Nurjanah
@upi.edu
Department of Mathematics Education Faculty of Mathematics and Natural Sciences
Universitas Pendidikan Indonesia
Nurjanah was born in Purwakarta, West Java, Indonesia on November 16, 1965. She began elementary education at SDI Singawinata 2 Purwakarta in 1972 and continued her junior high school at SMP Negeri 1 Purwakarta in 1978. Then she continued her education at SMA Negeri 1 Purwakarta in 1981 In accordance with his interests, he continued his studies at the Teachers and Education Institute of Bandung in 1984 majoring in mathematics education. He then took a master's program in mathematics education in 1990 at the State University of Malang which enabled him to teach discrete mathematics courses, mathematics learning planning, evaluation of mathematics learning, mathematics teaching and learning strategies, mathematics learning media and mathematics education problem studies. In 2010 he continued his mathematics education doctoral program at an Indonesian university of education. He has done extensive research on the development of hands-on activities and computer-based media whose products are published in highly reputable journals.
RESEARCH INTERESTS
Development of media-based hands-on activities and computer-based learning media
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Nindya Langen Luthfiani and Nurjanah
AIP Publishing
Anggi Juliana, Nurjanah, and Dian Usdiyana
AIP Publishing
Nurjanah, JA Dahlan, and Y Wibisono
IOP Publishing
A learning media is one of the many tools that are being developed by teachers to help students learn mathematics. Because of that, the learning media must be designed to fit the students’ characters. Junior high school students need a learning media that fits with the level of concrete thinking so that students are able to adapt the mathematical knowledge that are beginning to get abstract. For this purpose, scientists have tried to improve the learning media that are technology based using Adobe Flash CS3 program. The technology-based learning media using Adobe Flash CS3 have been tested in online learning practices which took part 124 students from several junior high schools in Bandung, as well as math teachers as observers. The results of this implementation show that improved computer-based learning media are responded positively by students. The students feel motivated to study, focused, and highly curious. This response is supported by their comments that the improved media is appealing, well organized system, and the animation has helped them to understand the material.
R B Wiyah and Nurjanah
IOP Publishing
Recently, students still often have difficulties and share common mistakes in solving the linear equation system of three variables. This qualitative descriptive research describes the errors and causes of students’ errors in solving the linear equation system of three variables using Polya’s problem-solving steps. The subjects were 33 students of Grade 10 Science at one of the Senior High School in Indralaya. The data collection techniques used observation, student worksheets, and interviews. The results showed there were several students’ errors and the causes of students’ errors in solving the problems. These errors are errors in identifying the known and asked information, errors in making mathematical models of problems, errors in calculations, errors in arranging the linear equation system of three variables, and errors in giving valid reasons for their answers. The causes of these errors are the limited time for understanding the problem, careless in doing calculations, forgetting the formulas, and lacking understanding of variables concept.
Nurjanah Nurjanah, Isra Mardia, and Turmudi Turmudi
Informa UK Limited
ABSTRACT This research aims to explore the use of ethnomathematics in revealing mathematical representations and in the formulation of a calculation system used in the Marosok trading tradition by the Minangkabau tribe in West Sumatra. Ethnomathematics studies ideas in various cultural activities practiced by ethnic, social, or professional groups. The tradition involves nonverbal communication, such as shaking hands with ‘Marosok’ or touching covered fingers to obtain price agreements in trading livestock. Therefore, this study was conducted using qualitative approaches and the ethnographic method via field notes, unstructured interviews, and documentation studies. The findings showed that mathematical representations of finger symbols and gestures in the Marosok Tradition contain basic numbers. These include half, one, two, two and a half, three, four, five, etc. with functions, such as addition and subtraction, which are used to obtain other numbers needed in livestock trading transactions using specific formulas.
Nurjanah, Burhanuddin Latif, Ricki Yuliardi, and Maximus Tamur
Elsevier BV
Spatial ability and self-regulated learning have broad implications for students. Therefore, this study aimed to determine the improvement of spatial ability and self-regulated learning of students who obtain computer-assisted learning using the 3D Cabri program. This quasi-experimental study with pre-test and post-test design involved 71 tenth grade high school students in Bandung, Indonesia. Furthermore, the experimental class obtained computer-aided learning using the Cabri 3D program, while the control obtained conventional learning using a scientific approach. The analysis discovered that (1) the improvement of students' spatial ability in the experimental class was better than those in the control class, (2) students of the experimental class achieved better spatial ability than those in the control class, (3) the improvement of students' self-regulated learning in the experimental class was better than those in the control class, and (4) students of the experimental class achieved better self-regulated learning than those in the control. These facts can help educators to consider the application of the Cabri 3D program in mathematics education in the future.
