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INDONESIA
BIOEDUKASI
Published by Universitas Jember
ISSN : 16933931     EISSN : 25800094     DOI : -
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Library & Information Science
Arjuna Subject : -
Articles 251 Documents
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The Effect of Mahogany Leaf Litter (Swietenia Mahagoni (L.) Jacq.) on The Quality of Organic Fertilizer Through Vermicomposting Wilda, Nur; Mudakir, Imam; Asyiah, Iis Nur
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.46977

Abstract

Mahogany leaf litter (Swietenia mahagoni (L.) Jacq.) has high levels of lignin and C/N ratio, sothe decomposition speed is longer and can cause accumulation of litter waste. The purpose of this research was to determine the effect of applying different amounts of mahogany (Swietenia mahagoni (L.) Jacq.) leaf litter on the quality of organic fertilizer through vermicomposting. This study used acompletely randomized design (CRD) with the amount of mahogany leaf litter in each treatment was 0 g, 100 g, and200 g. Vermicomposting was carried out for 4 weeks, then the results were compared with SNI 7763:2018 and analyzed using LSD. The results showed that the addition of different amounts of mahogany leaf litter had nosignificant effect on the levels of total-N, P2O5 , C-organic, and C/N ratio but had a significant effect on the levels of K2O, and weight produced through vermicomposting. The p3 treatment with a total of 200 gof mahogany leaf litter was the most significant composition in meeting the chemical and physical quality parameters of vermicompost. This is due to the ideal balance of the C/N ratio in the material, so that vermicomposting runs optimally.
Formulation, Stability Test and Antibacterial Activity of Banana Leaf Extract Liquid Soap (Musa sp.) against the Growth of Escherichia coli Wahyuningsih, Erpika Ambar; Khumaira, Annisa
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.47850

Abstract

Liquid soap is an important component in maintaining skin cleanliness. Good liquid soap is soap that contains natural antioxidants because it can protect the body from free radicals and prevent cell damage and is also antibacterial because it can prevent and kill pathogens. One source of easily available phytochemical compounds with antioxidant and antibacterial activity is banana leaves (Musa sp.). The aim of this research was to formulate physically and chemically stable banana leaf extract liquid soap and test the antibacterial effectiveness of banana leaf extract liquid soap with formulations of 0%, 1%, 3%, 5% and 7% against the growth of Escherichia coli. This research was carried out using Completely Randomized Design which included making extracts, phytochemical screening tests, organoleptic tests, hedonic tests, pH tests, homogeneity tests, foam stability tests, and antibacterial tests on Escherichia coli using the diffusion method (paper disc). Then statistical analysis of variance (ANOVA) was carried out to determine the differences in the five formulas. Integrating banana leaf phytochemical compounds into soap formulas produces products that are antioxidant and antibacterial. The best formula is at an extract concentration of 7% because it provides optimal antibacterial test results and meets SNI standards for foam stability.
The Analysis of Formative Assessment Needs in the Form of a Biology Comic Based on Problem-Based Learning to Train Critical Thinking Skills and Improve the Learning Outcome for Senior High School Students Rucitra, Bidari Intan; Sari, Murni Sapta; Rahayu, Sofia Eri
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.50539

Abstract

The objective of this research is to comprehend the need for formative assessment in the form of Biology comics based on the PBL learning model. This comic intends to train critical thinking skills and improve students’ learning outcomes. A needs analysis was carried out by distributing questionnaires to senior high school students at MAN 2 Kota Malang, SMAN 5 Malang, and SMAN 7 Malang. Questionnaires were also distributed to students freely via social media. Moreover, interviews were also conducted with Biology teachers in MAN 2 Kota Malang. Another supporting data was the critical thinking skill test. The questionnaire results indicated that 70% of students needed these comics. Besides, Biology teachers also had a positive response to the variety of formative assessments in the form of Biology comics. The supporting data for the critical thinking test also showed the low category of 49.01 out of a maximum score of 100. Thus, it can be concluded that senior high school students need a variety of formative assessments in the form of Biology comics to train their critical thinking skills and improve their learning outcomes.
Implications of Local Potential-Based STEM Learning Model on Student Creativity Sulaeman, Wiska Hera Sagita; Windyariani, Sistiana; Nurlathifah, Zulfa; Setiono, Setiono
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.52567

