The Development Of Chemistry Virtual Laboratory On Colloidal System To Improve Generic Science Skills

Khaeruman, Khaeruman; Darmatasyah, Darmatasyah; Hulyadi, Hulyadi

doi:10.33394/hjkk.v5i2.1593

Cited by 3 publications

(2 citation statements)

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“…Abstract subatomic material becomes difficult for students to study because it affects atomic characteristics. Models are needed that can visually describe atoms and their subatomic particles to facilitate students in the overall conception of atoms (Khaeruman et al, 2017;Perdana et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Identification of Student Conceptions on the Molecular Structure of Organic Compounds Using Question

Hulyadi,

Muhali,

Fibonacci

2023

HJKK

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The atoms that make up organic molecules are carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), sulfur (S), and several other elements such as chlorine (Cl), bromine (Br), and iodine (I). The characteristics of the constituent organic molecules are important to study in order to understand the reactions and transformations in the synthesis of organic compounds. The weak conception of students about the characteristics of the constituent elements of organic compounds causes most students to experience difficulties in studying the structure of organic compounds. The purpose of this study was to find out the strengths and weaknesses of students' conceptions in understanding the molecular structure of organic compounds. This research is a quantitative descriptive research. The population of the study was 20 chemistry education students taking the basics of determining the structure of organic compounds. Samples were selected proportionally to the most. The instrument used is a description test designed in the form of a question mapping. The data obtained is then described in tables and graphs. The results showed that most of them were able to determine the types of atoms and bonds formed. Most students have not been able to explain the characteristics of the atoms that make up organic compounds and the subatomic characters that make up the atoms. Technology is needed that can visualize organic molecules at the atomic and subatomic levels to be able to build stronger student conceptions.

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Section: Resultsmentioning

confidence: 99%

Identification of Student Conceptions on the Molecular Structure of Organic Compounds Using Question

Hulyadi,

Muhali,

Fibonacci

2023

HJKK

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“…Untuk kegiatan pembelajaran kimia perlunya tempat yang lebih spesifik selain dikelas seperti di laboratorium agar dapat dilakukannya percobaan dan penelitian (Khaeruman et al, 2019). Dikarenakan kegiatan praktikum ini sangat penting, di masa Covid ini pun tetap dilaksanakannya dengan berbantuan teknologi seperti media Virtual Laboratory.…”

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ANALISIS KETERAMPILAN PROSES SAINS SISWA MENGGUNAKAN VIRTUAL LABORATORY PHYSICS EDUCATION TECHNOLOGY (PhET) PADA MATERI INDIKATOR ASAM BASA

Utami

Adilla

2022

jrec

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This research was instigated by learning activities that were not maximum because COVID-19 pandemic, so it was difficult to measure student scientific process skills at Vocational High School of Abdurrab Pekanbaru maximally. This research aimed at knowing student scientific process skills using Physics Education Technology (PhET)Virtual Laboratory on Acid Base Indicator lesson. Quantitative descriptive method was used in this research. Observation sheet, posttest question in the form of essay, and student interview as the supporting instrument were used to measure student scientific process skills. The subjects of this research were the tenth-grade students of TLM at Vocational High School of Abdurrab Pekanbaru, and the objects were student scientific process skills using PhET Virtual Laboratory on Acid Base Indicator lesson at Vocational High School of Abdurrab Pekanbaru. The samples were 20 of the tenth-grade students of TLM 3 at Vocational High School of Abdurrab Pekanbaru selected by using purposive sampling technique. Based on the data obtained, it could be concluded that student scientific process skills using PhET Virtual Laboratory overall were on good category. The highest percentage result of scientific process skills was on the aspect of doing an experiment 97.5%, and the lowest result was on the aspect of grouping skill 82.5%.

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The Effectiveness of Learning Using Virtual Laboratory Toward Student Critical Thinking Ability on Acid-Base Titration Lesson

Putri¹,

Kurniawati²

2021

J. Indones. Soc. Integr. Chemistry

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The learning with experiment activities in the laboratory could increase students' critical thinking ability, but there were some obstacles in its implementation such as a lack of practical work tools in the laboratory. To overcome it, it was used a learning media that could show practical work virtually. This research aimed to know the difference in critical thinking ability between students taught by using a learning method with virtual laboratory and those who were taught by using conventional learning, and the effectiveness of learning using virtual laboratory toward student critical thinking. The experimental method was used in this research with pretest-posttest non-equivalent control group design and purposive sampling technique. The techniques of analyzing the data were t-test to know the difference in student critical thinking and N-gain test to know the effectiveness level. The research findings showed that there was a difference in critical thinking ability between students of experimental and control groups, the posttest mean score of critical thinking ability of the experimental group was 81.91 and the control group was 75.22, this difference could also be seen from the calculation result of t-test that the significance score 0.002 was lower than 0.05, so H0 was rejected and Ha was accepted; effective learning. It was proven by the obtained N-gain score of each student in the experimental group, 28 students were in the high N-gain category with 93.33% percentage and 2 students who were in the medium N-gain category with 6.67% percentage.

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The Development Of Chemistry Virtual Laboratory On Colloidal System To Improve Generic Science Skills

Cited by 3 publications

References 1 publication

Identification of Student Conceptions on the Molecular Structure of Organic Compounds Using Question

Identification of Student Conceptions on the Molecular Structure of Organic Compounds Using Question

ANALISIS KETERAMPILAN PROSES SAINS SISWA MENGGUNAKAN VIRTUAL LABORATORY PHYSICS EDUCATION TECHNOLOGY (PhET) PADA MATERI INDIKATOR ASAM BASA

The Effectiveness of Learning Using Virtual Laboratory Toward Student Critical Thinking Ability on Acid-Base Titration Lesson

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