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Science Education and Application Journal
Published by Universitas Islam Lamongan
ISSN : 26566672     EISSN : 26568365     DOI : -
Core Subject : Science, Education,
Chemistry Computer Science & IT Education Energy
The articles in SEAJ include developments and researches in Education, Science Education, include Chemistry, Physics, and Biology (theoretical studies, experiments, and its applications) and management education. More details about Focus and Scope, please check Focus and Scope. SEAJ also carries a Comments and Criticism section, which provides a forum for expressing different view points, comments, clarification, and correction of misunderstanding regarding topics in published papers. Readers of the journal are earnestly invited to contribute their ideas to this forum. Contributions for the Comments and Criticism section should be relatively brief, normally two to four manuscript pages, written in Indonesian and English, and will be published as rapidly as possible.
Arjuna Subject : Umum - Umum
Articles 64 Documents
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Analysis of Aroma Compounds in Tofu from Lembang, Sumedang and Garut West Java, Indonesia Assyifa Junitasari
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.365

Abstract

Tofu from Lembang, Tofu from Sumedang and Tofu from Garut are three types tofu that are produced in different places, but still close. Although made from the same raw material that is soy, every tofu will produce a different tofu, both in terms of taste, aroma, texture and suppleness. Differences in the type of flavour compouds used can also be a factor causing divergence of any tofu product. The characteristic of the tofu were determined by identifying the flavour compouds GC-MS, as well as organoleptic tests. To determine differences in compound-producing falvour in the tofu. The results extraction method was carried out on tofu samples using n-pentane as solvent then analyzed using GC-MS. Flavour compounds of all three types of tofu included into the ester group, alkenes and aldehydes. Organoleptic tests show that the panelists prefered. Tofu from Sumedang for test of colour appearance (82%), for the test texture panelists like Tofu from Garut (83%), for test of elasticity panelists prefered Tofu from Garut Lembang (75%), for taste test panelists prefered Tofu from Lembang (88%), panelists prefered Tofu from Lembang for flavour test (82%).
Development of an Assessment to Measure Science Process Skills for the Interaction of Living Things with Their Environment in Junior High School della oktavia
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.427

Abstract

This study aims to develop an assessment to measure science process skills in the interaction of living things with their environment. The research method used is a research and development method consisting of 8 steps, namely research and initial information collection, planning, initial product format development, small-scale trials, product revisions, initial trials, and final products. The trial subjects in this research and development are exper subjects, namely assessment experts, material experts and linguists, as well as the subjects of class VII SMPN students in Bengkulu City as product users. Data were analyzed descriptively qualitatively and quantitatively. Feasibility assessment by three validator experts developed on the assessment aspect of 89%, material aspect of 93%, and language aspect of 93%, overall was declared very feasible with an average of 92%. This shows that the assessment of science process skills to measure science process skills is stated to be very suitable to be used to measure the level of students' science process skills. The assessment developed to measure Science Process Skills (KPS) is the science assessment, where in the development of the science assessment it uses formative assessment because this assessment is given to every lesson and can be carried out on sub-subjects or each subject. In the development of this formative assessment, multiple choice tests were developed.
Diversity and Abundance of Macrozoobenthos in the Coastal of Puteri Sidokelar Lamongan Trisnani Alif
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.371

Abstract

Diversity and abundance of macrozoobentos in Puteri Beach Sidokelar Lamongan. Macrozoobenthos are organisms that live on the bottom of waters, and are part of the food chain whose existence depends on the population of organisms at lower levels. This study aims to analyze the diversity of macrozoobenthos found on the coast of Puteri, Sidokelar Village, Lamongan Regency. Macrozoobenthic sampling using the transect method measuring 5 mx 5 m. The identification of this sample was carried out at the Biology Laboratory. Billfath University Lamongan using journa  literature. The results of the study found 5 types of animals consisting of 4 types from the gastropod class 1 type from the class Bivalvia. Types of Cerithidea cingulata were the most common, with as many as 20 individuals. The least type was Gafrarium pectinatum which was found only in 1 individual. Diversity index (H ') in a moderate coastal ecosystem. The community is in a state of moderate stability or diversity with the number of individuals for each species is not uniform but no one is dominant (1 <H '<3).
Development of E-Book Learning Media Based on Problem Solving in the Material of the Human Digestive System Mahrawi Mahrawi; Umu Istikomah; Dwi Ratnasari
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.433

