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Scientiae Educatia: Jurnal Pendidikan Sains
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
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Articles 9 Documents
Search results for , issue "Vol 9, No 1 (2020): June 2020" : 9 Documents clear
Guided-Inquiry of Green Chemistry-Based Experiments in Biodiesel Synthesis Risnita Vicky Listyarini; Fransisca Ditawati Nur Pamenang; Noer Kurnia Dewi
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6283

Abstract

The use of non-renewable energy sources such as fossil fuels is very contrary to the concept of sustainable development. The principles of green chemistry can be applied to laboratory work through experiments based on environmental issues such as energy. Biodiesel is an alternative fuel to replace fossil fuels which can be made through the process of transesterification of oils. This research aims to apply the principles of green chemistry in biodiesel synthesis experiments; designing and conducting thoughtful and efficient experiments; characterizing biodiesel products and knowing students' responses to green chemistry-based experiments in biodiesel synthesis. The results showed that the principles of green chemistry were successfully applied in the synthesis of biodiesel. Biodiesel products have a bright yellow colour, pH of 7, and density between 0.866-0.892 g/mL. Water contents range from 1.67-3.3, and acid numbers range from 0.69-4.3. 90/10 tests show the results between range 0.5-3% and kinematic viscosity from 4.195-4.995. Students showed a positive response of 75.36% in designing experimental procedures for greenchemistry-based biodiesel synthesis.
Student Discipline Towards Natural Science Learning at Secondary Schools in Muaro Jambi Regency Astalini Astalini; Dwi Agus Kurniawan; Nugroho Kurniawan
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6309

Abstract

Discipline towards science learning is defined as a habit that characterizes students in responding to nature and science object. This study aims to analyze the students' discipline toward science learning. The research using a quantitative approach, this study employed the use of the survey method. From  612 students, the Random Sampling technique was used to select the respondents. Thus, this study analyzed the data from 187 students of State Secondary Schools in Muaro Jambi Regency. The data obtained using questionnaires. The results of the study are based on the measurement of the indicators on the students' discipline in science learning. The findings show that in the first indicator, 69 % of students are categorized as very good. In the second indicator, discipline in joining science lessons, 35,8% of students are categorized as very good. In the third indicator, discipline in doing science tasks, 46% of students are categorized as good. In the fourth indicator, discipline in learning science at home, 47,1%  of students are categorized as fair. Based on these results, it can be concluded that the students’ discipline towards science learning is considered as positive.
Problem-Based Learning Supported with Experiment Media Based on the Internet of Things to Enhance the Students’ HOTS Ability Yeni Rima Liana; Suharto Linuwih; Sulhadi Sulhadi
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6452

Abstract

This study aims to analyze the feasibility and effectiveness of experiment media based on Internet of Things (IoT) to enhance the students' HOTS ability on thermodynamics law material. This Research and Development comprises of the following stages: (1) defining needs, (2) designing products, (3) developing products, and (4) disseminating products. Four expert lecturers and two physics teachers serve as the validator. The limited trial subjects consisted of six students of class XI MIPA SMAN 1 Pekalongan; the field test subjects consisted of 108 students who were randomly selected from all XI MIPA classes at SMAN 2 Batang, and the disseminating subjects were teachers of MGMP physics in Batang. The instruments used were expert validation questionnaires, teacher response questionnaires, student response questionnaires, and written tests. The results of the validation of media experts were 3.81 (very good), and material experts were 3.54 (very good). Meanwhile, the results of teacher responses were 3.92 (very good), and the results of student responses were 3.50 (very good). The effective contribution of the IoT-based experimental media to improve the ability of HOTS can be seen from the results of the Multivariate Test analysis on GLM based on the partial eta squared value of 85.9%. This shows that experiment media based on IoT is feasible and effective to enhance the students’ HOTS ability.
Developing STEM-Based Student Worksheet to Improve Students’ Creativity and Motivation of Learning Science Emi Fitrya Husna; Muhammad Adlim; Abdul Gani; Muhammad Syukri; Muhammad Iqbal
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6440

Abstract

The Student worksheet based on science, technology, engineering, and mathematics (STEM) has been prepared, validated, and tested on students at SMAN 5 Banda Aceh. The worksheet guided the students to design a salt-making tool with a sunlight-gathering mirror. The worksheet was developed using the ADDIE model of the research and development (R&D) method. The subjects of the study consisted of 31 students divided into some groups consisting of 6 participants for each. The students were given problems and examples of salt-producing tools using a sunlight-collecting mirror. The purpose of this activity was to let them observe and modify according to their creativity. Based on the assessment of the tool model produced by students, the gained score reached an average score of 91 (very good). After the learning process, the learning outcomes increased with an average of 42 to 70. The science learning motivation and creativity scores of the students after the implementation reached 76 (good) and 79 (good). 
Developing an Instrument of Performance Assessment to Measure Problem-Solving Skills of Senior High School Students in Physics Inquiry-Based Learning Alda Novita Sari; Undang Rosidin; Abdurrahman Abdurrahman
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.5654

