and student responses (90%). Based on the percentage of ideality, the results obtained meet the criteria for valid and highly valid. Based on the average percentage for improving student learning outcomes, it falls into the very good category.
PENGARUH PENGGUNAAN MEDIA POSTER TERHADAP MOTIVASI BELAJAR DAN HASIL BELAJAR SISWA PADA MATA PELAJARAN BIOLOGI KELAS XI MA NW SUKAMULIA Ariandani, Nunung
Cocos Bio Vol 10 No 1 (2025): Cocos Bio, Jurnal Pendidikan Biologi
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i1.31203

Abstract

This study aims to analyze the effect of learning media in form of posters on students’ motivation and learning outcomes in biology subjects at MA NW Sukamulia. The study was conducted with a quasi-experimental design, involving two classes: experimental class XI A which used poster media and control class XI B which applied conventional methods. Data were collected through questionnaires and learning outcome tests. The results show that students’ learning motivation in the experimental class, with an average questionnaire score of 81.4 and a standard deviation of 3.82, is higher than the control class which obtained and average score of 68 with a standard deviation of 6.47. independent T-test showed T count 7.9970, greater than T table 2.0227, indication a significant increase in students’ learning motivation using poster media. In terms of learning outcomes, the average pre-test score of the experimental class is 35.25 with an increase in the post-test to 46, while the control class shows a pre-test score of 29.52 and a post-test of 32.14. independent T-test for learning outcomes revealed T count 2.3136, higher than T table 2.0210, indicating a significant increase in the learning outcomes of students in the experimental class. Overall, the use of poster media significantly increased students’ motivation and learning outcomes in the experimental class compared to the control class.
PENGARUH METODE TEAM ASSISTED INDIVIDUALIZATION (TAI) TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS XI SMA sarwati, Sarwati
Cocos Bio Vol 10 No 1 (2025): Cocos Bio, Jurnal Pendidikan Biologi
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i1.31319

Abstract

The purpose of this research was to determine the impact of the Team Assisted Individualization (TAI) method on the learning outcomes of eleventh grade students at SMA NW Tebaban for the 2024/2025 academic year. This study employed a pre- experimental one-group pretest-posttest design. The population of this research comprised all eleventh-grade students at SMA NW Tebaban for the 2024/2025 academic year, totaling 23 students. The research design used was a pre-test – post- test with treatment administered over a certain period, measuring with tests before (pre-test) and after (post-test) the treatment, and modifying the pre-test and post-test scores obtained from the students’ test results after the intervention. Data analysis employed an independent sample t-test, supported by the Shapiro-Wilk test conducted by the researcher. The hypothesis results indicated that tcount > ttable (0.9857 > 4.28), meaning Ho was rejected and Ha was accepted. Thus, it can be concluded that there is an impact of the Team Assisted Individualization (TAI) method on the learning outcomes of eleventh grade students at SMA NW Tebaban for the 2024/2025 academic year.
PENGARUH EFEKTIFITAS MODUL AJAR BERBASIS STEAM TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA sulispiana
Cocos Bio Vol 10 No 2 (2025): Cocos Bio
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i2.32355

