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All Journal Tadris: Jurnal keguruan dan Ilmu Tarbiyah Analit: Analytical And Environmental Chemistry
Utami, Gamilla Nuri
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Chemistry Education Energy Environmental Science

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Enhancing Students’ Scientific Literacy on Environmental Pollution through Problem-Based Learning and Interactive Digital Modules Kuswandi, Nadya Firstilia; Meriza, Nadya; Dina Maulina; Utami, Gamilla Nuri
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 10 No 1 (2025): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/tadris.v10i1.21343

Abstract

This study explores the effectiveness of the Problem-Based Learning (PBL) model supported by interactive digital modules in enhancing junior high school students’ scientific literacy, particularly in learning about environmental pollution. The study was conducted at a public junior high school in Bandar Lampung using a quasi-experimental design with a non-equivalent control group. A purposive sampling technique was employed to select participants, comprising 61 students divided into an experimental group (n = 30) and a control group (n = 31). The learning intervention in the experimental group integrated PBL strategies with interactive digital modules, while the control group received conventional instruction. Data were collected using a standardized scientific literacy test and student response questionnaires. Quantitative data were analyzed using an independent samples t-test. The results showed a statistically significant difference in scientific literacy scores between the two groups (p = 0.001), demonstrating the positive impact of the intervention. This study provides empirical evidence that the integration of PBL and digital modules offers a promising approach to improving students’ scientific literacy, especially in addressing complex and context-based environmental topics. The findings suggest that such an approach can be effectively implemented in science classrooms to foster critical thinking and environmental awareness among students.
SINTESIS SENYAWA ANALOG KURKUMIN MONOKETON DENGAN VARIASI KONSENTRASI KATALIS KOH Anisa, Devi Nur; Utami, Gamilla Nuri; Hidayat, Diky
Analit : Analytical and Environmental Chemistry Vol. 7, No. 01 April (2022) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v7i1.2022.p13-20

Abstract

Kurkumin adalah salah satu bahan aktif dalam kunyit (Curcuma longa) dan telah mendapat perhatian karena sifat biologisnya dalam pengobatan penyakit kronis. Kurkumin mempunyai bioavailabilitas yang rendah dan metabolisme yang cepat namun senyawa analog kurkumin menunjukkan bioavailabilitas yang lebih baik. Penelitian ini bertujuan untuk mensintesis senyawa analog kurkumin serta menentukan variasi konsentrasi katalis yang mendapatkan rendemen tertinggi. Senyawa analog kurkumin monoketon telah disintesis menggunakan reaksi kondensasi Claisen Smidht dengan katalis KOH. Sintesis dilakukan dengan menggunakan metode ultrasound pada suhu kamar dalam waktu 30 menit. Pelarut yang digunakan ialah n-heksan : etil asetat (1 : 1). Sintesis senyawa analog kurkumin monoketon dengan katalis KOH menggunakan konsentrasi yang divariasikan dari 2,5 %; 5%; 7,5%; dan 10% memperoleh rendemen 81,4%; 58,64%; 57,11% dan 58,60%. Hasil sintesis diidentifikasi menggunakan FTIR. Kesimpulan dari penelitian ini menunjukkan bahwa variasi konsetrasi KOH dengan persentase 2,5% menunjukkan rendemen tertinggi sebesar 81,4%.
Co-Authors Devi Nur Anisa Dina Maulina Hidayat, Diky Kuswandi, Nadya Firstilia Meriza, Nadya