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All Journal Hydrogen: Jurnal Kependidikan Kimia Ranah Research : Journal of Multidisciplinary Research and Development
Sahputra, Rachmad
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Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Transportation Other

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Development of Science Process Skills Assessment Instruments in Environment Based Practicum on Reaction Rate Material Nurmala, Nurmala; Sahputra, Rachmad; Rasmawan, Rahmat; Masriani, Masriani; Melati, Husna Amalya
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10441

Abstract

This study aims to produce an Environmental-Based Chemistry Practicum Assessment Instrument for Reaction Rate Material for 11th Grade of MA/ SMA. The development model used in this research is the development model according to Borg and Gall which consists of 4 stages: Potential and Problems, Gathering Information, Product Design, and Design Validation. The development in this study refers to the product produced in the form of an assessment instrument. which is measured until the validity of the expert where the validity aspects are based on the results of the experts' assessment validation questionnaire. The aspects assessed in the product of the environmental-based practicum performance instrument assessment instrument are the feasibility of instructions, content feasibility and language feasibility. The assessment instrument in this content aspect is arranged sequentially according to the practicum procedure. Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 93%, then the linguistic aspect is divided into several assessment criteria, including the use of language in accordance with EYD, clarity of instructions and directions and the language used is straightforward and easy to understand Based on the results of validation by validators, the linguistic aspect obtained a score with a percentage of 91%. The validity level of the chemistry practicum performance assessment instrument measured practicum performance in the form of scores 1-4. Determination of the validity of the practicum performance assessment instrument is done by calculating the score given by the validator and analyzing the validator's suggestions and input on the instrument product assessment questionnaire sheet in the form of a check list. The results concluded that the student practicum performance assessment instrument was feasible to use.
Identifikasi Penguasaan Konsep Matematika Dalam Penyelesaian Soal Kesetimbangan Kimia Filzah Nasyanovariani, Dinda; Sahputra, Rachmad; Rustam, Rustam
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 6 No. 5 (2024): Ranah Research : Journal Of Multidisciplinary Research and Development (Juli 20
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/rrj.v6i5.1062

Abstract

This study aims to identify students' mastery of mathematical concepts in solving chemical equilibrium problems. The type of research used is descriptive qualitative research. The research subjects were students of Class XI IPA 2 SMA Muhammadiyah 1 Pontianak who had taken high school chemistry subjects in Class XI. Data collection was done through written tests, interviews, and documentation. The results showed that students had not fully mastered the mathematical concepts needed in solving chemical equilibrium problems. Some mathematical concepts that have not been well mastered include algebraic operations, equations, and graphs. Students' biggest difficulty is in converting the information given in the problem into a mathematical model. This finding indicates the need to strengthen students' understanding of mathematical concepts, especially those related to the concepts needed in studying chemical equilibrium. In addition, better integration between mathematics learning and chemistry learning is needed so that students can apply mathematical concepts more effectively in solving chemical problems.
Co-Authors Filzah Nasyanovariani, Dinda Husna Amalya Melati Masriani . Nurmala Nurmala Rahmat Rasmawan Rustam Rustam