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Edumatsains
Published by Universitas Kristen Indonesia
ISSN : 25277642     EISSN : 25277235     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics
Jurnal EduMatSains merupakan wadah untuk menampung dan mempublikasikan hasil karya baik berupa hasil penelitian maupun kajian teori yang original dalam ruang lingkup pendidikan matematika dan pendidikan sains (fisika, kimia, biologi) serta ilmu matematika dan ilmu sains (fisika, kimia, biologi) bagi semua civitas academika khususnya dosen, guru, peneliti dan mahasiswa. Jurnal EduMatSains terbit sebanyak dua kali dalam satu tahun (Juli dan Januari). Jurnal EduMatSains diterbitkan Oleh Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia.
Arjuna Subject : -
Articles 359 Documents
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PENGEMBANGAN LEMBAR KERJA SISWA BERBASIS THEORY OF DIDACTICAL SITUATION DALAM MATERI STATISTIKA Putri Amara; Rafiq Zulkarnaen
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3609

Abstract

The aim of this study is to develop student worksheets in statistical material based on the theory of didactical situations. The theory of didactical situations was initiated by Brousseau to design learning situations based on a-didactic, milieu, and didactic situations. Model of Plomp’s design research is used to develop student worksheets, consisting of preliminary analysis (curriculum analysis, student learning trajectory, and statistical material analysis), stages of development, and prototype testing (self-revision, expert-review, one-to-one, and small-group tests). In the preliminary stage, interviews were conducted with one teacher and two students, obtaining didactic and epistemological obstacle on statistical material. The didactic and epistemological obstacles gained from interviews became epistemological models in composing the student worksheets. In the self-revision stage, the student worksheets are improved on aspects of language and material conformity. Meanwhile, the assessment of two experts recommends the student worksheets needs to improve the a-didactical situation. At the one-on-one stage to test the readability of the student worksheets tested to five students, in this stage, there is no improvement. Then, in the small group test stage tested to ten students and one teacher in the learning process obtained the conclusion of the student worksheets meets practicality and effectiveness. In general, the results obtained by the student worksheets have fulfilled practicality, effectiveness, and validity based on the theory of didactical situation that contains a didactic situation, milieu, and didactic situations.
PROFIL KEMAMPUAN KONEKSI MATEMATIS SISWA SMP DALAM MENYELESAIKAN SOAL PERSAMAAN GARIS LURUS Dinda Risdayani; Alpha Galih Adirakasiwi
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3613

Abstract

Mathematical connection is one of the mathematical ability that need to be possessed and developed in students. Mathematical connection ability will help students build a much better understanding of mathematics. This research is a qualitative descriptive study that aims to describe students' mathematical connection ability in solving straight line equations. The research subjects in this study were three students of class VIII-D at SMPIT Nurul Husna Bekasi Regency, from 14 people. Subject selection based on written test results. The data collection technique described the mathematical connection ability test questions and interviews. Then, the data analysis technique used was data reduction, data presentation, and conclusion drawing. The study results showed that students with high mathematical connection ability had met the three indicators of mathematical connection, in contrast to students with low and medium ability who had not completed the three indicators of mathematical connections.
MISKONSEPSI SISWA DALAM MENYEDERHANAKAN OPERASI PERKALIAN DAN PEMBAGIAN PADA BENTUK ALJABAR MENURUT TEORI BRUNER Annisa Kurniawati; Hanifah Nurus Sopiany
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3614

Abstract

This study aims to determine the types of student misconceptions in simplifying multiplications and division operations algebraic form. The research method used is a qualitative method with a descriptive approach, subject in this research were students VIIK at SMPN 1 west Karawang for the 2020/2021 academic year with a total of 20 students in early stages of data collection using test and non test instruments is questionnaires. Then the data are proceed to the second stages, that is taking 4 selected objects by purposive sampling where each objects represents highest,middle,lowest class categories based on test and non-tes result. 4 objects were taken to analyze related to the types of students misconceptions that arise in solving problems by referring to Bruner’s cognitive processes. The result of this study indicates types of misconceptions experienced by students due ti incompability with Bruner’s cognitive processes including; (a) misconceptions of notation due to an error in the transformation stage ; (b) generalization misconceptions due to errors in the information stage ; (c) misconceptions about the application of the rules due to an error in the information stage; (d) Misconceptions about the meaning of letters due to errors in the information stage.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMA DALAM MENYELESAIKAN SOAL SISTEM PERSAMAAN LINEAR TIGA VARIABEL Novianti; Lessa Roesdiana
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3615

