cover
Contact Name
Muhammad Nazar
Contact Email
mnazar.unsyiah@gmail.com
Phone
+6281345000144
Journal Mail Official
chimica@fkip.usk.ac.id
Editorial Address
Jurusan Pendidikan Kimia FKIP USK Jl. Tgk Hasan Krueng Kalee Kopelma Darussalam, 23111
Location
Kab. aceh besar,
Aceh
INDONESIA
Chimica Didactica Acta : Journal of Chemistry and Chemistry Education
ISSN : 23384522     EISSN : 28096789     DOI : https://doi.org/10.24815/jcd
Core Subject : Science, Education,
Chimica Didactica Acta is a peer reviewed journal publishing research articles that address the topics of chemistry and chemistry education and practices. We focus on the topics but not limited to organic chemistry, inorganic chemistry, analytical chemistry, biochemistry, physical chemistry and educational chemistry and practices
Articles 13 Documents
Search results for , issue "Vol 12, No 2: December 2024" : 13 Documents clear
COMPREHENSIVE ANALYSIS OF GROUNDWATER QUALITY IN BANTAYAN VILLAGE TOURISM AREA, NORTH ACEH: PHYSICAL, CHEMICAL, AND MICROBIOLOGICAL PERSPECTIVES Syafrizal, Syafrizal; Sari, Arlin Maya; Dewi, Ucia Mahya; Nasution, Nurul Azmi; Fadillah, Putri
Chimica Didactica Acta Vol 12, No 2: December 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i2.41336

Abstract

The water quality of drilled wells in the tourist area of Bantayan village, North Aceh, has been carried out. This study aims to find out how suitable the water from the drilled well is for use by the community in the area. Samples were taken from five water sources of drilled wells with a depth of 3.5 m located in Bantayan village. The feasibility of water consumption can be assessed by testing the quality based on microbiological, physical, and chemical parameters. The parameters measured were color, turbidity, odor (physics), heavy metal content pH (chemical), and bacterial content (microbiology). The measurement results showed that although almost all water samples had water quality that met the standards based on physical and chemical parameters, the water sourced from the five borewells did not meet the standards of biological tests. Testing revealed the presence of total coliform and Escherichia coli (E. coli) ranging from 8-370 CFU/100 mL and 0-150 CFU/100mL, respectively. According to the requirements of the Regulation of the Minister of Health of the Republic of Indonesia No. 2/MENKES/2023 concerning drinking water quality, the acceptable levels for total coliform and E. coli in drinking water are 0 CFU/100mL. Therefore, the presence of these contaminants in the drilled well water renders it unsuitable for consumption, posing potential health risks to the community.
FUZZY DELPHI METHOD FOR DESIGNING AND DEVELOPING ACID BASE Et-PBL MODULE TO IMPROVE PROBLEM-SOLVING SKILLS Khaira, Kuntum; Ibrahim, Mohd Mokhzani
Chimica Didactica Acta Vol 12, No 2: December 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i2.41325

Abstract

Innovative and creative techniques and materials for teaching and learning are required to stay up with the advancements of globalization. The purpose of this study is to reach expert consensus on the precise and relevant components that should be used while designing and developing an acid-base Et-PBL module to improve problem-solving skills.This study's design is quantitative and employs the Fuzzy Delphi method.Thirty-three items made up the questionnaire instrument used to gather research data. Twelve experts from 10 different colleges who specialize in chemistry education and Islamic education participated in the study.Based on the expert consensus value over 75%, the fuzzy score (A) - cut value = 0.5, and the threshold value (d) 0.2, the data analysis results indicated that the experts accepted all these items. Consequently, it demonstrates that these components have been agreed upon by experts and are required for the design and development of the acid-based Et-PBL module
ANALYSIS OF STUDENTS CHEMICAL BONDING MISCONCEPTIONS USING TWO-TIER DIAGNOSTIC TEST Putri, Nabilah Mustika; Rahmawati, Yuli; Irwanto, Irwanto
Chimica Didactica Acta Vol 12, No 2: December 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i2.39592

Abstract

This study aims to identify the misconceptions of 10th-grade students of a Senior High School (SMA N 1) Ciawi Bogor on chemical bonding by using a two-tier diagnostic test consisting of nine questions. The research method that was carried out was quantitative research with adescriptive approach. The participants of this study were classes X-2, X-4, and X-8 of SMAN 1 Ciawi in the academic year 2023/2024, with a total sample of 96 students taken from three classes using purposive sampling. Moderate misconceptions concerning ionic bonding have been discovered in the responses provided by the students for questions 1 and 2, with percentages of 37.50 and 34.38%, respectively. In Question 3, which covered lattice and intermolecular forces on silicon carbide, misconceptions among students were found to be 72.92%, indicating a high level of misconception. The percentage of students experiencing misconceptions about ionic bonding in question 4 (58.33%) was considered moderate. Students' misconceptions about bonding and intermolecular forces on magnesium oxide were determined to be relatively low, at 30.21%. Students who experienced misconceptions about the conductivity of graphite (Question 6) were 43.75%, which can be categorized as moderate misconceptions. In Question 7 about sulfur, student misconceptions were observed at 15.63%, but there were 47.92% who did not have prior knowledge about sulfur as a simple molecular compound. When asked about the differences in intermolecular forces on water and hydrogen sulfide, the percentage of students who had misconceptions was observed at 50.00%, then on the concept of lattice and intermolecular forces on macromolecules at 25.00%. These results are also influenced by students' prior knowledge of macromolecules, which is quite limited. Teachers and educators can employ some potential futuristic instructional methods to help students understand chemical bonding more efficiently, such as implementing VR and AR simulations, integration of gamification and game-based learning, andvirtual field trips and interactive demonstrations.

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