Setyowati, Istri
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THE USE OF GOOGLE SITES AS A LEARNING MEDIUM TO IMPROVE STUDENTS’ COGNITIVE LEARNING OUTCOMES AND SELF-EFFICACY IN THE TOPIC OF BASIC LAWS OF CHEMISTRY Azizah, Putri Augista Nur; Sulistina, Oktavia; Setyowati, Istri
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p238-245

Abstract

This study aims to determine the improvement in students’ cognitive learning outcomes and self-efficacy through the use of Google Sites as a learning medium. The study was conducted at SMA Laboratorium UM in class X.4 in the 2024/2025 academic year with 36 students. The study was conducted using a Classroom Action Research (CAR) method. The instruments used were observation sheets, test questions, and self-efficacy questionnaires. The study results showed that the implementation of learning in cycle I was 88.28% and in cycle II was 90.50%. In addition, students’ cognitive learning outcomes increased, as evidenced by the students’ classical completeness rate, which rose from 44.44% in cycle I to 88.89% in cycle II. Students’ self-efficacy also increased from 24.50 to 30.14 in cycle II and was categorised as high. Thus, the use of Google Sites as a learning medium has been shown to improve students’ cognitive learning outcomes and self-efficacy in the context of the Basic Laws of Chemistry material.
IMPLEMENTATION OF GUIDED INQUIRY LEARNING WITH SOCIO-SCIENTIFIC ISSUES CONTEXT TO STUDENTS' CRITICAL THINKING SKILLS ON BUFFER SOLUTION MATERIAL Afifah, Sabrina Aulia; Sulistina, Oktavia; Setyowati, Istri
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p202-209

Abstract

This study aims to determine the effect of the application of guided inquiry learning model with Socio-Scientific Issues (SSI) context on students' critical thinking skills on buffer solution material. This study used a pre-experiment design type one group Pre-Test Post-Test with the subject of 30 students of class XI MIPA 6 SMA Laboratorium UM Malang. The measurement instrument was a reasoned multiple choice test to measure students' critical thinking skills. Data were analyzed using normality test, homogeneity, N-Gain analysis, and Wilcoxon test. The results showed an increase in the average Post-Test score by 36.48 points from the Pre-Test. The N-Gain value showed an increase in the medium (56.67%), low (40.00%), and high (3.33%) categories. Guided Inquiry Learning syntax cinsisting of Problem Orientation, Problem Formulation, Hypothesis Formulation, Investigation, Data Analysis, and Conclusion Drawing proved effective in encouraging students’ critical thinking skills. SSI contexts such as betel nut phenomenon provide contextual stimulus that helps students to be able to connect chemistry concept with their daily life and also strengthens students’ analysis and reflection in chemistry learning The Wilcoxon test results produced a significance value of 0.000 (p < 0.05) which means there is a significant difference between the Pre-Test and Post-Test. GIL syntax consisting of problem orientation, problem formulation, hypothesis formulation, investigation, data analysis, and conclusion drawing proved effective in encouraging students' critical thinking skills. SSI contexts such as the betel nut phenomenon provide contextual stimulus that strengthens students' analysis and reflection in chemistry learning.
IMPACT OF PROCESS-ORIENTED GUIDED INQUIRY LEARNING (POGIL)WITH THE CONTEXTUAL TEACHING AND LEARNING (CTL) BASED APPROACH IN IMPROVING STUDENTS' SCIENCE LITERACY ON BUFFER SOLUTION MATERIAL Salsabila, Rosyada; Sulistina, Oktavia; Setyowati, Istri
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p220-226

Abstract

This study aims to investigate the effect of Process-Oriented Guided Inquiry Learning (POGIL) combined with the Contextual Teaching and Learning (CTL) approach on improving students' scientific literacy in the context of buffer solution material. The research was conducted using Classroom Action Research (CAR) involving 32 eleventh-grade students from SMA Laboratorium UM Malang. Scientific literacy was assessed through post-tests at the end of each cycle using PISA-based instruments, along with observation sheets, interview guides, and reflection journals. Each test cycle included five items measuring three literacy aspects: explaining scientific phenomena, interpreting scientific data, and evaluating and designing scientific investigations. The results showed that the average scientific literacy score increased from 65.94% in Cycle 1 to 84.17% in Cycle 2. The greatest improvement occurred in the aspect of evaluating and designing investigations, with an increase of 29.37 points. Additionally, the implementation level of the POGIL-CTL model rose from 83.5% to 91%, indicating enhanced instructional effectiveness. These findings demonstrate that CTL-based POGIL learning can improve students' scientific literacy, particularly in applying scientific processes and contextual understanding.
Problem-Based Learning versus STAD Leaning Model for Improving Students' Argumentation Skills in Thermochemistry Tyas, Frida Kristining; Dasna, I Wayan; Wijaya, Anugerah Ricky; Setyowati, Istri
Jurnal Pendidikan MIPA Vol 24, No 1 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study investigates whether the use of the Problem-Based Learning (PBL) model and Cooperative learning STAD can improve argumentation skills in the thermochemistry chapter. The research sample is 72 grade 11 high school students. The research design was quasi-experimental with a pretest-posttest control group design. The results of the study: (1) there was no difference in initial ability between the PBL and CL STAD classes with a significance value of > 0.00; (2) there are differences in argumentation skills between PBL and CL STAD classes with a significance value <0.00; (3) the PBL model N-Gain test was 60.50% in the "quite effective" category and CL STAD was 41.97% in the "less effective" category. Therefore, the PBL model is more effective in improving students' argumentation skills.  Keywords: problem based learning, STAD learning model, argumentation skills, thermochemistry.DOI: http://dx.doi.org/10.23960/jpmipa/v24i1.pp298-308