Abstract

Abstract: This study aims to: (1) Develop a STEAM-based biology teaching module to improve students' critical thinking skills. (2) Determine the feasibility and practicality of the STEAM-based biology teaching module. (3) Determine the effectiveness of the STEAM-based teaching module. This development research uses the Borg and Gall model, which is carried out with 7 development stages, namely: initial information collection, planning, initial product development, small-scale trials, product revision, limited-scale trials, and product revision. The trial subjects in this study were material experts, design experts, biology teachers, 20 students from the small-scale trial, and 70 students from the limited-scale trial at SMAN 1 Pringgasela. The data collection technique was carried out using a questionnaire and the data were analyzed using quantitative descriptive analysis techniques. Based on the results of data analysis and discussion, it can be concluded that the STEAM-based biology teaching module product to improve students' critical thinking skills is feasible, practical, and effective for use during the learning process. This feasibility can be seen from the average feasibility percentage obtained from material experts 87.03%, design experts 97.08%, and biology teachers 90.97% so it is included in the very feasible category. Furthermore, the practicality of the teaching module can be seen from the average practicality score from student responses, which is 2.82 and is included in the practical category. Then the effectiveness of the teaching module can be seen from the average N-Gain obtained from the limited scale test of the experimental class 0.79 and the limited scale test of the control class 0.46. Based on the average N-Gain obtained, it has moderate criteria with a fairly effective level of effectiveness. Based on the results of the average percentage of STEAM-Based Student Worksheets per group, it shows that the STEAM-Based Student Worksheets to improve students' critical thinking skills are in the critical category.  Keywords: Teaching Module, Student Worksheet, Borg and Gall, Science, Technology, Engineering, Art, and Mathematics (STEAM), Critical Thinking.
Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Problem Based Learning (PBL) Untuk Meningkatkan Motivasi Belajar Siswa Sholihah, Aihsyatun Sholihah
Cocos Bio Vol 10 No 2 (2025): Cocos Bio
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i2.32554

Abstract

Abstract:This study aims to: (1) Develop Student Worksheets (LKPD) based on Problem Based Learning (PBL) to increase student learning motivation. (2) To determine the feasibility of Student Worksheets (LKPD) based on Problem Based Learning (PBL). (3) To determine the effectiveness of Student Worksheets (LKPD) based on Problem Based Learning (PBL). This development research uses the Bord and Gall model which is carried out with 5 development stages, namely: preliminary research/pre-survey, planning, development of models/initial products, initial product trials, revision of initial product trials. The trial subjects in this study were material experts I, material experts II (Biology Teachers) and design experts, 30 field trial students at MA Darussolihin NW Kalijaga. Data collection techniques were carried out using questionnaires and data analysis using quantitative descriptive analysis techniques. Based on the results of data analysis and discussion, it can be concluded that the Student Worksheet (LKPD) product based on Problem Based Learning (PBL) to increase student learning motivation is feasible, valid, and effective for use during the learning process. The feasibility of the Student Worksheet (LKPD) can be seen from the average feasibility score from Subject Matter Expert I (81.00%), Subject Matter Expert II (Biology Teacher) (85.00%), Design Expert (91.67%), and Student Response (81.17%). This score qualifies as highly feasible. Furthermore, the effectiveness of the Problem-Based Learning (PBL)-based Student Worksheet (LKPD) can be seen from the average N-Gain obtained in the main field test of 0.53. Based on the average N-Gain obtained, it qualifies as moderate with a fairly effective level of effectiveness. The main field test showed an increase in student learning motivation of 22.83%. Keywords: Student Worksheet (LKPD), Problem-Based Learning (PBL), Learning Motivation.
Pengaruh Model Pembelajaran Project-Based Learning (PjBL) Terhadap Kemampuan Berpikir Kreatif Siswa Safitri, Uliya
Cocos Bio Vol 10 No 2 (2025): Cocos Bio
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i2.32556

Abstract

ULIYA SAFITRI (2025). The Effect of the Project-Based Learning (PjBL) Model on Students' Creative Thinking Skills. This study aims to determine the effect of the project-based learning (PjBL) model on the creative thinking skills of eighth-grade students. This research is an experimental study conducted with a quantitative approach. This study used a quasi-experimental design with a nonequivalent control group design, using an experimental group and a control group. The study population was all eighth-grade students (phase D) of SMPN 1 Sukamulia in the 2025/2026 academic year. The research sample was determined using a simple random sampling technique. Phase 8D, the experimental class, used the project-based learning model, and phase 8B, the control class, used the lecture method. Data collection used a modified creative thinking ability test consisting of eight essay questions. Data analysis used an independent sample t-test for hypotheses. The results of the hypothesis show that t count > t table, namely (6.4441 > 2.0017), which means H0 is rejected and H1 is accepted. Therefore, it can be concluded that there is an influence of the Project Based Learning (PjBL) learning model on students' creative thinking abilities. Keywords: Project Based Learning (PjBL), Creative Thinking
Pengembangan Modul Biologi Berbasis Problem Based Learning (PBL) Untuk Meningkatkan Kemampuan Pemecahan Masalah Pada Materi Pemanasan Global Suhartina, Titin Sri
Cocos Bio Vol 10 No 2 (2025): Cocos Bio
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i2.32568

