Article Per Year (5 Year)
p-Index From 2020 - 2025
3.128
P-Index
This Author published in this journals
All Journal THABIEA (JOURNAL OF NATURAL SCIENCE TEACHING) JURNAL EKSAKTA PENDIDIKAN (JEP) Martabe : Jurnal Pengabdian Kepada Masyarakat Pelita Eksakta Best Journal (Biology Education, Sains and Technology) Bionatural: Jurnal Ilmiah Pendidikan Biologi Indonesian Science Education Research (ISER) Jurnal Penelitian Sains dan Pendidikan (JPSP) SEMESTA: Journal of Science Education and Teaching Jurnal Ilmu Pendidikan Indonesia UNIVERSE : Journal of Science Education Teaching and Learning
Aristo Hardinata
Department Of Science Education, Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Mathematics Physics Public Health Social Sciences Other

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search
Journal : Indonesian Science Education Research (ISER)

 1 
SURVEY ON THE EFFECTIVENESS OF ONLINE LECTURES DURING COVID-19 PANDEMIC: METHODS AND DIFFICULTIES Aristo Hardinata; Halim Simatupang; Fatin Hanifa; Abdul Latip; Shelly Efwinda; Relsas Yogica
ISER (Indonesian Science Education Research) Vol 2, No 2 (2020): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.512 KB) | DOI: 10.24114/iser.v2i2.22223

Abstract

This study aims to describe the effectiveness and method of lectures that took place during the Covid-19 pandemic. The Covid-19 pandemic requires all aspects of life to adapt, including in the field of education. This research is a descriptive quantitative study with a simple survey method using an instrument in the form of a google form which was designed to find out what students and lecturers think about lectures during the Covid-19 pandemic. The opinion in question was an opinion about the method or media used as well as the difficulties faced in the implementation of online lectures during the pandemic. This study used a purposive sampling technique, namely 5 universities in Indonesia consisting of 200 lecturers and 200 students. All respondents were asked to fill out an online questionnaire in the form of a google form designed to find out the methods or media used in lectures as well as the difficulties faced in using the media. The survey results show that the combination of media that was mostly used by lecturers and students in lectures is Whatsapp Group, Zoom Meeting, campus E-Learning Website, and Google Classroom. The majority of difficulties experienced by lecturers and students in online implementation are the uneven quality of internet connections. Lecturers find it difficult to psychologically assess students who are attending lectures. Lecturers cannot ensure the seriousness of students in the lecture process. In addition, the lecturer also feels that it takes a lot of time in the matter of using the application or media technically, so it is quite disruptive to the course of lectures such as the slow pace of learning media and the length of time required for students to join in the meeting. Lecturers and students still consider online lectures to be ineffective
THE EFFECT OF DISCOVERY LEARNING MODEL ON SCIENCE LITERACY SKILLS OF ECOLOGICAL MATERIAL AT SMP NEGERI 1 DELITUA Riski Aulia; Aristo Hardinata
ISER (Indonesian Science Education Research) Vol 6, No 1 (2024): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v6i1.62187

Abstract

This research aims to investigate the impact of the Discovery Learning model on students' scientific literacy skills in ecology at SMP Negeri 1 Delitua. The research method used was quantitative with a sample of 66 students from classes VII-5 and VII-6, selected using a purposive sampling technique. The instrument used is a scientific literacy test, with the independent variable (Discovery Learning model and direct learning model) and the dependent variable is students' scientific literacy abilities. The results of the research show that the application of the Discovery Learning model has a significant influence on the scientific literacy abilities of class VII-5 students who are at level 2 with a score of 31, which is in the poor category. However, after implementing the Discovery Learning model, scientific literacy ability increased to level 4 with a score of 69 and was included in the sufficient category.In conclusion, the application of the Discovery Learning model is effective in improving students' literacy skills on ecological material in class VII-5 SMP Negeri 1 Delitua. This finding provides an important implication for the development of a more problem-oriented student learning approach in improving students' science literacy.
LEVEL OF SCIENCTIFIC LITERACY ABILITY OF MIDDLE SCHOOL STUDENTS IN MEDAN BASED ON FRAMEWORK PISA 2018 Aristo Hardinata; Mariati P Simanjuntak; Ely Djulia; Sunita K Purba; Koriatul J Siregar; Ghania D U Lubis
ISER (Indonesian Science Education Research) Vol 5, No 2 (2023): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v5i2.55409

