scholarly journals Design and Validation of a Virtual Chemical Laboratory—An Example of Natural Science in Elementary Education

2021 ◽  
Vol 11 (21) ◽  
pp. 10070
Author(s):  
Chi-Yi Tsai ◽  
Yu-Chen Ho ◽  
Humaira Nisar

In the natural science curriculum, chemistry is a very important domain. However, when conducting chemistry experiments, safety issues need to be taken seriously, and excessive material waste may be caused during the experiment. Based on the 11-year-old student science curriculum, this paper proposed a virtual chemistry laboratory, which was designed by combining a virtual experiment application with physical teaching materials. The virtual experiment application was a virtual experiment laboratory environment created by using selected experimental equipment cards in combination with augmented reality (AR) technology. The physical teaching materials included all virtual equipment required for experiment units. Each piece of equipment had corresponding cards for learners to choose from and utilize in specific experimental operations. It was hoped that students were able to achieve the desired learning effectiveness of experimental teaching while reducing the waste of experimental materials through the virtual experimental environment. This study employed the quasi-experimental and questionnaire survey methods to evaluate both learning effectiveness and learning motivation. Eighty-one students and eight elementary school teachers were surveyed as research subjects. The experimental results revealed that significant differences in learning effectiveness existed between the experimental group and control group, indicating that the application of AR technology to teaching substantively helped enhance students’ learning effectiveness and motivation. In addition, the results of the teacher questionnaire demonstrated that the virtual chemistry laboratory proposed in this study could effectively assist with classroom teaching.

2015 ◽  
Vol 11 (2) ◽  
pp. 80-95 ◽  
Author(s):  
Lai-Chung Lee ◽  
Kuang-Chung Hao

Multimedia teaching applications have been widely utilized in various subjects. The presentation of teaching materials with animations and games helps to stimulate the visual sense and enhance the learning motivation of learners. Successful learning, however, requires the stimulation of learning motivation that can inspire learners to achieve the desired learning objectives. This study combines the ARCS (Attention, Relevance, Confidence, Satisfaction) motivation model, and humor to design a set of multimedia applications that include teaching animations and games for sixth graders' natural science and technology course, called the Cat's Cradle Multimedia Learning System (CCMLS). The scenario stories of anthropomorphic characters introduce four units of natural science: levers, axles, pulleys and gears. Additionally, games are designed to impress learners even more. After the applications were prepared, tests for learning effectiveness, learning motivation and perceived fun associated with teaching materials were conducted with 106 students at the Qishan Elementary School in Kaohsiung. The experimental group used CCMLS, while the control group used videos of the textbook as the applications. A pre-test and post-test, ARCS Learning Motivation Questionnaire, Smileyometer and interviews were conducted with both groups. According to the statistical analysis, significance was detected in regard to learning effectiveness between the experimental group and the control group. Significance was also found in ARCS learning motivation and perceived fun of teaching materials. Moreover, there is a significant positive correlation between the perceived fun related to the teaching materials and learning motivation. The contribution of this study lies in the proposal of the digital game-based learning (DGBL) from the design perspective: to enhance students' learning motivation and use willingness regarding the teaching materials of the drama and the cartoon characters in humorous dialogues. The proper sound and light effects and examples that are close to daily life will also be taken into consideration in the design of the multimedia applications.


2019 ◽  
Vol 4 (2) ◽  
pp. 97-102
Author(s):  
Desty Haswati ◽  
Dian Nopitasari

This study aims to examine the increase in student’s mathematical conceptual understanding ability using differential equation teaching materials using Guided Discovery assisted by Mathematica software. This study is a quasi-experimental with pretest posttest Control Group Design. The research subjects were the sixth semester students of Mathematics Education Study Program, Muhammadiyah University of Tangerang, with a sample of as many as two classes selected by simple random sampling technique. The experimental class uses differential equation teaching materials with the Guided Discovery method assisted by Mathematica software and the control class using ordinary teaching materials. The results of the study showed that an increase in mathematical conceptual understanding ability of the experimental class was higher than the control class. The average normalized gain of students in the experimental class is in the high and medium categories. While the control class is in the medium and low category. The normalized gain difference in the experimental class is better than the control class.