Abstract

This research is motivated by the low creativity of students in learning biology at school. The purpose of this study was to determine how the implications of ethnoscience-based STEM learning models on student creativity on excretory system material. This study used a quantitative approach, quasi-experimental method with non-equivalient control group design, in the selection of samples by purposive sampling. The instruments used were verbal and figural creativity tests, product creativity assessment and student response questionnaires to ethnoscience-based STEM learning models. The research subjects were junior high school students in grade VIII with 27 experimental class students and 27 control class students. The results showed that the ethnoscience-based STEM learning model implies student creativity, this is known from the results of hypothesis testing showing H₀ is rejected and Hₗ is accepted with the results of Sig (2-tailed) verbal creativity 0.000 and figural creativity 0.001 so that the data can be said to be significantly different. The implications of the learning model can also be seen from the N-Gain value of verbal creativity of the experimental class which is 0.65 and the control class is 0.48 while the N-Gain value of figural creativity of the experimental class is 0.63 and the control class is 0.45. The average student response questionnaire is 81.79% or in the very good category. The conclusion of this research is that there is an implication of ethnoscience-based STEM learning model on the creativity of students of one of the Sukabumi District State Junior High School.
Improving Critical Thinking Skills through Discovery Learning: Case Study at SMP Negeri 2 Central Kupang Djalo, Aloysius; Missa, Hildegradis; Ndukang, Sardina
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.49138

Abstract

Critical thinking skills, especially in science subjects, are insufficient because teachers only provide direct knowledge to students without giving students the opportunity to actively participate in learning. The aim of this research is to determine the influence of the Discovery Learning model towards the critical thinking skills of grade VII students at SMP Negeri 2 Kupang Tengah. This type of quantitative research uses a quasi experimental method. The research results show that the score of critical thinking skills of the students in experimental classes with an average posttest score of 80.46 higher than the pretest which is 50.04. Meanwhile, in the control class, the average pretest score was 45.21 and the average posttest score was 67.14. The results of the anacova test using the one-way anacova statistical analysis technique (one way-anacova) with the help of SPSS Version 23 obtained a probability value (sig) of 0.000 <from the set significant value of 0.05. Thus the null hypothesis (H 0 ) which states that there is no influence of the Discovery Learning model on students' critical thinking skills is rejected and the alternative hypothesis (Ha) which states that there is an influence of the Discovery Learning model on students' critical thinking skills is accepted. The conclusion of this research is that the Discovery Learning model influences the critical thinking skills of grade VII students at UPTD SMP Negeri 2 Kupang.
Profile of Concept Understanding and Scientific Argumentation Skills on Genetic Material of Grade XII MIPA Students of SMA Laboratorium UM Biruni, Iqbal Bilgrami; Suwono, Hadi; Muntholib, Muntholib
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.52064

Abstract

Scientific argumentation skills as an intellectual practice can involve students in constructing and criticizing scientific ideas related to science literacy. The purpose of this study is to find out the scientific argumentation ability of high school students with different conceptual understandings. This study was designed as a survey involving students in grade XII of MIPA SMA Laboratorium UM. The results show that the highest average value of understanding the concept of genetic material was 87,22 and the lowest average value was 69,00. Indicator of scientific argumentation "claims and warrants" have an average value of 67.33; the "counterargument" indicator is 84.89; the "supportive arguments" indicator is 63.75; the "evidence" indicator is 83.19. The most appropriate solution to improve students' scientific argumentation skills is to apply an innovative learning model that involves argumentative dialogue in the classroom. Argumentation Driven Inquiry (ADI) is an argumentation and inquiry-based learning model that can be used as an alternative to empower students' scientific argumentation skills. On the other hand, students with low conceptual understanding scores managed to achieve the category of excellent scientific argumentation: good, enough, less, very little. This condition shows the importance of implementing innovative and argument-inquiry-based learning.
Improving Higher-Order Thinking Skills-based Science Literacy Questions in Science Learning Using Reading to Learn Model Lahagu, Aperius; Harefa, Agnes Renostini; Zega, Novelina Andriani; Gulo, Hardikupatu
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.52026

