cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
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
Published by Universitas Syiah Kuala
ISSN : 23384522     EISSN : 28096789     DOI : https://doi.org/10.24815/jcd
Core Subject : Science, Education,
Chemistry 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
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 8, No 2 (2020)" : 5 Documents clear
ANALYSIS OF VITAMIN C AND B1 LEVELS IN SENDUDUK FRUIT (Melastoma malabathricum L.) USING UV-VIS SPECTROPHOTOMETRY METHOD Rejeki Geubrina Putri; Muhammad Nasir; Abdul Gani
Chimica Didactica Acta Vol 8, No 2 (2020)
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.574 KB) | DOI: 10.24815/jcd.v8i2.23028

Abstract

The fruit of "senduduk" contains a variety of nutrients and vitamins including vitamin C and B1. This study aims to determine the levels of vitamins C and B1 in young and ripe senduduk fruit that grows in coastal areas and in the mountains. The sample of the fruit was extracted with water. The absorbance of the extract of the fruit was then measured using UV-Vis spectrophotometry for vitamin C at a wavelength of 250 nm, while for vitamin B1 was measured at 420 nm. The results showed that vitamin C levels were (G1 = 0.34; G2 = 0.29%; P1 = 0.35; and P2 = 0.31)%, vitamin B1 was (G1 = 0.21; G2 = 0, 10%; P1 = 0.28; and P2 = 0.18)%. The results of the study can be concluded that there is a significant difference in vitamin C levels between young and old fruit, but it is not significantly different for the difference in the place of growth. There is a significant difference in vitamin B1 levels between young and ripe senseng fruit.
DEVELOPMENT OF BULLETIN LEARNING MEDIA ON THE CONCEPT OF FOSSIL FUEL Zulfadli Zulfadli; Latifah Hanum; Musfira Arisandi
Chimica Didactica Acta Vol 8, No 2 (2020)
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.067 KB) | DOI: 10.24815/jcd.v8i2.23023

Abstract

This study aims to develop a bulletin on petroleum material and analyze the feasibility and describe the teacher's response to the bulletin learning media on petroleum material. The research method used is research and development (research and development) with the ADDIE model which consists of five steps, namely analysis, design, development, implementation and evaluation. Data collection was carried out online by distributing a google form questionnaire through the WhatsApp Messenger messaging application to 27 chemistry teachers who teach at the Senior High School (SLTA) of South Aceh Regency. The feasibility of the bulletin media was assessed by two media validators with a percentage of 91.66% with very decent criteria. The percentage of teacher responses to the bulletin media that was developed was 97.94% with a very good category. Based on the results of the study, it can be concluded that the bulletin media developed is suitable for use in the petroleum learning process.
IMPLEMENTATION OF THE LEARNING CYCLE 7E MODEL IN LEARNING THE CONCEPT OF REACTION RATES Latifah Hanum; Hulfa Harnisah; Ade Ismayani
Chimica Didactica Acta Vol 8, No 2 (2020)
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.136 KB) | DOI: 10.24815/jcd.v8i2.23024

Abstract

The purpose of this study is to describe the activities of students, the completeness of student learning outcomes, and student responses to the 7E learning cycle learning model on the reaction rate material. This is a descriptive study with a qualitative approach. The sample in this study was 28 students of class XI MIA-3 at SMAN 5 Banda Aceh. The instruments used in this study were student activity observation sheets, test question sheets, and student response questionnaire sheets. The overall activity of students increase from time to time. The results of observing student activities in the seven stages of the 7E learning cycle model obtained an average of 87.63% of student activity at the elicit stage, 91.75% engage stage, 94.38% explore stage, 83.38% explain stage. , elaborate stage 70.88%, evaluate stage 79.13%, and extend stage 87.13%. The highest activity is at the explore stage. The average percentage of classical student learning outcomes is 75% with a good category. Positive responses from students were obtained by 80.77%. Based on the results of the research that has been done, it can be concluded that the application of the 7E learning cycle model can complete the classical learning of students. Overall student activity has increased and the highest activity is in the explore stage and students give good responses to the application of the 7E learning cycle learning model.
IMPLEMENTATION OF THE ROTATING TRIO EXCHANGE (RTE) MODEL IN LEARNING THE CONCEPT OF MOLECULAR GEOMETRY Ismatul Ilmi; Ade Ismayani; Ratu Fazlia Indah Rahmayani
Chimica Didactica Acta Vol 8, No 2 (2020)
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.65 KB) | DOI: 10.24815/jcd.v8i2.23026

Abstract

This study aims to describe the activities and responses of students to the RTE learning model on the concept of molecular geometry and to analyze the completeness of student learning outcomes. This is a descriptive study with a qualitative approach. The sample used in this study was class X MIA-2 MAN 6 Aceh Besar for the 2019/2020 school year. Data were collected by observing student activities, learning outcomes tests and questionnaire responses. The results of observing student activities for three meetings 1,2 and 3 respectively were 86%, 89.25% and 95%. The learning outcomes of students in class X MIA-2 MAN 6 Aceh Besar with the application of the RTE learning model on the molecular form material can be categorized as good, with the percentage of students who complete the completeness of 79.2%. 99.3% of students responded positively to the application of the RTE model.
IMPLEMENTATION OF THE TOGETHER LEARNING MODEL TO IMPROVE STUDENTS' LEARNING OUTCOMES ON THE CONCEPT OF MOLECULAR GEOMETRY Rusman Rusman; Reza Resita Vonna; Ratu Fazlia Inda Rahmayani
Chimica Didactica Acta Vol 8, No 2 (2020)
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.432 KB) | DOI: 10.24815/jcd.v8i2.23027

Abstract

The purpose of this study was to analyze student learning outcomes, describe student activities and describe student responses after the application of the learning together model on the material of molecular form at SMA Negeri 1 Krueng Barona Jaya. This is a descriptive study with a qualitative approach. The population in this study were students of class X SMA Negeri 1 Krueng Barona Jaya. Data were collected by observing student activities, learning outcomes tests and filling out student response questionnaires. The results of the percentage of student activity from the first meeting to the third meeting in a row, namely 71%, 84% and 85% showed that the activity of students increased significantly. The percentages of learning outcomes at the first to third meetings were 67.50%, 77.50% and 87.50% which showed an increase and classical mastery achievement. Students showed a positive response to the application of the learning together model on the material in the form of molecules with a percentage of 94.07%. The learning together model can improve students' activities and learning outcomes. Students are enthusiastic in participating in learning using the learning together model and most of them give a positive response.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2020 2020


Reset
Filter By Issues
All Issue Vol 13, No 1: June 2025 Vol 12, No 2: December 2024 Vol 12, No 1: June 2024 Vol 11, No 1: June 2023 Vol 10, No 2: December 2022 Vol 10, No 1: June 2022 Vol 9, No 2: December 2021 Vol 9, No 1: June 2021 Vol 8, No 2 (2020) Vol 8, No 1 (2020) Vol 2, No 1 (2014) Vol 1, No 1 (2013) More Issue