2019 ◽  
Vol 3 (1) ◽  
pp. 70-80
Author(s):  
Sri Ayu Harani Tanjung ◽  
Yuli Amalia

Bahan ajar dikembangkan berdasarkan karakteristik siswa, sehingga kompetensi yang ditetapkan dapat dicapai. Secara umum kemampuan pemecahan masalah siswa masih sangat rendah, siswa belum bisa memahami soal, sehingga terkendala dalam menentukan model penyelesaian soal matematika. Penelitian ini bertujuan untuk mendeskripsikan kevalidan, keefektifan, dan respon siswa terhadap bahan ajar berbasis Problem Based Learning berkemampuan pemecahan masalah yang dikembangkan. Penelitian ini merupakan penelitian pengembangan dengan menggunakan model ADDIE yaitu Analysis, Design, Development, Implementation, dan Evaluation. Subjek Penelitan dalam penelitian ini adalah siswa SMA Negeri 1 Meureubo kelas X Mia2 sebanyak 23 siswa. Instrumen penelitian berupa lembar validasi, angket respon siswa, dan tes. Dari hasil uji coba, pada uji coba I dan II diperoleh bahan ajar berbasis Problem Based Learning yang dikembangkan efektif ditinjau dari 70% siswa yang mengikuti tes kemampuan pemecahan masalah memperoleh nilai minimal 75 dan tercapainya ketuntasan belajar tes kemampuan pemecahan masalah  75% dan respon positif siswa terhadap bahan ajar berbasis Problem Based Learning untuk kemampuan pemecahan masalah yang dikembangkan. Teaching materials are developed based on the characteristics of students, so that the specified competencies can be achieved. In general, students' problem solving abilities are still very low, students have not been able to understand the problem, so it is constrained in determining the mathematical problem solving model. This study aims to describe the validity, effectiveness, and response of students to Problem Based Learning-based teaching materials that are problem-solving skills developed. This research is a development research using ADDIE models namely Analysis, Design, Development, Implementation, and Evaluation. The research subjects in this study were 23 students of Meureubo High School 1 in class Mia2 as many as 23 students. The research instruments were validation sheets, student response questionnaires, and tests. From the results of the trials, in the first and second trials obtained teaching materials based on Problem Based Learning that were developed effectively in terms of 70% of students taking the test of problem solving skills obtained a minimum score of 75 and achievement of learning completeness 75% problem solving ability tests and positive responses for Problem Based Learning based teaching materials for problem solving abilities developed.


2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni

Teaching materials by integrating local culture makes easier for students to understand the subject matter in the learning process. The aims of the study is to measure the effectiveness of teaching materials based on local wisdom of agriculture in Binjai in improving the students problem solving abilities. The research method was a quasi experimental which use non equivalent control group in the pretest posttest design. The sample of study were students of Senior High School grade X in Binjai that consisted of experiment group which used teaching materials based on local wisdom of agriculture in Binjai and control group that used student handbooks. Teaching materials are tested by material experts and technology experts to ensure the quality of teaching materials. Data collection was conducted through test. The results showed that the teaching materials based on local wisdom of agriculture in Binjai effective in improving students problem solving abilities in the experimental group students based on the results of N gain value was 0.67 which has medium criteria. It means teaching materials based on agricultural local wisdom of agriculture in Binjai can be used as one of the teaching materials in learning activities.


2019 ◽  
Author(s):  
Anna Farhiya Ulfah

The goal of this research is gaining description on science literacy improvement of junior high school students regarding the topics of earthquake and flood as an effect of Contextual Based Learning (CBL) implementation during science instruction. Quasi-experiment serves as the method of this study with non-equivalent control group pre-test post-test design. Jigsaw cooperative learning method functions as the control treatment. Research subjects involve 52 students of grade VII in a state junior high school in Bandung Regency, West Java. Those research subjects are divided into two classes namely experiment class and control class. The instrument used to collect relevant data is science literacy test covering aspects of science content, science competence, and attitude towards science. Two independent sample t-test is applied to analyze the comparison of science literacy improvement reached between experiment and control class. The result of statistical calculation for two independent sample t-test N-gain using version 23 SPSS software shows a significant value of 0.00 < α. 0.05 for all aspects. The findings indicate that CBL implementation during science instruction within topics of earthquake and flood is proven to be valid to improve students’ science literacy compared to jigsaw cooperative model.


2021 ◽  
Vol 13 (6) ◽  
pp. 3276
Author(s):  
Yi-Hsing Chang ◽  
Jin-Yu Lin ◽  
You-Te Lu

The flipped classroom approach is an emerging instructional approach that integrates digital technology. This approach has been applied in several fields, and it has demonstrated considerably higher learning effectiveness than conventional teaching modes. Common problems in its implementation that directly or indirectly affect learning effectiveness include students’ low intention to preview learning materials and low class participation. To overcome these problems, the present study sought to increase students’ intention to preview learning materials and participate in class through the implementation of educational activities integrated with an incentivisation system using a virtual currency and the provision of handouts. Students in two programming classes in the information management department of the participating university were divided into the experimental and control groups. The intention to preview learning materials, levels of class participation, and learning effectiveness were all significantly higher in the experimental group than in the control group.