Nurjanah, R Yuliardi, and A F Luthfi
IOP Publishing
This research is motivated by the very importance of integrating technological innovation in learning. This research aims to develop interactive learning based on Adobe Flash CS6 in order to improve students' mathematical reasoning abilities. The method used in this study is the Research and Development (R&D) method with steps (1) self-evaluation, (2) prototyping (expert judgment review, one-to-one, and small group), and (3) fieldtest. The population in this study was grade VII students of SMPN 2 Luragung and SMPN 1 Maleber, Kuningan District, West Java. Samples were selected through a purposed random sampling technique. The experimental class was taught using adobe Flash-based interactive learning media, while the control class was taught using classical learning. Data obtained by using the pre-test and post-test to get data on the results of increasing students' mathematical reasoning abilities. Based on the results of data analysis, it is obtained: The development of adobe flash-based mathematics learning media has fulfilled the effective and valid criteria as suitable learning media applied in improving students' mathematical reasoning abilities. Based on field tests there is a significant increase in the average between students who use Adobe Flash media and those who do not use. In other word Adobe Flash based learning media can effectively improve students' reasoning abilities in geometrical concepts.
I Mardia, Turmudi, and Nurjanah
IOP Publishing
Nurul Hasibuan and Nurjanah Nurjanah
EAI
Nurjanah Nurjanah, J Dahlan, and Y Wibisono
EAI
The purpose of this study is to analyze the effect of learning hands-on activity media on the mathematical reasoning ability of junior high school students. The approach of this research is quantitative by using the quasi-experimental method. The research design is pretest-posttest with experimental and control class. The subjects of this study were seventth-grade students of the junior high schools in three schools in Bandung, totaling 278 people. The research data was obtained using a mathematical reasoning ability test. The results of study show that; the reasoning ability of students who get hands-on activity media learning is better than students who get conventional learning.
Nurjanah Nurjanah, , Jarnawi Afgani Dahlan, Yudi Wibisono, , and
Modestum Limited
Lala Septem Riza, Tyas Sawiji, Nurjanah Nurjanah, Haviluddin Haviluddin, Edy Budiman, and Alejandro Rosales-Pérez
International Association of Online Engineering (IAOE)
This research aims to design the concept of learning media for the blind student and apply it to labyrinth game using problem-solving learning model. To design this media, 21 blind child characteristics, learning model, lesson plan and story concept of the game have been considered. After developing the proposed learn-ing media, some experiments on blind students are conducted. Then, the results of the experiments are processed and analyzed based on qualitative method. They shows that scores, perspectives, and focus of users are good. It means that the proposed learning media provides a positive impact on the blind child. Moreover, guidance and direction to students are the important things that have to do when the media is applied.
Siswiyanti, Rusnoto, Saufik Luthfianto, Nurjanah, and Arif Zainudin
IOP Publishing
Abstract This study aims to determine how big the level of musculoskeletal complaints is, the fatigue and increase productivity of batik maker after body posture changes in coloring (dyeing) hand drawn batik cloth uses a machine in standing body posture. This study used Nordic Body Map musculoskeletal measurements and subjective fatigue, the research method used the experimental design of the same subject, namely the design that is variable observation carried out several times, the control subject also applied as the experimental subject. The results of processing data on 20 batik makers were concluded that the percentage of pain in the coloring activity (manual dyeing) by squatting and stooping body posture with a mean was about 65.18 ± 6.45%. The percentage of pain in the machine dyeing activity for standing posture was 50.73 ± 71.73%. The average difference between the level of musculoskeletal complaints on batik staining with squatting/stooping body posture compared to the staining of the standing body posture was 16.80 or a decrease of 19.34%. The results of subjective fatigue questionnaire obtained a decrease in fatigue of manual dyeing activity with dipping machines, namely an activity attenuation decrease from 90% to 62%, attenuation of motivation from 88% to 58%, physical attenuation from 78% to 64%. The average difference between the degree of fatigue in batik staining and stooping body posture compared to the staining of the body posture is 25, 25 or there is a decrease in fatigue of 26.69%. The work posture improvement of standing position on batik dyeing machine that is designed using 3 roll (cylinders) which has a driving power of 0.190 HP, with the working concept of a sheet of fabric wrapped around a cylinder with a 72.5 rpm rotation, frame material made of elbow iron painted and cylinders made of data a the PVC pipe to avoid corrosion could actually increase work productivity by 0, 0190 or 29.19%.