Abstract

based module in improving problem-solving skills. (2) To determine the effectiveness of the Biology module based on Problem Based Learning (PBL) in improving problem-solving skills. This development research uses the Borg and Gall development model which is carried out through 7 development stages, namely: 1. Preliminary information collection, 2. Planning, 3. Initial product development, 4. Small-scale trial, 5. Product revision, 6. Limited-scale trial, and 7. Product revision. The trial subjects in this study were material experts, biology teachers, design experts, 16 students for the small-scale trial, and 41 students for the large-scale trial at SMP N 2 Suela. The data collection technique used was questionnaires and the data were analyzed using quantitative descriptive analysis techniques. Based on the results of data analysis and discussion, it can be concluded that the Biology module product based on Problem Based Learning (PBL) to improve problem-solving skills is very valid and effective to be used during the learning process. This validity can be seen material experts I 82,6% and II 88,9%, from design experts obtained 87.4%, the practicality base on student responses was 2,75 with an effective category. The N-Gain acquisition of 0.61 is included in the effective category. Meanwhile, the control class obtained an N-Gain score of 0.50, which is included in the less effective category. The control class had lower test scores compared to the experimental class because the method or model used in the experimental class could improve students’ problem-solving skills. Keywords: Biology Module, Borg and Gall, Problem Based Learning (PBL), Problem-Solving Skills, Global Warming.
PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) TERHADAP HASIL BELAJAR SISWA KELAS XI SMA NEGERI 1 LENEK Lestari, Dian Sekar
Cocos Bio Vol 10 No 2 (2025): Cocos Bio
Publisher : UNIVERSITAS HAMZANWADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/cob.v10i2.32580

Abstract

Abstract : This study aims to determine the effect of the Project Based Learning (PjBL) learning model on the learning outcomes of grade XI students. The design used in this study is a quasi-experimental design with a nonequivalent control group design that uses two groups, namely the control group and the experimental group. The control group uses the conventional model while the experimental group uses the Project Based Learning (PjBL) model at SMA Negeri 1 Lenek. This design employed a pre-test before treatment and a post-test after treatment, so that the comparison results of the treatment would be more accurate. Based on the calculation of the average test scores, the pre-test and post-test scores of the experimental class were higher than those of the control class. The experimental class obtained a pre-test score of 37.42 and a post-test score of 43.33 with an increase of 5.91. In the control class, the pre-test score was 34.50, and the post-test score was 35.50 with an increase of 1. The normality calculation for the experimental class pre-test was 0.128 < 0.154, categorized as normal, and for the control class pre-test was 0.137 < 0.161, categorized as normal. The post-test calculation for the experimental class was 0.141 < 0.154, categorized as normal, and for the control class post-test was 0.119 < 0.161, categorized as normal. The homogeneity calculation of the pre-test for the experimental and control classes was 1.300 < 1.823, categorized as homogeneous data, and for the post-test of the experimental and control classes was 1.409 < 1.823, also categorized as homogeneous data. Furthermore, the hypothesis calculation for the experimental class obtained a T-count = 2.834 > T-table = 1.997, indicating significant data, while the control class obtained a T-count = 0.392 < T-table = 2.001, indicating non-significant data. Keywords : Project-Based Learning (PjBL), Student Learning Outcomes

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