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All Journal Jurnal Santiaji Pendidikan (JSP) Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia
Gusman Santika
Universitas Negeri Jakarta
Chemistry Education

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ENHANCING CHEMISTRY LEARNING THROUGH A CRITICAL THINKING ASSESSMENT TOOL Tiwi Nur Astuti; Sarina Hanifah; Retno Ayu Puspita; Gusman Santika
Jurnal Santiaji Pendidikan (JSP) Vol. 16 No. 1 (2026): Jurnal Santiaji Pendidikan (JSP)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan (FKIP) Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jsp.v16i1.13303

Abstract

This study aims to develop a critical thinking skills instrument in chemistry learning, especially in chemical bonding material. This instrument was developed in 4 steps, namely determining aspects, compiling indicators, compiling questions, and validation which includes content validation and empirical validation. Content validation was carried out by 2 expert lecturers. The critical thinking skills question instrument was analyzed using Aiken V. The results of the analysis showed that out of 6 questions, all had a validity coefficient value of more than 0.35 and were declared valid. The empirical validation stage involved 275 students. The empirical validation analysis was carried out using the Rasch model. Based on the results of the analysis, 6 fit questions were obtained and had a cronbach's alpha reliability estimate value of 0.82 and were reliable for use in measuring students' critical thinking skills.
PENGEMBANGAN MODUL STUDI PEMISAHAN BERBASIS ADSORPSI UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MAHASISWA CALON GURU Sarina Hanifah; Elma Suryani; Gusman Santika; Tiwi Nur Astuti
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 9, No 1 (2026)
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/dl.v9i1.22113

Abstract

Penelitian ini bertujuan untuk mengembangkan dan menguji efektivitas modul studi pemisahan berbasis adsorpsi dalam meningkatkan kemampuan berpikir kritis mahasiswa calon guru kimia. Metode Research and Development (R&D) dengan model ADDIE diterapkan dalam pengembangan modul yang mengintegrasikan studi kasus nyata remediasi ion Pb²⁺ menggunakan adsorben biomassa kopi terenkapsulasi kalsium alginat. Hasil validasi ahli menunjukkan modul layak digunakan pada aspek kesesuaian materi, kerangka/pembelajaran, dan kebahasaan. Uji efektivitas terhadap 36 mahasiswa melalui desain one group pretest-posttest membuktikan peningkatan signifikan kemampuan berpikir kritis dengan nilai N-Gain 0,245. Modul ini tidak hanya berhasil meningkatkan pemahaman konseptual tetapi juga berfungsi sebagai model pedagogis dalam melatih keterampilan berpikir kritis, sehingga direkomendasikan untuk implementasi dalam pembelajaran kimia pemisahan.
Co-Authors Elma Suryani Retno Ayu Puspita Sarina Hanifah Tiwi Nur Astuti