Roemintoyo Roemintoyo
Sebelas Maret University

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The Effectiveness of Science Textbook Based on Science Technology Society for Elementary School Level Alifah Kartikasari; Roemintoyo Roemintoyo; Sri Yamtinah
International Journal of Evaluation and Research in Education (IJERE) Vol 7, No 2: June 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.608 KB) | DOI: 10.11591/ijere.v7i2.13022

Abstract

This study reports a quasi-experimental investigating the development of Science textbook based on Science Technology and Society for elementary school. The data collection was got from the achievement test (pretest-posttest). The population was all fourth-grade students of elementary schools in Gatak Subdistrict and the sample of the study was two schools as an experimental class and control class. The research sample was taken by random sampling technique. The results of this research showed that there was an improvement of student achievement before and after the implementation of science textbook based on Science Technology and Society. The result of the independent sample t-test shows that tobs is higher than table (5.489>1.681). The outcomes of the learning improvement in the experimental class based on the acquisition of N-Gain scores of 0.558. Based on tobs results, H0 is rejected. So it can be concluded that the development of a science textbook based on Science Technology Society in elementary school is appropriate to use for learning.
The Impact of Numbered Heads Together Model on the Learning Outcomes of Science Viewed from Students’ Self Regulated Learning Nia Wahyu Wijayanti; Roemintoyo Roemintoyo; Tri Murwaningsih
Journal of Education and Learning (EduLearn) Vol 11, No 3: August 2017
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.872 KB) | DOI: 10.11591/edulearn.v11i3.5838

Abstract

This research aims to explain 1) the different impact among Numbered Heads Together (NHT) model and direct instruction on the science learning outcomes. 2) the different effect among the high, medium and low self regulated learning on the students’ learning outcomes of science. 3) the interaction among the learning models and self regulated learning towards the students’ learning outcomes of science. The type of research was quasi-experimental research with factorial design 2×3. Population of this research was all students of fifth grade elementary school. The hypothesis test used two-way analysis variant with unbalanced cells. Based on data analysis, Numbered Heads Together model with high self regulated learning was the most effective.
Development of Android-based virtual laboratory media at vocational school: effects on students’ cognitive skills Aisyah Khilawatun Niswah; Roemintoyo Roemintoyo; Triana Rejekiningsih
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i1.25470

Abstract

Vocational school students are not only required to master competency skills but also cognitive skills. Engineering mechanics learning is a basic calculation lesson that students should master. This research aimed to develop and identify the effectiveness of Android-based virtual laboratory (V-lab) media to improve students’ cognitive skills in learning engineering mechanics at vocational school in Surakarta. The subjects comprised 70 students of first grade vocational school majoring in civil engineering in Surakarta. This research was a research and development (R&D) study to develop an Android-based virtual laboratory media. Testing the N-Gain analysis in the experimental and control classes was to determine the effectiveness of virtual laboratory media in improving students’ cognitive thinking skills. Data were obtained from questionnaires and pretest and post-test test sheets. The developed virtual laboratory media was considered ‘very appropriate’ by media, material, and practitioner experts. The average value of N-Gain for the experimental class was 78.19% which was included in the effective category. Meanwhile, in the control class, the average N-Gain value reached 54.07%, which was included in the less effective category. This indicates that the use of Android-based virtual laboratory media for learning is more effective than conventional learning media.