Author(s):  
Ismi Puji Astuti

Background: The first labor anxiety is an unpleasant psychological condition due to physiological changes that cause psychological instability. The condition of excessive anxiety, worry, fear without cause, and stress, causes the muscles of the body to tense up, especially the muscles in the birth path to become stiff and hard, making it difficult to expand. This study analyzed the effect of pregnancy exercise on third trimester primigravida anxiety in dealing with childbirth. Methods: Quasi experimental design with nonrandomized pretest-postest control group. The sampling technique used was purposive sampling with 34 research subjects. 17 people for the treatment group were given pregnancy exercise 8 times, and 17 people for the control group were given health education about preparation for childbirth. Results: The results of data analysis using the Wilcoxon signed rank test showed that the average reduction in the treatment group was 8.00 and the control group was 3.00. The effect of pregnancy exercise on third trimester primigravida anxiety in the treatment group with a p-value (0.000) <(0.05), while the control group with a p-value (0.180)> (0.05). Conclusion: There is an effect of pregnancy exercise on third trimester primigravida anxiety in dealing with childbirth in the Wuryantoro Health Center work area. 


Author(s):  
Li-Hua Zhang ◽  
Rong-Yan Yu ◽  
Ya-Fen Ying, ◽  
Jing Yin ◽  
Na Li ◽  
...  

Objective: The present study aimed to explore the effect of pre-admission “quasi-collective” health education for patients with ophthalmic day surgery. Methods: For this study, a total of 200 patients undergoing ophthalmic day surgery from February 2019 to December 2019 were enrolled as the research subjects. The patients were divided randomly into the observation group and the control group, with 100 cases in each group. For the control group, conventional health education was conducted after admission. On the day of admission, the admission education and peri-operative health education were performed. For the observation group, pre-admission health education was provided to the patients, and detailed education on the admission instructions, pre-operative precautions, and simulation of the intra-operative process were given by the nurses. On the day of admission, the understanding of the education was evaluated, and any weaknesses in the health education were addressed. The anxiety status, method of handwashing, method of administering the drug to the eye, preoperative preparations, intra-operative training, preoperative medication, diet guidance, and postoperative care were compared between the two groups of patients. Results: Before discharge, there were significant differences in the anxiety scores, impact, and satisfaction of health education between the two groups of patients, all of which were statistically significant (P < 0.05). Conclusion: The pre-admission "quasi-collective" health education for patients undergoing day surgery in ophthalmology was better than conventional health education.


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Yurike Septianingrum ◽  
Nety Mawarda Hatmanti

Introduction: Menstrual pain or dysmenorrhea is a common problem that is often complained of by women during menstruation. Menstrual pain can interfere learning activities, especially final year students in completing their thesis. The purpose of this study were to analyze the effect of endorphin massage on menstrual pain in final year nursing students of UNUSA. Method: This study using an experimental with pre-test and post-test control group design. Research subjects of this study was recruited using simple random sampling who was included inclusion and exclusion criteria. Research subjects in this study was of 46 students who were then divided into two groups, 23 students into intervention group and 23 students into control group. Data were collected by using observation with VAS. Data were analyzed by using Wilcoxon and Mann-Whitney U test. Result and Analysis: The results showed that: 1) There was difference VAS score between pre test and post test in intervention group (p= 0,000), 2) There was difference VAS score between intervention and control group (p= 0,017). Conclusion: Endorphin massage could reduce menstrual pain in final year nursing student of UNUSA. Further research, is expected that endorphin massage can be compared with music therapy to reduce menstrual painKeywords: endorphin massage, menstrual pain, primary dysmenorrhea


2021 ◽  
Vol 11 (2) ◽  
pp. 357
Author(s):  
Sumarmi Sumarmi ◽  
Muhammad Aliman ◽  
Tuti Mutia

The study aimed to determine 1) the effect of digital eco learning in student worksheet flipbooks on environmental literacy projects, and 2) the effect of digital eco learning in student worksheet flipbooks on student ecological competence. The research is a quasi-experimental study using a Pretest-Posttest Non-equivalent Control Group. The research subjects were students in the Environmental Geography course semester 6 of 2020, divided into the experimental and control groups. The research was conducted at the Geography Education study program, Social Science Faculty, State University of Malang, Indonesia. Data were analyzed using the independent sample t-test in SPSS version 23 for windows. The results found: 1) there is a significant effect of digital eco learning with student worksheet flipbook on environmental project literacy competence, and 2) there is a significant effect of digital eco learning with student worksheet flipbooks on ecological competence.


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