Abstract

Based on the PISA 2022 results, the scientific literacy abilities of Indonesian students are still below the international average. This research aims to see the level of scientific literacy abilities of junior high school students in Medan City in 2023. This research was carried out at several representative schools designated by researchers as schools representing sub-districts in Medan City. Sample selection was carried out using stratified random sampling. From the 21 sub-districts in the city of Medan, one superior junior high school in each sub-district was selected. From the 21 selected schools, 1 superior 8th grader from that school was taken from each school. The instruments used are scientific literacy questions which have previously been developed by researchers following the indicators set out in the PISA 2018 framework which consists of 15 indicators for 3 scientific literacy competencies in the PISA 2018 framework. It can be concluded that the average scientific literacy ability of students in Medan City was still in the sufficient category. Student achievement was still low in several PISA 2018 framework scientific literacy competency indicators
DEVELOPMENT OF STUDENT WORKSHEETS BASED ON PjBL USING LIVEWORKSHEET ON TEMPERATURE AND HEAT MATERIALS TO INCREASE STUDENT LEARNING OUTCOMES SMP NEGERI 29 MEDAN T.P 2023/2024 Ade Sara Sabila Nasution; Halim Simatupang; Aristo Hardinata
ISER (Indonesian Science Education Research) Vol 6, No 1 (2024): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v6i1.62185

Abstract

This study aims to see the feasibility based on the assessment of material experts, language and learning experts, design experts, the responses of educators and students as well as the effectiveness of the Student Worksheets Based on PjBL Using Liveworksheet on Temperature and Heat Material to Increase Student Learning Outcomes at VII Junior High School students. The sample of this study was students of class VII-5, totaling 32 people. This type of research is Research and Development (R&D) using the ADDIE model. The instrument used in this study consisted of a material expert validation questionnaire, language and learning experts, design experts, a questionnaire for educators and students' responses. The test is in the form of an essay to measure the level of students' learning outcome on Temperature and Heat material. Based on the results of the study obtained data from material expert validation of 84%, validation of language and learning experts 97,33% and validation of design experts 82,66% with each in the strongly feasible category. The response of students with 32 people was 85,33% and teacher response was 92% in the strongly feasible category. So based on the results of the students’ worksheet validation, this is suitable for use in the learning process. Students’ worksheet which is designed effectively to increase students' learning outcomes, the results of students' learning outcomes are obtained with an average N-Gain value of 0.72 with high criteria.
THE INFLUENCE OF PROBLEM BASED LEARNING ASSISTED BY PhET COLORADO MEDIA ON STUDENTS’ LEARNING OUTCOMES AND SCIENCE PROCESS SKILLS ON THE MATERIAL OF FORCE AT PUBLIC JUNIOR HIGH SCHOOL 37 MEDAN Christina Sinaga, Artha; Hardinata, Aristo
ISER (Indonesian Science Education Research) Vol. 6 No. 2 (2024): Vol. 6 No. 2 (2024): Indonesian Science Education Research (ISER)
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v6i2.66419