Abstract

Science literacy is important for everyone to have a greater opportunity to adapt in life, especially in terms of mastering reading skills to improve a country's development. The aim of this study was to describe the improvement of science literacy using HOTS questions by applying the R2L model to science learning materials. This research is a quasi-experimental research with one group pretest-posttest design conducted in SMP Negeri 1 Mandrehe Utara. The results of this study showed that there was an increase from the average score of 68.48 (sufficient category) to 83.75 (very good category) and obtained an N-Gain value of 0.42 on moderate criteria. Science competence in explaining phenomena scientifically increased by 16.02, the competence of evaluating and designing scientific investigations increased by 13.54, and the competence of interpreting data and evidence scientifically increased by 16.67 and this competency is the competency that has the highest increase. The application of the R2L model using HOTS questions has given teachers the flexibility to adjust reading materials based on the abilities of students and the situation of science learning so that the improvement of science literacy can be realized.
Antibacterial Activity of Robusta Instant Coffee Powder Against Acidogenic and Aciduric Species of Streptococcus mutans Bacteria Lestari, Pujiana Endah; Susilawati, I Dewa Ayu; Harmono, Happy; Dewanti, I Dewa Ayu Ratna; Masari, Al; Nailufar, Khanun; Morauli, Fatricia
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.50812

Abstract

Streptococcus mutans is a major species that causes dental caries due to its acidogenic and aciduric properties. Coffee beans contain several compounds, such as caffeine, phenols, tannins, trigonelline, chlorogenic acid, and caffeic acid, which are known for their antibacterial properties. Robusta instant coffee powder is a stable product that is not easily contaminated with bacteria, fungi, and yeast. It is a zero-waste and soluble material. This study aimed to analyze the antibacterial activity of robusta instant coffee powder (RICP) against S. mutans. The antibacterial activity of RICP against S. mutans was tested using three antimicrobial susceptibility tests: 1) disk diffusion method, 2) minimum inhibitory concentrations (MIC), and 3) minimum bactericidal concentration (MBC). The results of the disk diffusion method test showed that the RICP concentration of 0.2 g/mL to 0.8 g/mL against S. mutans had an inhibition zone of 31.14 mm to 42.01 mm. MIC and MBC values of RICP against S. mutans were both 0.0313 g/mL. In conclusion, robusta instant coffee powder (RICP) demonstrates antibacterial activity against the acidogenic and aciduric S. mutans bacteria.
Morphological Characteristics and Economic Value of Mangroves (Rhizophora and Avicennia) in Penunggul Village, Pasuruan Regency, East Java, Indonesia Imamah, Sri Wahyu; Pujiastuti, Pujiastuti; Asyiah, Iis Nur
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.52565

Abstract

Mangroves are ecosystems with high productivity levels and functions from an ecological/biological, physical, and economic perspective. Mangroves have a high diversity of plant species. The morphological and anatomical adaptations of mangrove species are very relevant from an ecological point of view. Generally, the dominant plants in mangrove ecosystems usually come from Rhizophora, Avicennia, and Sonneratia genera. Indonesia is a country with the highest mangrove forest area in the world. Mangrove ecosystems spread across almost all islands, one in East Java, precisely in Penunggul Village, Pasuruan Regency. Can study the potential of the mangrove ecosystem in Penunggul village from an ecological and economic perspective. To explore information related to mangrove plant diversity in Penunggul Village with morphological observations of plants and compare with the literature. Can explore the economic value of mangroves in Penunggul Village by conducting interviews with people who utilize mangroves in terms of monetary value. The dominant mangrove plants found in Penunggul Village are R. mucronata, R. stylosa, A. alba, and A. marina. The community uses the economic potential of mangroves in seedlings, chip production, and buying and selling marine biota that live around mangrove ecosystems, such as oysters and crabs.
Morphometric Study of Cuora amboinensis in the Ex-Situ Conservation Area of Bengkulu University Hardiansyah, Akbari; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Sukarso, A.A.
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.47453

Abstract

The Southeast Asian box turtle, Cuora amboinensis, known locally as the “Batok Turtle” is one of the world's most endangered turtle species. Conservation is needed to protect this species from the threat of extinction. Conservation efforts are complex and involve multiple scientific disciplines. This research was conducted in the Ex-situ Conservation area of ​​Bengkulu University, to determine the morphometric variations of adult C. amboinensis and determine the differences between males and females based on body size as a conservation effort. The research subjects were 20 adults (8 men and 12 women) of C. amboinensis. Several morphometric measurements that have been carried out include head width, carapace length, carapace width, curved carapace length, curved carapace width, carapace height, plastron length, plastron width, length of the midline on all plastron scales (sugar, humerus, pectoral, abdominal, femoral and anal), tail length, tail thickness, and body weight. Next, a t test was carried out to determine the morphometric characteristics of male and female C. amboinensis. The results of the analysis show that there are significant differences. C. amboinensis males have greater carapace length, tail length and tail thickness than females. C. amboinensis females have greater carapace height and humeral scale diameter than males.

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