Abstract

Abstract : This research aims to develop e-book learning media using the professional Flip pdf application based on problem solving in human digestive system materials and to test the feasibility of e-book media developed through validation of Experts and to find out the effectiveness of teacher and student responses. Is a type of research development / Research and development that uses 4D models with stages (define, design, develop and desiminate) in this study only up to the stage of develope.descriptive qualitative research design. E-book as a free variable and human digestive system as a bound variable. The population in the study was 18 students of class XI AL-khairiyah High School 4 Cilegon, school year 2021/2022. Data retrieval and collection techniques are carried out by spreading questionnaires and interviews, data analysis techniques using interpretase scales and likert scales to test the feasibility of e-books that have been created. The results of the assessment of media experts, obtained a score of 82% and and expert test material obtained a value of 79% which falls into the category of feasible while the response test of the student response test obtained a score of 88% and the teacher board 81% with a very interesting category, based on the results of the study can be concluded that: e-book human suppression system based on problem solving is suitable for student use in biological learning system materials. Keywords:biological learning, e-book, human digestive system, problem solving 
Monoicado: Monopoly game modification for science learning on Light and Optical Instruments Ayu Try Damayanti; Dinar Maftukh Fajar; Muhammad Habibbulloh
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.432

Abstract

Monoicado (The Science Monopoly Game on Light and Optical Instruments) is an educational game based on a monopoly game developed with the aim of helping students understand the material, encouraging students to be more active, and providing a fun atmosphere in learning science subjects on the material of Light and Optical Instruments at the junior high school level. This paper aims to describe (1) the feasibility and (2) students' responses to the results of the media development. This study implemented the 4D research and development model proposed by Thiagarajan (define, design, develop, and disseminate) where the dissemination stage was not carried out. The research subjects involved 2 material experts, 2 media experts, 2 teachers as users, and 33 students from one junior high school in Bondowoso district, East Java. The data obtained were analyzed quantitatively and qualitatively . Quantitative analysis was carried out on the acquisition of validation scores given by experts, users, and students. Qualitative analysis was conducted on all responses to the media. The media developed is considered very valid in all three aspects of assessment (material, media, and practicality). Students' responses to the media are visualized in a wordcloud with the most comments: easy to understand, fun, and to train memory on the Light and Optical Instruments material.
The Effect of Callyspongia Biru Antibacterial Extract Concentration Towards the growth of Bacterial Isolates of Eucheuma cottonii Seaweed with Ice-ice Disease Feliksitas Angel Masing
Science Education and Application Journal Vol 3, No 2 (2021): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v3i2.434

Abstract

This research was conducted at the Biology Education Laboratory, Faculty of Teacher Training and Educational Sciences, Nusa Cendana University, with the aim of knowing the effect of the concentration of the antibacterial extract of Callyspongia biru on the growth of bacteria that caused Ice-ice disease. The method used in this study was an experimental method, with a Completely Randomized Design (CRD) consisting of 4 treatments (concentration of Callyspongia blue extract of 10%, 20%, 30% and 40%) with 3 times repetition. Therefore, the total treatment units were 12 units. The parameter that has been measured in this study was the diameter of the inhibition zone. The inhibition zone diameter data was then analyzed by using one-way ANOVA with the Tukay method.If Fcount  is greater than Ftable then it would be tested further using Honest Reality Difference test at 5% significant level. The result showed that the different concentrations of Callyspongia blue extract gave significantly different effects on the growth of bacterial isolates from seaweed Eucheuma cottonii with Ice-ice disease. At a concentration of 40%, Callyspongia biru extract showed the strongest average inhibition of 27.67 mm.
Development of Biology Practicum Guide to the Concept of the Digestive System in Developing Critical Thinking Students' Mahrawi Mahrawi; Diana Mulyani; Ika Rifqiawati; Mila Ermila Hendriyani
Science Education and Application Journal Vol 4, No 1 (2022): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v4i1.507