Abstract

This research explores the effects of applying the Problem-Based Learning (PBL) model, supported by PhET Colorado media, on students' learning achievement and science process skills in the topic of force among seventh-grade students at SMP Negeri 37 Medan during the 2024/2025 academic year. The study employs a quasi-experimental approach using a Pretest-Posttest Control Group Design, with two classes selected as the research sample, VII-E (Experimental Class) using PBL with PhET Colorado and VII-F (Control Class) without PBL and PhET Colorado. The sampling technique applied was Purposive Sampling. Data collection was conducted through tests and observations, followed by analysis using the Independent Sample t-test. In the experimental class, the average pretest score was 40, while the posttest score showed a significant improvement, reaching 84, while in the control class, they were 39 and 67. The hypothesis test confirmed a significant effect of PBL with PhET Colorado on students' learning outcomes. Additionally, the final assessment of science process skills revealed that the experimental class achieved a proficiency rate of 79.41%, whereas the control class attained a lower percentage of 39.16%, demonstrating a significant impact of the implemented learning model. Keywords: PBL, PhET, colorado, science, skills
DEVELOPMENT OF STUDENT WORKSHEETS BASED ON PjBL USING LIVEWORKSHEET ON TEMPERATURE AND HEAT MATERIALS TO INCREASE STUDENT LEARNING OUTCOMES SMP NEGERI 29 MEDAN T.P 2023/2024 Nasution, Ade Sara Sabila; Simatupang, Halim; Hardinata, Aristo
ISER (Indonesian Science Education Research) Vol. 6 No. 1 (2024): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v6i1.62185

Abstract

This study aims to see the feasibility based on the assessment of material experts, language and learning experts, design experts, the responses of educators and students as well as the effectiveness of the Student Worksheets Based on PjBL Using Liveworksheet on Temperature and Heat Material to Increase Student Learning Outcomes at VII Junior High School students. The sample of this study was students of class VII-5, totaling 32 people. This type of research is Research and Development (R&D) using the ADDIE model. The instrument used in this study consisted of a material expert validation questionnaire, language and learning experts, design experts, a questionnaire for educators and students' responses. The test is in the form of an essay to measure the level of students' learning outcome on Temperature and Heat material. Based on the results of the study obtained data from material expert validation of 84%, validation of language and learning experts 97,33% and validation of design experts 82,66% with each in the strongly feasible category. The response of students with 32 people was 85,33% and teacher response was 92% in the strongly feasible category. So based on the results of the students™ worksheet validation, this is suitable for use in the learning process. Students™ worksheet which is designed effectively to increase students' learning outcomes, the results of students' learning outcomes are obtained with an average N-Gain value of 0.72 with high criteria.
THE EFFECT OF DISCOVERY LEARNING MODEL ON SCIENCE LITERACY SKILLS OF ECOLOGICAL MATERIAL AT SMP NEGERI 1 DELITUA Aulia, Riski; Hardinata, Aristo
ISER (Indonesian Science Education Research) Vol. 6 No. 1 (2024): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v6i1.62187

Abstract

This research aims to investigate the impact of the Discovery Learning model on students' scientific literacy skills in ecology at SMP Negeri 1 Delitua. The research method used was quantitative with a sample of 66 students from classes VII-5 and VII-6, selected using a purposive sampling technique. The instrument used is a scientific literacy test, with the independent variable (Discovery Learning model and direct learning model) and the dependent variable is students' scientific literacy abilities. The results of the research show that the application of the Discovery Learning model has a significant influence on the scientific literacy abilities of class VII-5 students who are at level 2 with a score of 31, which is in the poor category. However, after implementing the Discovery Learning model, scientific literacy ability increased to level 4 with a score of 69 and was included in the sufficient category.In conclusion, the application of the Discovery Learning model is effective in improving students' literacy skills on ecological material in class VII-5 SMP Negeri 1 Delitua. This finding provides an important implication for the development of a more problem-oriented student learning approach in improving students' science literacy.
Co-Authors Abdul Latip Abdul Latip Abdul Latip, Abdul Ade Sara Sabila Nasution Andromeda Andromeda Christina Sinaga, Artha Ely Djulia Fatin Hanifa Ghania D U Lubis Halim Simatupang Koriatul J Siregar Lastama Sinaga Marpaung, Fytry Vebiola Monica Prima Sari Mufti Sudibyo, Mufti Nasution, Ade Sara Sabila Natasya, Titania Pasaribu, Maruahal Nicholas Rahmah, Nadia Tri Ramlan Silaban Relsas Yogica, Relsas Retno Dwi Suyanti Riski Aulia Riski Aulia, Riski Rita Oktavia Sembiring, Surya Karinanta Shelly Efwinda Simanjutak, Mariati Purnama Sinaga, Artha Christina Suci Rahmawati, Suci Sunita K Purba Widia Ningsih Widia Ningsih, Widia