Abstract

The assessment of students’ learning results has not been fully implemented. Whereas, the importance of assessing students is to find out the development of learning abilities in solving problems, but many obstacles are still faced by educators at SMAN (high school) 5, SMAN (high school)15, and SMAN (high school) 16 Bandar Lampung. This study aims to produce a valid product and determine the feasibility of construction, substance, and language. Sugiyono's research design development model was divided into (1) potential and problem, (2) data collection, (3) product design, (4) design validation, (5) design revision. The product is valid because the expert validator accepts the instrument in terms of both content and format, including instrument outline, learning scenario, rubric, and scoring guideline. The construction aspect score was 3.59 while the substance aspect score was 3.56, and the language aspect score was 3.58. The validation test result meets very sufficient quality criteria. Therefore, the product performance assessment instrument to measure problem-solving skills in physics inquiry-based learning of senior high school students can be used.
Science Laboratory Activities: A Profile of the Implementation and Constraints of Junior High School Natural Science Teachers Adam Malik; Hasniah Aliah; Seni Susanti; Mujib Ubaidillah; Ramdani Wahyu Sururie
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6517

Abstract

This study aims to describe the implementation and various obstacles of laboratory activities in junior high schools. The study employed the descriptive quantitative method. The subjects of the study were science teachers in 41 junior high schools representing 4 areas of the Natural Sciences Teachers' Consultative Assembly (MGMP IPA) in Jawa Barat Province. The instrument employed was a questionnaire. The technical analysis of the data was conducted by calculating the average percentage of each answer choice of each statement. This research reveals that 1) the students’ motivation for conducting laboratory activities is high; 2) the implementation of laboratory activities is conducted separately by employing theoretical classroom learning; 3) the source of guidance for laboratory activities is a model of cookbook laboratory; and 4) some obstacles in laboratory activities include insufficient laboratory spaces, less standardized and insufficient number of most equipment, the availability of manuals for laboratory activities, insufficient instructions to use laboratory equipment, and teachers’ difficulties in designing, implementing, and evaluating laboratory activities. It is concluded that in general teachers and students are very enthusiastic about conducting laboratory activities in science learning, but they still have several constraints, especially in the available infrastructures.
The Characteristics of the Morphological Genotypes of Local Sorghum [Sorghum bicolor (L.) Moench] from Buton Selatan Agus Slamet; Hisra Hisra; Rajab Rajab
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6120

Abstract

Local sorghum (Sorghum bicolor) is a cereal crop that the people of Bahari Village, Buton Selatan Regency still cultivate as an interlude crop of corn. Local sorghum (Sorghum bicolor) functions as genetic material and a gene donor to improve the crop’s characters in a plant breeding program. Therefore, it is necessary to take conservation steps to maintain the availability of sorghum germplasm collections. This study aims to characterize local sorghum (Sorghum bicolor) from Bahari Village, Buton Selatan Regency based on morphological characters (qualitative vegetative and generative parameters) and agronomic characters. This study was an explorative study that directly identified the genotypes of local Sorghum bicolor cultivated in the field. This study reveals six genotypes of local Sorghum bicolor; they are Labanda, Lapandewa, Lagadi, Wapinauri, Mbae, and Madea. The differences in sorghum genotypes can be more clearly identified in the generative phases, namely the symmetrical and pyramidal panicle shapes; the panicle density can be grouped into loose, slightly compact, and compact; husk colors vary from black, orange, grey, yellow, white, to red; the husk traits are categorized into short, slightly long, and very long; and the seeds are categorized round and round flat and white and brown. Meanwhile, the agronomic characters indicate that sorghum genotypes have long panicles; the weight of 100 seeds vary in categories from very low, low, to moderate; and one sorghum genotype (genotype Lagadi) has the fastest flowering and harvest ages than the other genotypes.
The Development of the Visual Digital-Based Practicum Manual for Microbiology to Support Students’ Communication Skills Risna Hani; Aminuddin Prahatama Putra; Dharmono Dharmono
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.5760

Abstract

Communication skills in a microbiology practicum can be developed by composing a practicum report and optimized by utilizing a practicum manual. The development of a practicum manual for microbiology is necessary to facilitate students' communication skills. Researchers have developed visual digital-based practicum manuals for microbiology to fulfill these needs. This research aims to describe the validity of a visual digital-based practicum manual for microbiology to support students’ communication skills. This research employed the Alessi & Trollip model. Product validity was conducted through the alpha test by involving three experts and employing expert validation instruments with non-test techniques to reveal the feasibility of material-based media visual aspects, and software engineering aspects. The results show that the media developed is completely valid on the material aspects, navigation aspects, and display aspects.
Developing Performance Assessment Instruments to Measure 4C Skills in Online Discussion Activities of Science Learning Yuyun Maryuningsih; Topik Hidayat; Riandi Riandi; Nuryani Rustaman
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.7500

Abstract

The 21st century learning utilizes information technology for various activities, including online discussion forums, to increase students’ learning activities and learning interaction. The 4C’s performance assessment instrument in the online discussion forum is not yet available, thus, a 4C’s assessment, including communication, collaboration, critical thinking, and innovative creative thinking skills, is necessary to assess students’ performance in the process of online discussion activities. This research aims to develop 4C’s performance assessment instruments in the online discussion process using the ADDIE model. Meanwhile, instrument development included analysis, design, development, implementation, and evaluation. The instruments were in the form of observation sheets and assessment rubrics. This study tested 4C’s observation instruments in 104 students in online discussion activities during four online discussion activities. Data analysis included construct validity and reliability of each instrument indicator. The data analysis reveals that the 4C’s performance instruments are useable to measure students’ 4C’s skills in online discussion forums.

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