Nurjanah, Wahyudin, and S. Prabawanto
AIP Publishing
S R Septyawan, D Suryadi, and Nurjanah
IOP Publishing
Nurjanah, J A Dahlan, and Y Wibisono
IOP Publishing
Nurjanah and J A Dahlan
IOP Publishing
This study is back grounded by the importance of self-regulated learning as an affective aspect that determines the success of students in learning mathematics. The purpose of this research is to see how the improvement of junior high school students' self-regulated learning through computer based learning is reviewed in whole and school level. This research used a quasi-experimental research method. This is because individual sample subjects are not randomly selected. The research design used is Pretest-and-Posttest Control Group Design. Subjects in this study were students of grade VIII junior high school in Bandung taken from high school (A) and middle school (B). The results of this study showed that the increase of the students' self-regulated learning who obtain learning with computer-based learning is higher than students who obtain conventional learning. School-level factors have a significant effect on increasing of the students' self-regulated learning.
R Yuliardi and Nurjanah
IOP Publishing
The purpose of this study to analyze mathematical communication skill's student to resolve geometry transformation problems through computer Assisted Geogebra using Technologically Aligned Classroom (TAC). The population in this study were students from one of Vocasional High School Student in West Java. Selection of sample by purposed random sampling, the experimental class is taught Technologically Aligned Classroom (TAC) with GeoGebra, while the control class is taught by conventional learning. This study was quasi-experimental with pretest and posttest control group design. Based on the results; (1) The enhancement of student mathematical communication skills through TAC was higher than the conventional learning; (2) based on gender, there were no differences of mathematical communication skilss student who exposed with TAC and conventional learning; (3) based on KAM test, there was significant enhancement of students' communication skills among ability of high, middle, and low KAM. The differences occur between high KAM and middle KAM, and also between high KAM and low KAM. Based on this result, mathematics learning Assisted Geogebra using Technologically Aligned Classroom (TAC) can be applied in the process of Mathematics Learning in Vocasional High School.
M Elvi and Nurjanah
IOP Publishing
This research is distributed on the issue of the lack of visual thinking ability is a must-have basic ability of students in learning geometry. The purpose of this research is to investigate and elucide: 1) the enhancement of visual thinking ability of students to acquire learning assisted with geogebra tutorial learning: 2) the increase in visual thinking ability of students who obtained a model of learning assisted with geogebra and students who obtained a regular study of KAM (high, medium, and low). This research population is grade VII in Bandung Junior High School. The instruments used to collect data in this study consisted of instruments of the test and the observation sheet. The data obtained were analyzed using the test average difference i.e. Test-t and ANOVA Test one line to two lines. The results showed that: 1) the attainment and enhancement of visual thinking ability of students to acquire learning assisted geogebra tutorial better than students who acquire learning; 2) there may be differences of visual upgrade thinking students who acquire the learning model assisted with geogebra tutorial earn regular learning of KAM (high, medium and low).
Nurjanah, J A Dahlan, and Y Wibisono
IOP Publishing
This paper aims to make a design and development computer-based e-learning teaching material for improving mathematical understanding ability and spatial sense of junior high school students. Furthermore, the particular aims are (1) getting teaching material design, evaluation model, and intrument to measure mathematical understanding ability and spatial sense of junior high school students; (2) conducting trials computer-based e-learning teaching material model, asessment, and instrument to develop mathematical understanding ability and spatial sense of junior high school students; (3) completing teaching material models of computer-based e-learning, assessment, and develop mathematical understanding ability and spatial sense of junior high school students; (4) resulting research product is teaching materials of computer-based e-learning. Furthermore, the product is an interactive learning disc. The research method is used of this study is developmental research which is conducted by thought experiment and instruction experiment. The result showed that teaching materials could be used very well. This is based on the validation of computer-based e-learning teaching materials, which is validated by 5 multimedia experts. The judgement result of face and content validity of 5 validator shows that the same judgement result to the face and content validity of each item test of mathematical understanding ability and spatial sense. The reliability test of mathematical understanding ability and spatial sense are 0,929 and 0,939. This reliability test is very high. While the validity of both tests have a high and very high criteria.