Abstract

The aim of the study is to develop a biology practicum guide on the concept of the digestive system to develop students' critical thinking skills, to determine eligibility, and to determine student responses to the biology practicum guide. The research method is the research and development (R&D) method by using the Sugiyono model. The research was conducted in October 2021 at SMAN 2 Serang City. The population in the study was 10 students from class XI SMAN 2 at Serang City High School, school year 2021/2022. Data retrieval and collection techniques are carried out by spreading questionnaires and interviews, while data analysis techniques using guttman scales and likert scales are used to test the feasibility of the biology practical guides that have been created. The validity assessment from the material expert for the Biology Practicum Guide received a score of 85% and the score from the media expert got a score of 86%. Both values are very feasible in the category. The result of the students' response test was a 98.6% score, which was very feasible in the category. Thus, it can be concluded that the Biology Practicum Guide on the concept of the digestive system was very feasible to use to develop critical thinking skills in students.
Activation of ZnCl2 and KOH Carbon from Bark of Salak Wedi as a Material for Making Supercapacitor Electrodes Aprillia Dwi Ardianti
Science Education and Application Journal Vol 4, No 1 (2022): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v4i1.541

Abstract

An activated carbon is a potential material that can be used as electrodes in super capacitors. It has a higher energy density than batteries and fuel cells, and a higher power density than conventional capacitors. This study was carried out by using activated carbon from the bark of salak wedi with various graded activators such as ZnCl2 and KOH. The physical characteristics of the activated carbon from the bark of salak wedi were analyzed using a Scanning Electron Microscope (SEM) to see its powder morphology. While, X-ray diffraction (XRD) is  used to examine the structure of the bark of activated carbon that  that has the potential to make electrodes of super capacitors . The results of SEM with graded activation had fewer pores, were not evenly distributed and tended to agglomerate compared to the activated carbon sample of salak bark which was activated once
Interactive Lecture Demonstrations (ILD) Model to Improve Students Understanding and Attitude towards Physics Akhmad Yani; Agus Setiawan
Science Education and Application Journal Vol 4, No 1 (2022): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v4i1.525

Abstract

ILD learning design has been implemented to get an overview of improving in learning heat of understanding and the changing of attitude towards physics to student between a class that implemented ILD model with assisted science magic and a class that implemented ILD model without assisted science magic. The research method used was quasi experiment with nonequivalent pretest-posttest control group design. Two class of tenth grade were involved in this research 28, 26 students respectively experiment class and control class. The improvement of learning heat of understanding was calculated by the formula N gain based on the test data on the adaptation of Hake normalized and the changing of attitude towards physics by using CLASS questionnaire. The result show that gain average normalized  on experiment class got 0.55 while on control class got 0.31. Based on different test the average on experiment class and control class at 95% confidence level (significant 0.05) this result show that ILD model with assisted science magic significantly improve materials of student understanding better than ILD model without assisted science magic. Based on student questionnaire, we found that the implementation of ILD model with assisted science magic result the changing of attitude towards physics better than ILD model without assisted science magic.
Using Job Sheet in Learning Ship Welding Techniques to Increase Learning Achievement of Class X Vocational School Students Sri Nur&#039;alifah
Science Education and Application Journal Vol 4, No 1 (2022): Science Education and Application Journal
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v4i1.548

Abstract

There is a need for media in the learning process to improve student achievement. The purpose of this study was to determine the model of using job sheets in learning welding techniques in class X TPK SMKN 2 Lamongan. And to find out the learning achievement of students after the job sheet model is implemented. The subjects of this study were students of class X TPK SMKN 2 Lamongan. This classroom action research procedure uses 3 (three) cycles. Each cycle consists of 3 (three) stages, namely: (1) planning; (2) action and observation; (3) reflection, according to the model developed by Kemmis and Mc Taggart. The instruments used to collect data are: (1) lesson plans; (2) pretest-posttest question sheets, (3) practice result assessment sheets (4) student practice observation sheets (5) learning management observation sheets; and (6) daily journal. The results showed that an increase in student learning achievement can be seen from the average value of student learning achievement starting from the pretest, cycle I, cycle II and cycle III, respectively 5.35; 6.78; 7.65; 7.92 with Gain (increase) in each successive cycle of 1.43; 0.87 and 0.27. The percentage of the average value of learning management for aspects of teacher activities increased by 13% from 68% in the first cycle to 81% in the second cycle and increased 5% from 81% in the second cycle to 86% in the third cycle.

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