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All Journal Hydrogen: Jurnal Kependidikan Kimia Jurnal Kajian Pembelajaran dan Keilmuan Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) EduChem
Harun, Andi Ifriany
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Chemistry Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Development of Student Worksheet Based on Project Based Learning on Mixed Separation Material at SMKN 7 Pontianak Purba, Nasriani; Harun, Andi Ifriany; Ulfah, Maria; Enawaty, Eny; Rasmawan, Rahmat
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.10861

Abstract

Chemistry learning in schools still tends to be teacher-centered, so students have limitations in connecting subjects to real life. The material on the mixed separation related to basic competence skills will be achieved through chemical experiments, but there is no chemical laboratory in schools. The learning activities only use textbooks borrowed from the library, so there is a need for other teaching materials that can help students to carry out chemistry experiments in the form of PjBL based Student Worksheet (LKPD) on separating mixed. The aim of this research is to asses the feasibility of PjBL based LKPD in mixed separation and determine the responses of students and teachers. Research and development (R&D) uses the ADDIE model, but this research only reaches the development stage. The subjects in this study were PjBL-based worksheets on mixed separation materials which were tested on a limited basis (15 students) and a large scale (35 students) at State Vocational High School (SMKN) 7 Pontianak. Data collection techniques used are direct communication techniques and indirect communication. Data collection tools are interview guides, feasibility assessment sheets, student and teacher response questionnaires. The expert assessment using the Gregory test showed that the criteria were very feasible,  with a very high validity value of 1.00 for content, presentation, graphics and language aspects. The response test results with limited and extended trials obtained an average percentage of 85% and 86% respectively, and the response test results for 3 teachers obtained an average percentage of 88%. The results of the assessment indicate that the PjBL-Based Student Worksheet (LKPD) is very suitable for use in supporting chemistry experiments on mixed separation material in learning activities.
The Effect of the Talking Chips Cooperative Model Based on the Quiz Team Strategy on Interest and Learning Outcomes Senta; Enawaty, Eny; Harun, Andi Ifriany
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 5 (2025): October 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i5.18097

Abstract

The Talking Chips learning model is a cooperative approach that uses cards as a tool to regulate speaking turns. Meanwhile, the Quiz Team strategy aims to improve group cooperation through fun activities. This study aims to determine the effect of applying the Talking Chips model based on the Quiz Team strategy on students' interest and learning outcomes. The research was conducted with a quantitative approach using a quasi-experimental method and a post-test only control group design. The study was conducted at SMPN 26 Pontianak City in the even semester of the 2024/2025 academic year with a sample of two eighth grade classes with equal academic abilities. The experimental class received learning using the Talking Chips model based on the Quiz Team strategy, while the control class used conventional learning. The research instruments consisted of a learning interest questionnaire and a post-test learning outcome test.The results showed that the average learning outcome score of students in the experimental class (68.23) was higher than that of the control class (60.16), with a significant difference based on the Mann-Whitney test (Sig. 0.046). The Effect Size value of learning outcomes was 0.52, indicating that the learning model had a moderate effect on learning outcomes. In addition, in terms of learning interest, the experimental class obtained a “Very High” category with an average of 91.8%, while the control class was in the “Fair” category with an average of 69.4%. The t-test showed a significant difference (Sig. 0.000) with an Effect Size value of 2.02, which means that the learning model has a very large effect on learning interest. This study combines the Talking Chips model with the Quiz Team strategy as a cooperative learning approach that has been proven effective in increasing student interest and learning outcomes simultaneously.
Co-Authors Alimah, Alimah Diannisa, Nyemas Firda Eny Enawaty Erlina*, Erlina Husna Amalya Melati Ira Lestari Maria Ulfah Pawestri, Nur Arneta Phikly, Anastasius Khristozolla Purba, Nasriani Puspita, Ninda Ikke Rachmat Sahputra Rahmat Rasmawan Rody Putra Sartika Sasri, Risya Senta Tulus Junanto Winel, Khezya Merary Yunita Puspasari, Yunita