Abstract

Learning mathematics is something that must be done by students because mathematical problem solving ability that obtained from learning process are very necessary in students daily lives. The purpose of this research was to describe mathematical problem solving ability of high school student to solve the linear equations in three variables question. The population of this research was 30 student of 10th grade student of SMA Negeri 1 Klari. The sample of this research was determined by purposive sampling and obtained 6 students with different ability. The data collection was done by giving the test of the mathematical problem solving which had 5 story questions. The result of this research is (1) The student with high problem solving ability could solved the problem given to them though they didn’t check the answers back, (2) The student with medium problem solving ability could also solved the problem given to them though they were not completely understood what was asked on question so mistakes happened at the last part also didn’t check their answers, and (3) The student with low problem solving ability didn’t write down the process as to how they got the answer and also didn’t check back the answer they got. From the results of this research, we know that students mathematical problem solving abilities are still lacking because of that it is necessary to find a way to improve students mathematical problem solving abilities.
KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMP DALAM MENYELESAIKAN SOAL TIMSS PADA TOPIK DATA DAN PELUANG Irma Rizki Amanda; Redo Martila Ruli
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3616

Abstract

Mathematical problem solving ability is one of the goals of learning mathematics that must be possessed by every student. This study aims to describe the mathematical problem solving ability of junior high school students in solving TIMSS questions on the topic of data and probability. This research uses a qualitative approach with a descriptive method. The research techniques used are tests, interviews, and triangulation. The results of the study were 6 students, 3 students met the indicators of identifying the adequacy of data, 4 students met the indicators of formulating a mathematical problem or making a mathematical model of a problem, 2 students meeting the indicators of applying strategies to solve mathematical problems, 1 student fulfilling the indicators of explaining or interpreting the results accordingly. the initial problem and re-examined the results of the answers, and 2 students fulfilled the indicators using mathematics in a meaningful way. The conclusion in this study is that the mathematical problem solving ability of junior high school students is still relatively low. This is due to several factors, namely students have not been trained to write down important points contained in questions such as what is known and asked, students are accustomed to directly answering questions without using mathematical calculations, in applying solving strategies students still find it difficult, and students are not accustomed to giving conclusions and recheck the results of the answers.
ANALISIS KEMAMPUAN BERPIKIR GEOMETRI BERDASARKAN TAHAP BERPIKIR VAN HIELE PADA PEMBELAJARAN MATEMATIKA SISWA SMP Aulidia Nauval Kurnia; Nita Hidayati
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3618

Abstract

Geometry is a mathematical branch that deals with the shape of an object, the spatial relationship between various objects, and its properties. Learning geometry is essential to supporting logical thinking ability, perceptual intuition, and reading and interpreting mathematical arguments. But many middle school students do not reach the stage of deduction and precision. The research was to analyze a high school student's geometry ability based on Van Hiele's stages of thinking. They consist of five levels of visualizing, analysis, sequence, deduction, and precision. It is a type of qualitative study with a descriptive method. The sample consisted of 20 eighth-graders in the located in the Karawang district. Data collection is carried out using a written questionnaire and test. Research shows that stage-0 (visualization) is the student's most achievable point from a questionnaire at 55% and a written test of 65%. The third stage (deduction) and fourth (accuracy) are the most difficult for students to achieve, based on written tests only 9% of students reach the third stage and only 6% of students reach the fourth. Student difficulties in learning this geometry may be due to several factors in their understanding of prerequisite materials, ability to concepts and pale-building qualities is lacking, and limited skill in using geometry ideas to solve mathematical problems.
PENGARUH MOTIVASI BELAJAR TERHADAP HASIL BELAJAR MATEMATIKA SISWA DI SMPN 2 TIRTAMULYA Risky Nugroho; Attin Warmi
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3627

Abstract

Purpose of this study was to determine the effect of learning motivation to student mathematics learning outcomes at SMPN 2 Tirtamulya. The method used is a quantitative method. The population in this study were all students of SMP Negeri 2 Tirtamulya for the academic year 2021/2022, with 18 students of class VIII being the research sample. Data learning motivation and mathematics learning outcomes were obtained using questionnaires and documentation. The independent variable in this study is learning motivation, while the dependent variable is the result of learning mathematics. The data obtained were then analyzed using descriptive statistics and inferential statistics. The results showed that learning motivation had a significant positive effect to student mathematics learning outcomes at SMP Negeri 2 Tirtamulya. The level of closeness of the relationship between learning motivation and student mathematics learning outcomes is in the very strong category. The magnitude of the influence of learning motivation on students' mathematics learning outcomes is 95.84%. Meanwhile, the influence of other factors on the mathematics learning outcomes of SMP Negeri 2 Tirtamulya students is 4.16%.
POTENSI LIMBAH POPOK BAYI SEBAGAI MATRIKS PENGONTROL PELEPASAN PUPUK UREA PADA TANAMAN CABAI Nurfika Ramdani; Mariaulfa Mustam; Hijrah Amaliah Azis
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 1 (2022): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i1.3454

Abstract

The problem of disposable diaper waste is a serious problem that challenges the environment. Therefore, the researchers sought the utilization of diaper waste in agriculture. Efficiency of fertilizer absorption in plants in the environment by 30-40%, remaining in the air and evaporating into ammonia gas. Utilization of baby diaper waste as a matrix and urea as a filler was carried out in this study. This is expected to be able to control the release of nitrogen in fertilizers in accordance with the amount and amount needed by plants (desorption) and maintain nitrogen requirements in the soil, so that the amount of fertilizer given is more efficient than conventional methods. How the purpose of this research is how to make fertilizer based on diaper waste, determine Nitrogen adsorption capacity into the matrix and determine the fertilizer requirements for growing chilli seedlings. The study was divided into 5 stages, the processing of baby diaper waste; second, the manufacture of urea larvae (fillers); three, filling the filler into the matrix; Rate, determine the Nitrogen adsorption capacity into the matrix; discuss, test on plants. The research results obtained are variations in the contribution of urea used as fillers is 15%. Based on this research, it can be said that diaper waste has the potential to control the release of urea. Furthermore, it can explain the rate of release of urea in chili plants.
NERACA ENTALPI UNTUK PENENTUAN NILAI KALOR PADA BERBAGAI JINTAN HITAM Adilah Aliyatulmuna; H.W. Wijaya; M. Murti; M. Rafli
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 1 (2022): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i1.3760

Abstract

The application of the enthalpy balance in solving the calorific value calculation has substituted the application of equation of DU = m(C)(DT). The energy balance refers to (accumulation) = (total energy entering the system) - (total energy leaving the system) + (heat entering the system) - (work done by the system) + (work to enter mass into the system) - (work to remove mass of the system), which produces an enthalpy balance of DH1m1 =DH2m2 generating several assumptions. The assumptions include: first, the system is in a steady state condition; second, the system work (W) is quite small; and third, neglect (Dng)RT results in internal energy (DU) of the nickel wire, having a value almost equal to the enthalpy from the oxidation reaction of the nickel wire. The application of the enthalpy balance requires data on the enthalpy of combustion from a standard material, such as benzoic acid. The result of the enthalpy balance is the positive capacity of the bomb calorimeter. In determining the heat of a material, the enthalpy balance equation requires the value of the calorimeter capacity. This experiment examines the calorific value of black cumin in the form of oil, seeds, and a mixture with 20% coconut oil. The test results indicate that black cumin oil has the highest calorific value, which is in accordance with the referred literature reporting that black cumin oil has a high calorific value, while dried black cumin or seeds and palm oil have a similarly low calorific value.
DESKRIPSI KEMAMPUAN KOMUNIKASI MATEMATIS SISWA DALAM PENYELESAIAN PERMASALAHAN PROGRAM LINIER Maduni Ismu Qolbi; Indrie Noor Aini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 1 (2022): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i1.3772

Abstract

This study aims to describe the mathematical communication skills of high school students in class XI on linear program material. The research method used is descriptive research. The subjects in this study consisted of 5 students of class XI one of the public high schools in Karawang Regency which were determined using purposive sampling technique. The research data collection technique was obtained from a test instrument in the form of 3 validated description questions which contained 3 indicators of mathematical communication ability. The results of this study indicate that the mathematical communication ability of class XI high school students in Karawang Regency in understanding linear programming material is still very low. This can be seen from the average percentage of the three questions of mathematical communication skills is 48.3℅. In indicator 1, students have not been able to express mathematical ideas through writing, demonstrate and visually describe them. For indicator questions 2 students are able to understand, interpret, and evaluate mathematical ideas both in writing and in other visual forms, but there are still some errors. Meanwhile, on indicator questions 3 students have not been able to use terms, notations, mathematical symbols and their structures to present ideas, describe relationships with various situation models.

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